In the bustling aisles of a grocery store — amid fresh produce and neatly arranged shelves — exists a variety of food products, each with its own story and timeline. This silent countdown begins the ...

At-home COVID-19 tests have become more readily available in recent months, and many people have boxes of unopened, unused tests around the house — perhaps free tests from the federal government ...

A quirk in the regulatory process for home tests can mean the real expiration date doesn’t always match what’s on the box. Credit...Danielle St. Laurent for The New York Times Supported by By Tara ...

I’m guilty of keeping sunscreens for many seasons — there’s a bottle of Coppertone I’ve had for at least four years, but recently I started wondering, Does this stuff expire? It would make sense, ...