I always boil with the lid off my kettles (2 pots). But I've been thinking lately about the design of commercial kettles. It seems that to more closely match a commercial boil, I should put about a ...
How do you use it? What does it do? Do you pass finished wort through it hot or cold?
Is it worth using? I was thinking of getting one to use on my first fermenter for a german weissbier so that the yeast flavour and aroma is more present in the final result. By how many degrees does ...