The Food Lab: Better Home Cooking Through Science

Any carton of eggs that displays the United States
Department of Agriculture (USDA) shield on it was packed
according to USDA weight standards, which define six
different classes, as shown in the chart below.

WEIGHT

CLASS

MINIMUM

WEIGHT  PER

EGG

Jumbo 2.5 ounces

Extra large 2.25 ounces

Large 2 ounces

Medium 1.75 ounces

Small 1.5 ounces

Peewee 1.25 ounces

In  reality,    you’re  unlikely    to  see small   or  peewee  eggs    at