make 8 x 210g Baguettes with poolish
MAKE POOLISH THE DAY BEFORE
250g organic bread flour
250g bottled/filtered water
big pinch yeast
Mix into as thick batter
Cover with cling film
Leave out over night for 16-24 hours on the kitchen worktop
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MAKE DOUGH
500g pre-ferment poolish
400g filtered/bottled water
750g organic bread flour
7g fast action yeast
18g salt
1650g total
Add poolish to large bowl
Add water and mix with the poolish until smooth
Add the dry ingredients
Mix into rough dough
Tip onto work surface
Knead lightly
Place into lightly oiled container
Autolyze/rest for 30 minutes
Do 2-3 stretch and folds at 30 minutes intervals
The dough is ready when it looks like a large pillow
Tip out onto well floured work surface
Weigh into 210g pieces
mould into small rounds
place into container
Rest for 10 minutes
Mould into loose oblong shapes
place into container
Rest for 15 minutes
Shape into baguettes
Place seam side up in a well floured couche
Cover and leave to rise for 45-60 minutes
check at 30 minute intervals
Lightly oil baguette trays
Gently lift the dough from the couche using board
Place the dough seam side down in baguette trays
Score the dough
Bake with steam
at 230C / 210C fan for 30 minutes
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bakers percentages
Total four = 750 + 250 = 1000g flour
Total water = 400 + 250 = 650g water
650/1000 = 0.65*100 = 65.0
bakers % = 65% hydration





I have always used either filtered or bottled water for my baking.
All bakeries I have worked at use filtered water.
The chlorine and chloramine in tap water are not good for natural yeast and will kill it. Not that good for drinking either.
I used to keep fish some 20-30 years ago.
The process back then to top up your aquarium, was to fill a bucket with tap water, and leave it for 24 hour for the chlorine to evaporate.
This changed with the introduction of chloramine and you now need specialist chemicals to remove the chloramine.
The introduction of chloramine into our tap water here in the UK came about 30 years or so ago, when a London hospital was overwhelemed with its patients dying of water bourne diseases.
Initially they could not work out what was causing it. They eventually found that the culprit was the water storage tank on the roof of the Hospital that supplied its water. The stagnant water had developed all sorts of bacteria and viruses.
So they introduced chloramine.
Generally though, I do not trust any privatised water company here in the UK. They are more concerned with profits than providing clean water.
I personally have a black staining sludge forming in my toilet cistern and in the outlet of my taps. It is not clean water.
So I always only use filtered water for everything.