This question occurred to me today, as I was thinking about my days as a bustling barista at Starbucks, clinking those standard, bar-style shot glasses around (on a typical day one or two of them would break).
One ounce is hardly anything… so (I figured) one “shot” must be more than that.
Sure enough, the general consensus on the interwebs (the most dependable source of information in the world, of course) is: A standard shot is about one and a half (1.5) ounces.
Variations on the “shot”:
- A double-shot = 3 ounces.
- A pony shot (either for aged liquor or if your barista is clumsy) = 1 ounce.