pre-measuring the dry ingredients in bulk?
I have an Italian style bread that I make on a regular basis. To make life easier, I pre-measure the dry ingredients that I use to make the preferment. So into each of ten small zip lock bags, I'll measure out 65g bread flour, 37g corn meal, 1/4 tsp IDY, etc. Then the night before I make the bread, I'll just dump one of these bags into 200g of water to sit overnight.
This has been working fine, but I was wondering if I could extend my laziness a bit. Rather than measure each ingredient ten times, could I simply measure ten times as much into a larger container, mix it up, then divide it into ten portions?
I understand that mixing it thoroughly would be critical, but am I asking for trouble here? Once completely mixed together, do dry ingredients like to settle? Am I likely to get a much larger ratio of flour to cornmeal in the first baggie as in the last?