The Fresh Loaf

A Community of Amateur Bakers and Artisan Bread Enthusiasts.

Fermentation temperature+flavor

AZ Chuck's picture
AZ Chuck

Fermentation temperature+flavor

   What gives the best flavor? 16 hour rise at 70 deg or 2 days of very slow cold dough at 40 deg.  It is that time of year when my kitchen is 80 to 110 deg. It makes it hard to get a slow rise.

amberartisan's picture
amberartisan

For baguettes, I know a professional artisan baker who bulk retards his dough (21 hours) with .2% IDY, 75% Hydration, then benches them, shapes them, and retards them again for the final rise. It makes a great baguette with a sweet flavor and complex, slightly acidic, with good open cell structure and a remarkable tenderness. The other thing is that the dough is super extensible at the time of shaping- a big plus!

dabrownman's picture
dabrownman

you are looking for.

Her is a chart that shows the reproductive rates of LAB vs yeast in a SD culture depending on temperature.

Reproduction Rates of LAB and YeastL/Y 
T(°F)T (°C)L. SF IL. SF IIYeastRatio
     36        20.0190.0160.0053.787
     3940.0260.02230.00833.1466
     4360.0350.03120.01342.6335
     46        80.0470.0430.0212.222
     61      160.1440.1500.1141.265
     64      180.1870.1980.1631.145
     68      200.2390.2590.2251.064
     72      220.3010.3320.2951.021
     75      240.3740.4160.3651.024
     79      260.4530.5080.4141.094
     82      280.5350.5980.4171.284
     86      300.6090.6720.3461.760
     90      320.6580.7060.2023.255
     93      340.6570.6710.05013.127

At 40 F the LAB are reproduce about 3 times faster than yeast but bat a rate 15 time less than they do at 72 F. So long cold ferments favor a more sour bread.  Room temperatures favor a less sour bread and 93 F really favors sour.

I too live in AZ and look forward to this time of year when we can do counter the top work at 88-92 F  and the frige retards at 36 F since we much prefer a more sour bread.

Happy baking

AZ Chuck's picture
AZ Chuck

Thanks guys. I haven't had enough experience to prefer a certent flavor yet. I like then all, just a lot of it.

I got one going now that I used a 25% sourdough and I got a 16 hour rise at 40 deg.. we'll see how it goes.

 

 

baybakin's picture
baybakin

25% sourdough meaning?

There was a thread recently about this topic, it can mean 3 different things, and each are totally different.

1. 25% total flour weight prefermented (this is pretty high)
2. 25% flour weight prefermented using bakers percentages (lower amount)
3. 25% starter using bakers percentages (lower)

Thread is here: http://www.thefreshloaf.com/node/38821/percent-levain-dough

AZ Chuck's picture
AZ Chuck

You ask hard questions for an old timer to figure out.

Sourdough feed=1/4 cup water, ½ cup flour

dough=6 oz water

           ½ cup starter

           ¼ tsp salt

           1 ½ cup flour ???

The bread just can out of the over. Baked on stone at 450 deg, sprayed 15 min, baked 50 min.

I got a good oven pop and nice crumb.

Boy, was it good.