Tea is relatively forgiving, and rarely spoils as long as it's stored properly. Old tea may simply be less flavorful and fresh than new tea, and will brew up a weaker cup with a stale flavor. In this sense, tea doesn't actually have an “expiration date” after which it will be unsafe to drink.

Is it OK to drink tea past its expiration date?

If the tea has been stored correctly away from light and moisture then it will be OK to consume however not at its best. Tea past its due date may manifest as having a stale dull taste, with little life to the brew. If however there is any doubt and mould is suspected please discard immediately.

How long is tea good for after expiration date?

In short, both tea leaves and tea bags retain good quality for about 6 to 12 months past the best-by date.