Ne nu bet tai vienok visvien durniai tie aludariai... "> https://en.wikipedia.org/wiki/Brewing#Brew_kettle_or_copper > > Copper is the traditional material for the boiling vessel, because copper > transfers heat quickly and evenly, and because the bubbles produced during > boiling, and which would act as an insulator against the heat, do not > cling to the surface of copper, so the wort is heated in a consistent > manner