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dmsnyder's picture
dmsnyder

I have made a video demonstrating how to use a flipping board.

http://www.youtube.com/watch?v=caAif4A03Jk

Enjoy! David

dmsnyder's picture
dmsnyder

Scoring hearth loaves made with high hydration doughs is a challenge. Expressions of frustration with this in TFL postings are not rare. Much good advice regarding how to accomplish nice scoring of wet, sticky dough has been offered, but it is scattered. So, I thought I would share my own advice on this subject in one place.

These two bâtards are San Joaquin Sourdoughs. (For the formula and procedures, please see San Joaquin Sourdough: Update. Today's bake was different only in that I used just 100 g of 100% hydration starter.) The effective hydration of this dough is 74.5%. It is a sticky dough and a good test of one's shaping and scoring abilities. Yet, as you can see, it is possible to get nicely shaped loaves from this dough with cuts that bloom nicely and form impressive ears.

 

The key points in achieving this are the following:

A Key Point

  1. Gluten must be well-developed by mixing and fermentation. Good dough “strength” is important for crumb structure, but also for successful shaping. It is even more critical in wet doughs, because these tend to spread out and form flat loaves if their shape is not supported by a good, strong sheath of gluten.

  2. Pre-shaping and shaping can add to dough strength through additional stretching of the dough in the process of forming the loaves. A wet dough like this needs to be tightly shaped. This is a challenge, because it also has to be handled gently. Rough handling will result in excessive de-gassing and a dense loaf. It will also tend to make the dough stick to your hands more. When it sticks, it tears and makes weak spots in the loaf surface which are likely to burst during oven spring. The goal is to form the tight gluten sheath by stretching the dough and sealing the seams while avoiding downward pressure on the dough pieces being shaped. “An iron hand in a velvet glove.” Dough sticking to your hands can be decreased by lightly flouring your hands, wetting them or oiling them. However, the most helpful trick is to touch the dough lightly and as briefly as possible each time.

  3. The loaves need to have lateral support during proofing. This is to prevent them from spreading out. Support can be provided by a banneton (proofing basket) or on baker's linen or parchment, where folds in the couche material, sometimes reinforced with rolled up towels or the like under the material, provide the support. (I suppose the “ultimate support” is provided by a loaf pan.)

  4. The ideal material to support proofing loaves is absorbent. Baker's linen, cloth-lined bannetons and floured, coiled cane brotformen all absorb some moisture from the surface of the loaves in contact with them. This makes that surface a bit less sticky and easier to score without the cut edges sticking to the blade excessively. (I do not want the loaf surface so dry it forms a “skin.”) I like to proof loaves with the surface I am going to score on the absorbent material. This means baguettes and bâtards are proofed smooth side down (seam side up). Note that baking parchment is not absorbent, so, while advantageous for other reasons, it is not ideal for this purpose.

  5. Loaves should not be over-proofed. A greatly over-proofed loaf may actually collapse and deflate when scored. Short of that, it will still have less oven spring and bloom. This is a relatively greater problem with high-hydration doughs which are more delicate to start with. I find the “poke test” as reliable as any other criterion for when a loaf is ready to bake. However, it is not quite as reliable with very wet doughs. Neither is the degree of dough expansion. You just have to learn through experience with each formula when it is perfectly proofed.

  6. Loaves should be scored immediately after transferring to a peel and immediately before loading in the oven. Letting high-hydration doughs sit too long on the peel is asking them to spread out, especially if they have been scored ,which disrupts the supportive gluten sheath.

  7. The wetter the dough, the shallower the cuts. This is not as critical for boules, but, for long loaves like baguettes and bâtards, if you want good bloom, and especially if you want good ear formation, The cuts need to be very shallow (about 1/4 inch deep) and at an acute angle (30-45 degrees). A deeper cut creates a heavy flap that will collapse of its own weight and seal over, rather than lifting up to form an ear as the cut blooms open. The cuts made on the loaves pictured here were barely perceptible on the unbaked loaf surface. Resist the temptation to re-cut!

  8. Minimize dough sticking to the blade and getting dragged, forming a ragged cut. The cuts need to be made swiftly and smoothly, without hesitation. A thin, extremely sharp blade is best. Some find serrated blades work well for them. I find a razor blade on a bendable metal handle works best for me. The cuts are made with the forward end of the blade only, not the whole length. Some find oiling or wetting the blade lessens sticking. I have not found this necessary.

  9. Humidify the oven with steam during the first part of the bake. This delays firming up of the crust which would restrict the loaf from expanding (oven spring) and the cuts from opening (bloom).

Most of these points apply to scoring in general. I have indicated where there are differences or special considerations applying to high-hydration doughs.

Finally, a mini-glossary:

Scoring refers to the cuts made on the surface of the loaf prior to baking. The primary purpose of scoring is to create an artificial weak spot and direct expansion of the loaf to it so the loaf doesn't burst at some random point. Secondarily, the scoring pattern influences the final shape of the loaf. And lastly, the pattern of cuts can be decorative and, if unique, can serve as a “signature” for the baker.

Oven spring is the expansion of the loaf when exposed to oven heat.

Bloom refers to the opening up of the scoring cuts during oven spring. The French term for this is grigne.

 

Ear, when pertaining to bread, is a flap of crust that separates from the surface during oven spring and bloom.

For additional information regarding scoring and a more basic introduction to this topic, please see The Scoring Tutorial Also, excellent examples of shaping and scoring can be found in videos on youtube.com, particularly those made by Ciril Hitz, and on the King Arthur Flour web site. I have not found any that address the peculiar challenges presented by higher-hydration doughs, however.

Happy baking!

David

dmsnyder's picture
dmsnyder

In October, 2008 I posted a formula for Greenstein's Jewish Sour Rye which converted his recipe, which was written in volume measurements, to ingredient weights. I have made this bread many times since, but I've never bothered to calculate the baker's percentages for the formula. I decided to do so today and thought I would post the procedures as a tutorial on “baker's math” for new baker's and others who have just never gotten comfortable with this very valuable tool.

Here is the formula I wrote in 2008.

Ingredients

Wt (g)

First Clear flour

500

Water (80-199ºF)

240

Sea salt

12

Ripe rye sour (100% hydration)

750

Instant yeast

7

Altus (optional)

1/2 cup

Caraway seeds

1 T

Cornmeal for dusting parchment

 

Cornstarch glaze

 

 

Converting the formula to baker's math

Baker's math is a method of expressing the quantity of all ingredients, always expressed as weights, as a proportion of the total flour in the formula. This provides a way of comparing formulas and of easily converting them to make a larger or smaller batch of dough. By convention, the total flour is always 100%. If your formula uses more than one type of flour, their total is 100%. So, to use a simple baguette-type dough as an example, the formula might be:

Ingredients

Baker's %

AP flour

100

Water

65

Salt

2

Instant yeast

1

Total

168

Note that the total is over 100%. This is confusing to many initially. Get used to it. This total baker's percentage is an important number, as you will soon see. Again, this formula does not tell you how much of any ingredient to use, so far, only their proportionate amounts. In fact, knowing these proportions gives you all the information you need to make any amount of dough you need for a bake, whether its 500 g or 100 kg.

We have the ingredient amounts for a “batch” of Greenstein's rye bread, and we want to calculate the baker's percentages, so we can make a bigger (or smaller) batch of dough than the original recipe produces.

This bread uses a rye sour – a rye sourdough starter. When working with a pre-ferment like a poolish or a rye sour, there are two ways of representing it in baker's math. One is to treat it a distinct ingredient, like water or salt. The other is to break the pre-ferment down into its flour and water content and add the flour to the total flour and the water to the total water in the formula. These two approaches are equally accurate, but the second approach provides the more accurate representation of the dough characteristics, especially in regard to hydration. In the following table, I have used the second approach.

The rye sour is 100% hydration. That means that the amount of water in it is exactly equal to the amount of water (water = 100% of total flour.) So, 750 g of rye sour consists of 375 g of rye flour and 375 g of water. Therefore, for example, the total water in the dough consists of the 375 g from the rye sour plus the 240 g added to the final dough.

Total Ingredients

Wt (g)

Calculations

Baker's %

First Clear flour

500

Total flour =500+375=875. 500/875=57.

57

Rye flour

375

Total flour =500+375=875. 375/875=43.

43

Water (80-100ºF)

615

Water/Total flour=615/875=70

70

Sea salt

12

Salt/Total flour=12/875=1.4

1.4

Instant yeast

7

Yeast/Total flour=7/875=0.8

0.8

Total

1509

 

172.2

Now we can see that the original recipe makes 1509 g of dough. (Well, it is actually more because the weight of the caraway seeds and altus, if used, is not included in these calculations.) Adding up the Baker's percentages, you have 172.2. Think of this as meaning that the dough consists of 172.2 “parts,” 100 of which is flour, 70 of which is water, etc. Recall that these numbers represent the relative amounts of each ingredient.

Scaling the recipe

Now, let us assume you want to make Greenstein's Jewish Sour Rye, but you want to make 600 g loaves, and you want to make two of them. So you will need 1200 g of dough. 

Since you know your formula consists of 172.2 parts, to determine the weight of each ingredient needed to make 1200 g of dough, what you need for your calculations is the weight of each part. If the total is 1200 g, you get this by dividing 1200 g by 172.2 parts. This equals 6.97, rounded off. This number is called “the conversion factor.” Now we can calculate the amounts of each ingredient in 1200 g of dough. Weights are rounded to the nearest gram.

Total Ingredients

Baker's %

Calculations

Wt (g)

First Clear flour

57

57x6.97=397

397

Rye flour

43

43x6.97=300

300

Water (80-100ºF)

70

70.6.97=488

488

Sea salt

1.4

1.4x6.97=10

10

Instant yeast

0.8

0.8x6.97=6

6

Total

172.2

 

1201

 

What this way of representing the formula does not show is how much rye sour you have to build. However, we know from the original recipe that the weight of the rye sour is 1.5 times the weight of the First Clear flour (See the first table, above.) So, for the 1200 g of dough, we will need 1.5x397=595 g of Rye Sour. In the bread books written for professionals, for example, Hamelman's Bread and Suas' Advanced Bread and Pastry, the formulas have separate tables for “Total Dough” which takes the second approach described above and another for “Final Dough” which takes the first approach. You get the best of both worlds. The “Final Dough” would be as follows:

Final dough ingredients

Wt (g)

Baker's %

First Clear flour

397

100

Water (80-199ºF)

191

48

Sea salt

10

2.4

Ripe rye sour (100% hydration)

596

150

Instant yeast

6

1.4

Total

1200

 

Altus (optional)

1/2 cup

 

Caraway seeds

1 T

 

Cornmeal for dusting parchment

 

 

Cornstarch glaze

 

 

You can see that, while this representation of the formula is more helpful for making the final dough, the Baker's Percentages distort the ingredient proportions. They make the dough look like it has a lower hydration than it really does, and it makes the amounts of salt and yeast seem very high.

Baker's math is an invaluable tool. Once you understand the basic approach and scale a few of your favorite recipes, it becomes easy to use. After a while, if you use it regularly, it becomes intuitive. You will find yourself doing it in your head as you look at new recipes. You can use it for modifying recipes you want to tweak. It will make you a better baker. It is not yet known if it prevents senile dementia, but I bet it helps. I'll let you know, if I remember to.

Enjoy!

David

willchernoff's picture
willchernoff

I think i'm finally getting the hang of making french bread. I won't say my recipe/technique is perfect, but I finally feel confident enough to share bread with freinds. Here's some pictures of what I've been up to.


 


 


 


I've been enjoying these results, but I can't seem to get an even oven spring. That is, where I slash the dough either pops too much or too little while baking. Any ideas how to get a more consistent pop?


 


Details on what I actually do: http://wchernoff.wordpress.com/2010/07/24/feel-that-oven-spring/

dmsnyder's picture
dmsnyder

 


Questions regarding how to convert one kind of starter into another are frequently asked on The Fresh Loaf. The easy answer is to just take "a little bit" of seed starter and add enough flour and water to make a mixture of the desired thickness. This is fine and it generally works very well. However, sometimes a recipe calls for a precise hydration level levain and changing this, even a few percentage points, will make the dough consistency quite different from that intended by the formula's author. For those times, one needs to be more precise in making up the levain. 


To convert a starter of one hydration to a starter of another hydration - For example, if you have a 50% hydration starter and want to build a 100% hydration starter from it. 


 


Here's a general method for a precise conversion:


First, you need to know four things:


1. What is the hydration of your seed starter?


2. What is the hydration of your final starter?


3. How much of the total flour in your final starter comes from your seed starter?


4. How much (weight) final starter will you be making?


Second, you need to calculate the total amount of flour and the total amount of water in your final starter.


Third, you need to calculate the amount of flour and the amount of water in the seed starter.


Fourth, you can now calculate the ingredients of your final starter. They will be:


1. Seed starter


2. Flour (from seed starter plus additional)


3. Water (from seed starter plus additional)


 


So, let's see how this method works with some specific assumptions. 


The four things you need to know:


Assume you have a 50% hydration seed starter that you want to use. Assume you want to make 100 g of a 100% hydration starter. And assume you want the seed starter to provide 25% of the total flour in the final starter.


Note: Using "Baker's Math," Flour is always 100%, and all other ingredients are proportionate to the flour. So, in a 50% hydration mix, the water is 50% (of the flour, by weight). If hydration is 125%, the water is 125% (or 1.25 times) the flour.


To calculate the total amount of flour and water in your final starter:


Flour (100 parts) + Water (100 parts) = 100 g


So, the 100 g of starter is made up of 200 "parts." The weight of each part is calculated by dividing the total weight by the number of parts. So, 100 g /200 parts = 0.50 g.  This number is sometimes called "the conversion factor."


Then, since there are 100 parts of flour, its weight is 100 parts x 0.5 g = 50 g.


The total water in the final dough is 100 parts x 0.5 g = 50 g.


To calculate how much flour will come from the seed starter and how much will be added to make the final starter:


We now know that the total flour in the final starter will be 50 g. But we decided that 25% of this flour is going to come from the seed starter. This means that the seed starter must contain 50 g x 0.25 = 12.5 g of flour, and the flour added to this to make the final starter will be 50 g - 12.5 g = 37.5 g.


To calculate the total weight of the seed starter and the weight of water in the seed starter:


We now need to calculate how much seed starter it takes to provide 12.5 g of flour, and how much water is in this amount of seed starter.


If the seed starter is 50% hydration, it contains 100 parts of flour and 50 parts of water. We know then that the amount of water is 50 parts water/100 parts flour = 0.5  parts of the flour.  Since we already know that the flour has to weigh 12.5 g, then the water must weigh 12.5 x 0.5 = 6.25 g and the total weight of the seed starter is the sum of the water and flour or 12.5 g of flour + 6.25 g of water = 18.75 g.


To calculate the weight of water that must be added to the seed starter to make the final starter:


Now we can calculate how much water must be added to the seed starter to make the final starter. It is the total water in the final starter minus the water in the seed starter or 50 g - 6.25 g = 43.75 g.


 


Now we know "everything!" To make 100 g of 100% hydration starter, beginning with a 50% hydration seed starter, we would mix:


1. 18.75 g Seed Starter.


2. 37.5 g Flour


3. 43. 75 g water


 


This method can be used to build any amount of starter of any hydration using a seed starter of any (known) hydration. 


 


David


 


 

dmsnyder's picture
dmsnyder

I have read so many bread baking books and viewed so many videos on shaping boules, but I didn't really "get it" until I saw our instructor, Miyuki, do it in the SFBI Artisan I workshop I attended a couple weeks ago.


I will attempt to show what I learned in still photos with descriptions. I hope that viewing these and then reviewing some of the excellent videos available might help others who are struggling with this technique.


Mis en place







You will need:



1. a batch of fully-fermented dough



2. a lightly floured "board" on which to work.



3. a scale, if you are dividing the dough.



4. a bench knife or other cutting implement, if you are dividing the dough



5. prepared bannetons or a couche on which to rest the formed boules for proofing



 



 





Procedure



 





1. Weigh your dough






2. Divide it into equal pieces.



3. Pre-shape each piece gently, incorporating any small pieces of dough on the inside. 



4. Rest the pre-shaped pieces, seam side down and covered with plastic or a towel  on the board for 20-30 minutes.







5. Prepare your bannetons or couche for receiving the shaped boules.




 




6. After the pre-shaped pieces have rested, shape each as follows:






* Pick up the piece and turn it smooth side down.



* Gently fold the long ends together under the piece.



* Rotate the piece 90º in your hands, and fold the other two sides together.




* Place the piece on an un-floured board, smooth side up.



 



 




* Cup your hands around the piece, and gently drag it 3 inches or so towards you in such a way that the edge closest to you sticks to the board and is dragged under the dough, thus stretching the top of the piece into a tight sheath containing the dough.




 



Note the position of the markers before stretching



After the stretching, the marker at the apex of the boule is unmoved, but the one that was at about 40º North, is now about at the equator.




* Rotate the dough 90º and repeat. Do this 3-4 times until the bottom of the boule is relatively smooth and the whole boule has an unbroken, smooth sheath.




Note that there are no visible seams on what will be the bottom of the boule, after the procedure described.


 




* Place the boules in bannetons, smooth side down, spray with oil and place each banneton in a food-grade plastic bag to proof. (Alternatively, place the boules seam side down on a couch and cover with a fold of the couche, plasti-crap or a towel.)



 



 


Well, there it is. For me, being able to visualize the stretching of the "skin" of the boule between a fixed North Pole and a point on the side, using the board to "grab" the bottom of the boule as I dragged it towards me was the "aha moment." I hope it makes sense to others.




The goal (to form a tight gluten sheath) in forming other shapes is fundamentally the same, but the method is entirely different.



Comments and questions are welcome.





Happy baking!




David



 



 



 



 


 

mcs's picture

Baking Bread Videos

December 16, 2009 - 12:42pm -- mcs
Forums: 

Hey there everyone.  Well I'm emerging out of hibernation to tell you about my latest project.  Last spring I started working on a couple of instructional baking DVDs but I never finished them before the busy season hit.  Then when I got back to work on them this fall, I decided to re-shoot the whole thing and spend some more time on them. 


Well, I just got finished. 

gaaarp's picture
gaaarp

Like many people, I found TFL in my quest to learn how to make sourdough.  I had a starter going and was sure I had killed it.  The advice I found here gave me the knowledge and confidence to make a starter that I've been using for months now, with ever-better results.


Although there is a wealth of information here, there was no one source that detailed the method I used, which was based on Reinhart's "barm" in BBA.  Now that I have succeeded in making several starters, I've been thinking about making a video tutorial to walk through the process step-by-step, day-by-day.  My own experience and that of others here has taught me one thing:  sourdough starters don't read baking books, so they don't know how they are "supposed" to behave.  I could have been spared the angst, the wasted time, and of course, pounds of precious flour, if only I had known what to expect and what to look for. 


I don't have the technical part of video-making worked out yet, so I have decided to do a tutorial blog.  This will be a real test, as I am trying out a modified starter that I haven't made before.  It's still based on Peter's starter, but I have altered the amounts, and possibly the times, to suit my own fancy.  If all goes well, I will end up with a more reasonable (i.e., much smaller) amount of starter, and I will get there with much less wasted flour.


So here goes:


Day 1: 


Ingredients:  1/3 cup rye flour and 1/4 cup water


For the flour, I use stone-ground rye.  Nothing special, just what I got from the grocery store.  My water is tap water run through a filter.  Before I had he filter on my sink, I used bottled drinking water.


Mix the flour and water in a bowl.  It will be thick and pasty, kind of like the oatmeal that's left in the pot if you don't come down for breakfast on time. 


Day 1 - thick and pasty


Once all the flour is mixed in, put it in a pint-sized or larger container and cover with plastic wrap.  Leave it out on the counter. 


Day 1 - ready to rest


And that's it for today.


 


Day 2:


Ingredients:  1/4 cup unbleached AP, bread, or high gluten flour; 1/8 cup water


There should be little, if any, change in the culture from yesterday.  Again, I'm not really particular about the flour.  I would just recommend staying away from bleached flour.  I am using AP flour for this batch.


Mix the flour, water, and all of the starter from yesterday in a bowl.  It will still be thick but a little wetter than yesterday. 


Day 2 - still thick, but not quite as gooey


Put it back in the container (no need to wash it), press it down as level as you can get it, and mark the top of the culture with a piece of tape on the outside of the container. 


Day 2 - nighty night


Put the plastic wrap back on top, and you're finished.


 


Day 3:


Ingredients:  1/4 cup unbleached AP, bread, or high gluten flour; 1/8 cup water


Around Day 3 or 4, something happens that puts terror in the heart of the amateur sourdough maker:  they get a whiff of their starter.  When you check your starter on Day 3, you may notice a strange, and not at all pleasant, odor.  And unless you know better (which you will now), you'll swear something is drastically wrong.  In fact, I would venture to guess that that smell has been the ruin of more amateur sourdough growers than anything else.  It's an acrid, sour, almost rotten smell, and it's perfectly normal.  And rest assured, your new baby sourdough starter will soon outgrow it.  So, take heart, and press on.


You may also notice that your starter has begun to come to life.  It probably won't grow a lot, maybe 50%, but you will start to see bubbles, like these:


It is ALIVE!!!!!


Regardless of the amount of growth, stir down your starter, throw out about half (no need to measure, just eyeball it), and mix the rest with today's flour and water.  You will get a slightly more doughy-looking mass:


Is is soup yet?


Once it's well mixed, put it back in the container (still no need to wash), pat it down, and move your tape to again mark the top of the starter.


Let 'er rise


Put the plastic wrap back on the container, and take the rest of the evening off.  You worked hard today.


 


Day 4:


Ingredients:  1/4 cup unbleached AP, bread, or high gluten flour; 1/8 cup water


And now, a word about measurements.  If you bake regularly, or even if you've just been nosing around baking sites for a while, you are no doubt aware that the ingredients in most artisan bread recipes are listed by weight rather than volume.  I measure by weight for my baking and for maintaining my sourdough starter. 


You might wonder why, then, am I using volume measurements here?  Two reasons: first, I have tried to make this starter as simple to follow as possible -- no special tools, no monkeying around with the scales, just a couple of measuring cups and a bowl.  And, when it comes to starting a starter, the measurements aren't as critical as when you actually go to bake with it.  So for now, we're just using measuring cups. 


Today is another one of those days where novice sourdough starter makers often lose heart.  Your starter is now coming to life, and like most living things, it kind of has a mind of its own.  Up until now, we followed the clock, making our additions every 24 hours.  Now, we will be letting the starter dictate the timeframe. 


Before you do your Day 4 additions, you want to make sure your starter has at least doubled.  If it doubles in less than 24 hours, you should still wait until the 24 hour mark.  If it takes more than 24 hours, be patient.  Let it double.  It may take another 12 or 24 hours, or it may take longer.  Again, be patient.  It will double.  Just give it time.  Eventually, you'll end up with a nice, bubbly starter:


Day 4 - rising to the occassion


You can see that mine more than doubled.  But I still waited for 24 hours.  Once it doubles, throw out half of the starter, then mix the rest with the flour and water, and back into the bowl it goes:


Day 4 - Edwina, back in bowl


Replace the tape and plastic wrap.  Then wait for it to double.   It could take as little as 4 hours, or it may take more than 24 hours.  This time, you can move on to Day 5 at any point after doubling.  It's OK if you let it more than double; it's also OK to move on right when it hits the double mark.  So, hurry up and wait.


 


Day 5:


Ingredients:  3/4 cup unbleached AP, bread, or high gluten flour; 1/2 cup water


Once your starter has at least doubled, it's time for the final mix.


Day 5 - alive and kicking


Combine flour, water, and 1/4 cup starter in a bowl and mix well.  Transfer to a clean container with room for the starter to at least double.


Day 5 - final mix


OK, one last time, cover with plastic wrap and let it sit on the counter until it gets nice and bubbly.  Don't worry so much about how much it grows, just so that it's bubbly looking.  This will probably take around 6 hours, but, again, don't stress about the time.  Let the starter tell you when it's ready.


Day 5 - Congratulations, it's a bouncing baby starter!


When your starter gets bubbly, pat yourself on the back:  you are now the proud parent of a bouncing baby starter!  Put a lid or other cover on your container and put it in the refrigerator.  Let it chill overnight, and you can begin using it the next day.


Day 6 and beyond:


By today, your starter is ready to use.  The flavor will continue to develop over the next several weeks to month, so don't be disappointed if your first few loaves aren't sour enough for you.  I would still recommend beginning to bake with it right away, especially if you have never made sourdough bread before.  That way, you can hone your skills while your starter develops its flavor.


Feeding your sourdough:  If you keep your sourdough in the fridge, you only have to feed it about once a week.  And you can minimize your discards by keeping only what you need and feeding it when you want to bake with it.  I recommend a 1:1:1 (starter:flour:water) feeding, which means each feeding includes an equal amount, by weight, of starter, flour, and water. 


Start by weighing your starter, subtracting the weight of your container.  Then add an equal amount of flour and water directly to the container.  So, for example, if you have 100 grams of starter, you would add 100 grams each of flour and water.  If you feed your starter right out of the fridge, as I do, warm your water to lukewarm (90 - 100 degrees F).  After you mix in the flour and water, leave it out on the counter for a few hours, then put it back in the refrigerator.  It's best if you feed your starter a few days before you intend to bake with it.


To illustrate, here is an example of my feeding routine, starting with the Day 5 starter and assuming that I finished making the starter on Friday night:



  • Saturday morning, I take out what I need to bake bread (2/3 cup using my normal sourdough bread recipe) and return the rest of the starter to the refrigetator.

  • Wednesday of the next week, I get out the starter, weigh it, and add equal amounts of flour and water in a 1:1:1 ratio, as outlined above.  My goal here is to build up as much starter as I need to make bread on the weekend, and enough left over for my next build.  It's OK if I have more than I need to bake with.  If I don't think I'll have enough after a 1:1:1 build, I will increase my ratio of flour and water, maybe to 1:2:2 or 1:1.5:1.5.  In that case, I will let it sit out until it almost doubles before returning it to the fridge, which might take a bit longer, as I'm using less starter relative to flour and water.

  • Friday night or Saturday morning, I again take out what I need to bake with and return the rest to the fridge, to be fed again mid-week.


This is just an example of how I keep my starter.  You can feed yours more often if you bake more than I do.  It's also OK to let it go more than a week between feedings.  If you do that, though, you might want to feed it a few times before you bake with it.


So, that's it.  Hopefully I've unravelled some of the mystery of sourdough starters and given you the confidence to try one yourself.  Good luck, and let me know how it works out for you!

mcs's picture

the latest video from The Back Home

August 29, 2008 - 7:10pm -- mcs
Forums: 

The Fresh Loafers, This is the latest video where I'm working with some higher hydration (68%) doughs. Both of the breads are 'originals', and if you'd like to see the recipes you can probe around here for them or email me at the bakery. Anyway, I hope you like it. I decided to forego music this time and just add commentary. Nothing witty, strictly business.

-Mark
http://TheBackHomeBakery.com

 

 

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