How to Clean Glass Food Containers (Including Lids and Seals)

Glass food containers are more hygienic than plastic — they don't absorb odors or stains and are easier to clean thoroughly. But the lids and rubber seals need special attention to stay truly clean.

What You'll Need

• Mild dish soap and warm water
• Amazon Basics Non-Scratch Sponges
• Holikme Bottle Brush Set — narrow brushes clean lid grooves and seal channels
• Baking soda (for stubborn stains)
• White vinegar (for mineral deposits and odors)
• M MCIRCO Glass Food Storage Containers — with upgraded snap locking lids, microwave and dishwasher safe

Cleaning the Glass Container

Everyday Washing

1. Wash with warm soapy water and a non-scratch sponge after every use.
2. Scrub all interior surfaces including the bottom corners.
3. Rinse thoroughly and dry or place in the dishwasher.

Glass containers are dishwasher safe — place on either rack. The high heat of the dishwasher sanitizes effectively.

Removing Stains from Glass Containers

1. Make a paste of baking soda and water.
2. Apply to the stained area and let sit for 15–20 minutes.
3. Scrub with a non-scratch sponge and rinse.

Unlike plastic, glass doesn't absorb stain pigments — most stains sit on the surface and come off easily.

Removing Mineral Deposits (Cloudiness)

1. Fill with equal parts white vinegar and water.
2. Let soak for 15–30 minutes.
3. Scrub and rinse. The acid dissolves mineral deposits and restores clarity.

Cleaning the Lids and Rubber Seals

This is the most important and most overlooked part. Lids and rubber seals trap food residue, grease, and bacteria in grooves and channels that a sponge can't reach.

Step 1: Remove the Rubber Seal

Most glass container lids have a removable rubber seal. Pop it out and wash it separately — food and mold hide underneath it.

Step 2: Scrub the Lid Grooves

Use a narrow bottle brush to scrub inside the lid channels and grooves where the seal sits. This area accumulates grease and food residue that causes odors.

Step 3: Wash the Rubber Seal

Wash the rubber seal with warm soapy water and a small brush. Check for mold — black spots on the seal mean it needs replacing.

Step 4: Dry Completely Before Reassembling

Make sure both the lid and seal are completely dry before putting them back together. Trapped moisture causes mold growth under the seal.

Frequently Asked Questions

Can glass food containers go in the microwave?

Most glass containers are microwave safe — check the bottom for the microwave-safe symbol. Remove the lid before microwaving unless it's specifically labeled microwave safe.

How do I remove the smell from a glass container?

Glass doesn't absorb odors like plastic, so smells usually come from the lid or seal. Remove and wash the seal separately, scrub the lid grooves with a bottle brush, and soak in a white vinegar solution for 30 minutes.

My glass container lid has black spots. What is that?

Black spots on the rubber seal are mold. Remove the seal, scrub with a brush and dish soap, and soak in a diluted white vinegar solution for 30 minutes. If mold persists, replace the seal or the lid.