An unopened container of yogurt made with whole milk lasts up to three weeks past its printed expiration date, says EatbyDate.com. An unopened container of low-fat yogurt lasts up to two weeks past its printed expiration date.
Unopened containers of yogurt cups with fruit and yogurt drinks last up to 10 days past their printed expiration dates. Greek yogurt lasts up to two weeks past its expiration date. Frozen yogurt lasts up to three months under proper freezing conditions. An opened container of yogurt lasts no more than one week past its printed expiration date under normal refrigeration. Yogurt that has mold must not be consumed.