How to Clean a Can Opener

Can Openers: One of the Most Bacteria-Laden Kitchen Tools

Studies consistently rank can openers among the most contaminated tools in the kitchen. The cutting wheel and gear mechanism come into direct contact with food and can juices, and most people never clean them. Regular cleaning is essential for food safety.

What You'll Need

• Small brush or toothbrush
• Non-scratch scrub sponge
• Mild dish soap
• Warm water
• White vinegar
• Microfiber cloth

After Every Use: Basic Cleaning

1. Rinse the cutting wheel and gear under warm running water immediately after use
2. Apply dish soap to a toothbrush
3. Scrub the cutting wheel thoroughly — this is where food residue and bacteria accumulate most
4. Scrub the gear mechanism and the area around the wheel
5. Rinse thoroughly
6. Dry completely — the cutting wheel and gear rust quickly if left wet

Is the KitchenAid Can Opener Dishwasher Safe?

Many manual can openers including the KitchenAid model are dishwasher safe — check the manufacturer's instructions. Place in the utensil basket. The dishwasher is very effective at cleaning the cutting wheel and gear. However, hand drying after the dishwasher cycle prevents rust.

Deep Cleaning the Cutting Wheel

The cutting wheel accumulates a layer of dried food residue and rust over time. For a deep clean:

1. Soak the cutting end in white vinegar for 10–15 minutes
2. Scrub the wheel and gear with a toothbrush
3. Rinse thoroughly and dry immediately
4. Apply a tiny drop of food-safe mineral oil to the wheel and gear to lubricate and protect against rust

Removing Rust from the Cutting Wheel

Rust on the cutting wheel is a food safety concern — rust particles can contaminate food. Soak in white vinegar for 15 minutes, scrub with a toothbrush, rinse, and dry. If rust is extensive, replace the can opener.

Final Thoughts

Clean your can opener after every use — it takes 30 seconds with a toothbrush and warm soapy water. The cutting wheel is the critical area. Dry completely to prevent rust, and apply a drop of mineral oil occasionally to keep the mechanism smooth.