To which biological family does the Arctium lappa belong: Asteraceae, Araliaceae, Amaranthaceae or Dennstaedtiaceae?

What style of beer, originating in England, was historically brewed with extra hops to survive the long sea voyage to British India?

What type of yeast, known for fermenting at cooler temperatures (45-55°F), is used to produce lagers?

What scale, ranging from 0 to over 100, measures the bitterness of beer contributed by hops?

In brewing, what term describes the liquid extracted from the mash before it is boiled with hops?

What is the name of the process where beer is naturally carbonated by adding a small amount of sugar before bottling?

What compound causes the common beer off-flavor often described as tasting like green apples?