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Beer and Wine are vegan drinks.
(lemmy.ml)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
No they aren't, unless specified. A lot is isinglass (spelling?) To clarify it, which is fish parts.
Isinglass is not used very much outside breweries trying to do really traditional British styles, because it's finicky and there are better and cheaper options. I'd say that the most common thing making beer non-vegan is adding adjuncts like lactose in milk stouts.