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Sourdough Conversion; Bread, Farmhouse White <R T> with Pre-ferment

Leslie Lim Pheng Siang <leslielim@fn.com.my>
Tue, 22 Feb 2011 09:24:43 +0800
v111.n009.7
Hi everyone,

Now that Stephen brought up the pre-ferment topic, this is a good example.

You could treat the amount of sourdough starter used in the original 
recipe as a pre-ferment.  It is just a matter of adding the 
appropriate amount of yeast to a portion of the flour (about 1/3) and 
water.  The reason behind this is to allow the yeast to work on the 
flour early and slowly to coax the wonderful wheaty flavour and 
acid.  I would normally add 1/8 teaspoon or a pinch of yeast to 2 
cups of flour (say total flour is 6 cups) and 1-1/4 cups water for a 
12-hour rise.  This combination would be called a 
sponge/poolish.  It's like a wet batter.

Some bakers also make a biga. It is a stiff dough with this 
combination say 2-3 pinches yeast, 2 cups flour and 1/4 water.  Let 
rise 16 hours.


Now back to the actual discussion.

Try changing these instead:

Use pre-ferment: Mix 1/2 cup flour, 1/4 cup water and one granule of 
instant yeast.  Cover and let ferment at room temperature for 12 
hours or until mixture is full of bubbles and smell good.

Use 1-1/2 tsp salt and 2 tablespoon of sugar instead.

Omit the egg.

After the pre-ferment is ready, continue adding the rest of the 
ingredients (including the original amount of yeast) and continue as 
usual with the recipe. Remember to minus 1/2 cup flour from your 
final dough. You could reduce the yeast amount to 1/2 teaspoon if you 
are not using a bread machine. I have never used a bread machine 
before so I can't say much about it.

Hope this is helpful.  Happy baking!
Leslie