How to Clean Stasher Bags: Remove Stains and Odors Safely

Quick answer

Clean Stasher bags by hand with warm water, mild dish soap, and a soft sponge, then air-dry them completely before storing. For stubborn stains or odors, make a paste of baking soda and water, apply it to the affected areas, let it sit for 15–20 minutes, and rinse thoroughly. Avoid abrasive scrubbers and harsh chemicals that can damage the silicone.

Why silicone bags need a different cleaning approach

Silicone is non-porous, but it can still hold onto food smells and colors if not cleaned properly. Unlike plastic, silicone is heat-resistant and flexible, so you can use warm water and gentle friction without worrying about melting or cracking. However, oily residues and strong pigments like turmeric or tomato sauce can seep into microscopic surface imperfections if left too long. That's why a consistent routine matters more than occasional deep cleaning.

Everyday cleaning: the two-minute routine

After each use, empty crumbs or liquid, then wash the bag inside and out with a drop of mild dish soap and warm running water. Use your fingers or a soft bottle brush to reach corners and the seal area. Rinse until no suds remain. If you're short on time, you can place the bag in the dishwasher on the top rack—but check your bag's specific care instructions first, as not all silicone bags are dishwasher-safe. Stasher bags are generally dishwasher-safe, but always confirm on the product page.

Removing stains from silicone bags

For colored stains, mix two parts baking soda with one part water to form a thick paste. Rub it onto the stained areas with your fingers or a soft cloth. Let it sit for 15–20 minutes, then rinse and wash as usual. For really stubborn stains, you can also try a paste of baking soda and lemon juice, but avoid leaving acidic mixtures on the silicone for more than 30 minutes. Never use bleach or chlorine-based cleaners, as they can degrade silicone over time.

Eliminating odors from Stasher bags

If your bag smells like last night's curry, start by washing it thoroughly. Then, sprinkle baking soda inside, close the bag, and let it sit overnight. In the morning, shake out the baking soda and rinse. For a quicker fix, soak the bag in a solution of one part white vinegar to four parts water for 30 minutes, then wash and dry. Avoid using essential oils directly on the silicone, as they can leave a residue that transfers to food.

Drying and storing your Stasher bags

Silicone bags must be completely dry before you store them; trapped moisture can encourage mold or mildew. After washing, shake off excess water, then prop the bag open upside down on a drying rack or over a utensil. You can also wipe it dry with a clean towel. Once dry, store bags flat or loosely rolled—avoid folding them tightly, which can crease the silicone and weaken the seal over time.

Step-by-step: deep clean your Stasher bags

1. 1. Prep and pre-rinse: Empty any food remnants and rinse the bag with warm water to remove loose particles. Turn the bag inside out to expose all surfaces. Common mistake: skipping the pre-rinse, which can make the wash water greasy and less effective.
2. 2. Wash with mild soap: Apply a small amount of mild dish soap to a soft sponge or bottle brush. Gently scrub the interior, exterior, and the seal area. Pay attention to corners where residue can hide. Checkpoint: avoid abrasive scrubbers like steel wool, which can scratch the silicone.
3. 3. Target stains and odors: For stains, apply a baking soda paste and let it sit for 15–20 minutes. For odors, sprinkle baking soda inside, close the bag, and leave overnight. Rinse thoroughly afterward. Common mistake: using bleach or harsh chemicals, which can damage the silicone and leave harmful residues.
4. 4. Rinse and dry completely: Rinse the bag under warm running water until no soap residue remains. Shake off excess water and air-dry the bag upside down on a rack or with a towel. Ensure it's fully dry before storing. Checkpoint: if you smell any soap or baking soda, rinse again—leftover residue can affect the taste of food.

Products that help with cleaning and storage

• Pet Wet Food Stretch Lids: Pet Wet Food Stretch Lids are made of platinum food-safe silicone and securely grip onto pet food cans, small bowls, and jars (glass, ceramic, metal!) to keep dog food fresh for longer whether at home or on a trip. These lids are a practical example of how silicone can be used for airtight sealing, similar to how Stasher bags keep food fresh. They also show that silicone is easy to clean and reuse, reinforcing the care tips in this guide.
• Gallon Bag: The Stasher Gallon Bag is made with Stasher's signature pure platinum silicone and features enhanced convenience and a more robust design. This bag is a larger option in the Stasher ecosystem, and the same cleaning principles apply. Knowing it's made of platinum silicone reassures you that it can handle repeated washing and stain removal without degrading.