Ale or lager? How yeast and temperature make the difference

Ale or lager? It isn't colour, strength or bitterness. It's the yeast and how warm you keep it. Ale yeast likes mild temperatures and makes fruity, spicy flavours. Lager yeast works cold and slow, then rests near freezing for weeks.

Drag the temperature slider to see which yeast is happy where, what that does to flavour, and why a few styles refuse to pick a side.