Originally Posted by chgoeditor

I just looked on Costco Instacart and he probably bought the farm raised 13-15 white shrimp, which comes in 4 pound bags. (@gaobest, always buy wild, not farm-raised!) Also, 13-15s may look impressive, but I find them to be too big for most cooking. Sure, they look great in a shrimp cocktail, but the 31-40s are better for most recipes.

(For those who wonder, the numbers refer to how many are in a pound. So lower numbers, like 13-15, are huge, while 31-40s, for example, would be about half the size.)