Thank you very much, Mark.
I played around with the numbers again, thinking exactly what you said about salts not boiling off, and came back with roughly half the amounts.
Here in Thailand gas is cheaper than grain.
Dear all,
I was hoping someone could take a look at this for me. I use RO water and got these numbers from the water calculator on Jim's Beer Kit.
The problem is that I am doing a two hour boil with 20-25% evaporation. I have calculated that I need just under 24 litres of water in total...