When to toss: Every few years for storage containers, immediately for disposable packaging
Why toss it: Plastic containers, especially those that are meant to be disposable, were not meant to be used forever. Plastic breaks down over time, which can cause chemicals to leach into your food. Check for signs of wear after each use, and toss any containers that appear discolored, warped, or cracked. You should also get rid of any containers that are missing a lid or have an unusual smell. Always dispose of single-use food packaging, such as yogurt containers or margarine tubs, immediately after you’re finished with the product.
Before you toss plastic containers in the garbage, check to see if it’s recyclable by looking for the stamped number inside the triangular recycling logo, usually found on the bottom of containers and bottles. Most recycling centers take plastic Nos. 1 and 2—which include many beverage bottles, milk jugs, peanut butter jars, and other containers—but it’s best to check with your community’s program to verify which types of plastic they can accept.