A “standard drink” is a measure of pure ethanol consumed. One standard drink represents 10 grams of pure ethanol.
This means that based on the alcohol percentage of certain drinks, the “standard” size changes. The important thing to be aware of is to think of it as a Standard Drink because the size that equals 10 g of ethanol isn’t necessarily the standard size that is served. This is why it’s a good habit when asking “how many glasses of _______ do you drink” to ask about the size of the glass.
This design was actually originally made for an event, but I’m reposting it here because it’s useful and I like it and I haven’t had a chance to draw anything new recently.