I have a wash of 5 litres, but I am not certain how much citric acid to use in it. It is only made up by pure white sugar, water and bakers yeast.
I looked through the great guide for making a sugar based wash. It said:
To get a pH of 5 use 0,01 grams i a 5 l wash. Only 0,01 grams?
Underneath it says:
Wal writes ...
Wine makers aim for a pH of 3.5 which equates to 0.6% acidity and which is equivalent to 6g of citric acid/litre of water, or 2 lemons/litre of water.
(1 lemon is roughly equal to 3g of citric acid or 1/2 tsp.)
A pH of 5.0 equates to 0.4% acidity and is equivalent to 4g of citric acid/litre of water, or 1 large lemon/litre of water.
1.2g of citric acid raises the acidity of 1litre by 0.13%.
i.e. 1tsp. (2lemons) raises acidity of 5litres of mash by 0.13%
Since a pH of 5,0 needs 4g of citric acid per litre of water, should I use 4x5=20 grams of citric acid on my 5l ?