How to Clean a Wooden Cutting Board

Can staining be a sign of bacteria buildup?

Actually, yes. Unlike the deep scratches or knife marks of a well-used board, staining shouldn't be looked upon for aesthetic appeal. "If the board has visible stains or strong odors, it indicates that bacteria or mold could be present, making sanitizing necessary to eliminate any potential hazards," cautions Civlak. "Furthermore, periodic deep cleaning, even with daily cleaning routines, is recommended to ensure that deeply embedded bacteria are killed. This deep cleaning could be done weekly or bi-weekly, depending on how frequently the board is used. By maintaining a routine of daily cleaning and periodic sanitizing, you can make sure that your wooden cutting board remains a food-safe surface, a hygienic kitchen tool, and in good condition for longer."

How (and When) to Clean Your Wooden Cutting Boards

1. Daily Cleaning

• Rinse Immediately: After each use, scrape off any food debris and rinse the cutting board under hot water.
• Use Mild Soap: Apply a small amount of mild dish soap and scrub the surface with a soft sponge or brush. Avoid soaking the board in water, as this can cause warping.
• Rinse Thoroughly: Make sure to rinse off all soap residues with hot water.
• Dry Completely: Pat the board dry with a clean towel and let it air dry standing up or on a raised rack to ensure both sides dry evenly.

2. Deep Clean (Weekly or as Needed)

• Salt and Lemon: The lemon method is good. Once you've removed any food remnants, sprinkle coarse salt over the board and use half a lemon to scrub it into the surface. Squeeze the acidic lemon juice out as you scrub to disinfect and remove odors. Rinse with hot water and dry thoroughly.
• Baking Soda Paste: For stubborn stains, mix baking soda with water to form a paste. Scrub the board with the paste, rinse, and dry.

3. Sanitize When Necessary

• White Vinegar: Spray the damp board with white vinegar and let it sit for a few minutes. Rinse with hot water and dry. Vinegar acts as a natural disinfectant.
• Hydrogen Peroxide: For more thorough sanitizing, you can use a 3% hydrogen peroxide solution. It's a safer option than liquid chlorine bleach (even diluted bleach). Pour it over the dirty cutting board, let it bubble for a few minutes, rinse with hot water, and dry.

4. Avoid Damage

• No Dishwasher: Never put your wooden cutting board in the dishwasher. The drying process and water can cause it to warp and crack.
• Apply Food-Grade Oil: To prevent the wood from drying out and cracking, apply food-grade mineral oil once a month. Cutting board oil is a great barrier against moisture and will Spread a generous amount over the entire surface and let it soak in overnight. Wipe off any excess oil in the morning.

How can I prevent my wood cutting board from warping?

To avoid a warped board, never soak your wooden board in water or put it in the dishwasher. Instead, rinse it with warm, soapy water and dry it thoroughly after each use.

What is the best way to keep your wooden board sanitary?

Many home cooks favor a bleach solution or hydrogen peroxide for thorough sanitization. It's not our preferred method, but as a last-ditch effort you can make a bleach solution by mixing 1/2 a tablespoon of bleach with a half-gallon of water. This ratio kills harmful bacteria without damaging the wood — and you don't need any more bleach per gallon. After applying the bleach solution, rinse the cutting board thoroughly with hot water to remove all bleach residue, and dry it completely before use. Keep it in a spray bottle beneath your kitchen sink, but remember, it's better for cleaning your plastic cutting boards than high-quality wooden boards.

Alternatively, we like a 3% hydrogen peroxide solution. It can be poured over the board, left to sit for a few minutes, then rinsed and dried.

How often should I oil my cutting board?

For optimal care and to keep your board beautiful, apply food-grade mineral oil monthly. This keeps the wood fibers hydrated and prevents the board from drying out or cracking.