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Cutting boards are an essential item in every household kitchen, but this often overlooked tool can easily harbor dirt and bacteria. Research data from a team at Harvard University shows that the bacterial count on everyday wooden or plastic cutting boards can reach up to 26,000 per square centimeter, making them even dirtier than a household toilet!
In a typical household kitchen, at least three cutting boards are needed to meet all the requirements: one for cutting vegetables, one for raw food, and one for cooked food.
Suitable for: Ideal for chopping meat or cutting hard foods.
Selection Criteria: Choose high-quality, reliable wood, such as ginkgo, acacia, birch, or willow, which are less prone to cracking.
Advantages: Made from natural materials, considered healthier; tough and resilient, able to withstand chopping and cutting.
Disadvantages: High water absorption, prone to mold in damp conditions; lower hardness, which can lead to wood splinters when chopping; less wear-resistant, and may crack or become misshapen over time.
Suitable for: Bamboo cutting boards are not suited for heavy chopping and are ideal for cutting cooked food, fruits, and vegetables.
Selection Criteria: Boards made from whole bamboo rather than those glued together are recommended, as they offer benefits such as being healthier, crack-resistant, warp-resistant, durable, hard, flexible, and easy to clean.
Advantages: Moderate water absorption, reducing the chance of mold by about half; high hardness, so no worry of bamboo splinters; lightweight and easy to handle, more convenient than heavy wooden boards; made from natural materials, promoting healthier use.
Disadvantages: Prone to cracking, especially if glued together; lower flexibility, offering a less favorable experience compared to wooden boards; smooth surfaces can be slippery and increase the risk of injury when cutting hard foods.
Suitable for: Ideal for light cooking tasks such as making pastries, dumplings, sushi, and other lightweight preparations.
Selection Criteria: Choose plastic cutting boards that are semi-transparent, of good quality, with even color, no impurities, and no pungent odor.
Note: Plastic cutting boards should not be used for slicing hot cooked food, as high temperatures can accelerate the release of harmful substances. After each use, rinse with hot water (50-60°C) and dry immediately.
Advantages: Zero water absorption, keeping the board dry before use; lightweight and easy to carry; suitable for cutting meat and can be sanitized in a dish cabinet.
Disadvantages: Medium hardness; if the texture is rough, it can produce small plastic shavings. Prone to releasing harmful substances under high heat. Long-term use may potentially harm the liver and kidneys, so avoid using it to cut hot foods.
① How does a small cutting board become a "health threat"?
Food comes into direct contact with both the knife and the cutting board. When cutting raw food, bacteria and other microorganisms from the food can remain on the surface. Even raw vegetables carry a significant amount of bacteria and parasite eggs. The contamination becomes especially severe when raw and cooked foods are cut on the same board.
Consuming food contaminated with bacteria from the cutting board can easily lead to diarrhea, gastroenteritis, and other illnesses.
Many households tend to hold onto cutting boards until they’re completely worn out! However, studies show that the longer a cutting board is used, the more bacteria it harbors. In addition to regular cleaning, it’s essential to replace cutting boards in a timely manner to prevent excessive bacterial growth.
Many people simply rinse their cutting boards with water after use, believing they are clean. However, food residues can accumulate in knife grooves, even if the surface looks clean.
Additionally, some molds may not be fully removed even with boiling water, and over time, these can pose a serious health risk.
① How often should you replace a cutting board?
Cutting boards should be replaced every six months.
When using a cutting board, make sure to separate raw and cooked foods and disinfect regularly. If the cutting board shows signs of mold, it should be discarded immediately and not reused.
Deeper knife grooves on the cutting board can trap food residues, leading to mold growth, and possibly producing carcinogens like aflatoxins. If there are too many knife marks, it's important to replace the board promptly.
② How to clean cutting board?
Sprinkle baking soda evenly over the cutting board, then spray a small amount of water on top. Use a brush to scrub the board thoroughly, and then let it air dry in a well-ventilated area.
Dip a cloth in an appropriate amount of white vinegar and gently wipe the cutting board. After leaving it to air dry naturally in the sunlight, rinse it with clean water.
Note: After cleaning, the cutting board should be hung up to air out, or placed in the sun to dry. It’s best to do this daily for optimal hygiene.
③ How to care for cutting board?
Of course, cleaning the cutting board is not enough; proper maintenance is also crucial to extend its lifespan.
How to oil cutting board: Apply cooking oil evenly to both sides and the edges of a new cutting board. Allow the oil to soak in and dry, then apply 3-4 coats.
For cutting boards that have become dry and rough over time, you can use coconut oil to moisturize and reduce the likelihood of further cracking.
How to remove mold from cutting board: Boil the cutting board in water for 20 minutes, then let it air dry in a well-ventilated area. This helps to prevent mold growth.
