What measure is a nip?
If you want to get very technical and scientific, a pinch is generally defined as 1/16 teaspoon. While there’s some debate about this, The New Food Lover’s Companion considers a pinch to be 1/16 tsp, while a dash is “somewhere between 1/16 and a scant 1/8 teaspoon.” Not all cookbooks agree. So there’s your answer.
How much is a pinch?
It dates back to the days of nip pourers (the funny little spouts on the top of spirit bottles which you don’t see very often now days) which were designed to pour out a 15ml measure of spirit. So, a double is 2 nip pours or 30mls which is one standard drink.
How much is a nip in baking?
Number of standard drinks by alcohol type