* When ordering a beer, knowing which brand you want to order (and not just saying "une bière s'il vous plait"), should one use the feminine article *une* because *bière* is a feminine word in French or does it instead depends on the brand name itself? For example, do you say "un Erdinger" or "une Erdinger"? (Erdinger is just taken as example, same question holds had I used as brand instead Heineken, Bitburger, Leffe and so on).
* Finally in case of doubt, what's the best bet, to go with *un* or *une*?