Again, not wanting to open another thread - I will also refrain from boiling, I was always tempted to boil extract kits, not really sure why, I thought it altered the characteristics of the actual extract in some way (i.e. not just for isomerisation of the hops or sterilisation), but if you guys reckon it's not necessary...
But my other question is what is with the relatively large amount of dextrose in these kits? I am a bit ignorant about that stuff, but I thought if we are making beer from malt sugars then chucking these other sugars in, especially at a rate of 1 kg to every 1.5kg of extract, as in most Brewferm kits is surely defeating the object?
Hm, just to clarify - this kit as advertised on UK sites (can't post links) requires 500g of brewing sugar, while the kit as advertised in my country gives "1.5kg of extract + 1kg dextrose" in the ingredients list, but then later goes on to say that 500g of sugar are added in the primary stage. Not sure what's going on and why the discrepancy, but a 1kg of dextrose to 1.5kg of extract sounds an awful lot to me, and 500g still seems like it would negatively affect the taste - am I missing something?