mcdonald_ajr
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I've seen this question raised a few times, but can't find the answer.
I understand the need to treat all the water (mash and sparge) to get the alkalinity down, so I use the total liquor volume to calculate the amount of acid needed.
But to calculate the amount of gypsum and calcium chloride to add, should I use the total liquor volume, or the volume of liquor post boil?
I lose quite a lot of volume during the boil. To keep the maths simple, say I start boiling 30 litres and end up with 20 litres after 90 minutes. Presumably, if my desired wort should have say, 100ppm chloride, then if my liquor has 66ppm, it will be up to 100ppm after boiling a third off it?
Any thoughts?
Thanks, Anthony
I understand the need to treat all the water (mash and sparge) to get the alkalinity down, so I use the total liquor volume to calculate the amount of acid needed.
But to calculate the amount of gypsum and calcium chloride to add, should I use the total liquor volume, or the volume of liquor post boil?
I lose quite a lot of volume during the boil. To keep the maths simple, say I start boiling 30 litres and end up with 20 litres after 90 minutes. Presumably, if my desired wort should have say, 100ppm chloride, then if my liquor has 66ppm, it will be up to 100ppm after boiling a third off it?
Any thoughts?
Thanks, Anthony