Bought a few cans of Coopers LME to add to various brews. Someone elsewhere on this forum (can't find the thread) said that it needs a boil; is this correct?
Technically you can get away without doing a boil. . . . Personally the results I've had with a short boil (~15 Minutes) have a significant difference on quality. I've used up to 3.5Kg in 10L of water, so it can be a concentrated boil.