See Sourdough Bread for the context for these formulae.
|100% wholewheat sourdough||White sourdough||50/50 rye sourdough|
|Internal temperature of loaf when ready||88C||88C||98C|
Formulae that I currently make. These are descriptions, not prescriptions.
All percentages are in terms of the total weight of flour. In particular, the starter is expressed as weight of flour in starter / total weight of flour in the loaf, and the sponge is expressed as the total weight of flour in the sponge (including that in the starter) / total weight of flour in the loaf. I feel like the sponge will develop better if it’s at 100% hydration, but that reduces the water in the rest of the dough which makes autolyse less effective, combining the starter and dough more difficult and sometimes results in lumpiness. So I now make the sponge at the same hydration as the overall loaf.
Starter is fed with wholewheat at 100% hydration the night before. I use 50g of starter in the sponge, so there is a minimum of 25g of wholewheat in every loaf. Sponge is made in morning and left covered until risen (3-5 hours). Flour and water for main dough mixed and left to stand 20 minute before adding sponge and salt. Sponge hydration == main dough hydration. Once mixed, left to stand about 20 mins, 3 x stretch and fold every half hour, final time form into loaf, put in brotform, store in fridge until morning. Baked on hot griddle with water in oven
For 50/50 rye it’s a combination of kneading and stretch and fold.
The baking times quoted are for loaves based on 600g flour.