Plastic containers absorb odors because they are porous; glass and silicone are less prone.
- Use baking soda, vinegar, or sunlight to remove persistent smells.
- Prevent odors by cooling food, using glass for strong foods, and drying containers completely.
Why do my food storage containers smell?
Plastic containers are slightly porous, so they trap odor molecules from strong foods. Tomato sauce, garlic, onions, and fish are common culprits. Heat can worsen the problem, as hot food opens the pores. Even glass lids with rubber seals can absorb smells. The odor often comes from the lid's seal, not the container itself.
How to get rid of the smell from food storage containers
Start by washing the container with hot, soapy water and a non-abrasive sponge. Then, fill it with a paste of baking soda and water, and let it sit for 15 minutes. Rinse and air dry. For stronger odors, soak the container in a solution of one part white vinegar to three parts water overnight. Another method is to stuff crumpled newspaper inside and seal the lid for a day. Sunlight also helps; place the container in direct sun for a few hours. If the smell persists, try a dilute bleach solution, using one tablespoon of bleach per quart of water, and rinse thoroughly.
How to prevent food storage containers from smelling
Cool hot food before storing it in plastic containers. Use glass containers for strongly scented foods like curries or spaghetti sauce. Always wash containers promptly after use, and dry them completely before storing. Store containers with the lids off to allow air circulation. Avoid using plastic containers for long-term storage of pungent foods. Consider using silicone or glass containers, which are less porous.
When should you replace food storage containers?
Replace containers if they are cracked, warped, or have deep scratches, as these harbor bacteria and odors. If a container retains a smell after several cleaning attempts, it's time to toss it. Also, replace any container that has a stained or degraded rubber seal. Most plastic containers last about one to two years with regular use. Glass containers can last much longer but may need new lids.
Can you use professional odor removers on food containers?
Yes, but choose products safe for food contact. Look for enzyme-based cleaners designed for kitchen use. Avoid harsh chemical sprays that can leave residues. Alternatively, use a food-safe odor eliminator like activated charcoal, which absorbs smells without chemicals. Place a small piece in the container overnight, then wash. Always rinse thoroughly before using the container again.