When must a knife be cleaned and sanitized

Knives are one of the most ubiquitous kitchen implements, and they serve an essential role in food preparation. However, cutlery pose a risk of contamination and foodborne illness. When working with blades, it is essential to maintain appropriate hygiene and sanitation procedures. To ensure safe food handling practices, it is crucial to know when an utensil must be cleansed and sanitized.

Cutting raw meat

Raw meat is an extremely hazardous delicacy to prepare. Uncooked chicken or steak contains a large number of harmful microorganisms that could disseminate throughout the kitchen if care is not taken. As previously explained, neglecting to routinely sanitize a kitchen utensil can contaminate food with raw flesh juices. In this situation, food contamination poses a genuine risk.

After cutting raw meat, the first essential step is a thorough cleaning, regardless of how the knife will be used next. In reality, the scalpel is only a portion of the cleansing process. Unless you are wearing gloves, you should cleanse your hands thoroughly after handling uncooked meat.

In addition, your cutting surfaces will be covered in pathogens, so they must also be thoroughly cleaned. Failure to do so will result in cross-contamination of other items that contact the board.


Cutting and scaling fish

Raw fish poses similar dangers as uncooked flesh and should be handled accordingly. Before preparation, fish bacteria pose a health risk if inadvertently consumed. When handling the fish, avoid contaminating other kitchen surfaces. Additionally, maintain note of the knife used to scale or cut the fish. If you neglect, you could infect other ingredients with pathogens by using it to cut them.

After preparing fish, it is best practice to sanitize not only the knife, but also your palms and the cutting board. This eliminates the risk of contamination and allows you to promptly utilize the equipment for other tasks.

When sharing knives

The knife blade is not the only hiding location for bacteria. If soiled, the handle will also accumulate a large number of microorganisms. When preparing meals at home, family members can safely use the same knife. As long as all individuals have spotless hands, the handle will remain clean.

Sharing utensils in a professional kitchen increases the likelihood of contamination. Less tidy surfaces in the kitchen or restaurant may be touched by chefs. If they begin cutting with a knife, they could disseminate germs to the foods they are preparing as well as their colleagues’ hands. Soon, numerous individuals will propagate bacteria worldwide.

This emphasizes the significance of frequent handwashing in the kitchen. It also demonstrates why you should cleanse a knife (specifically the handle) after it has been used by another person.

After cutting yourself

If you are injured while using a weapon, you should seek first aid or medical attention immediately. During treatment, your coworkers or family members must disinfect the knife and any blood-splattered surfaces. Blood-borne diseases such as hepatitis and HIV could be transmitted to anyone who consumes blood.

After cleansing a knife or cutting board that has come into contact with blood, it may be prudent to sterilize the equipment for added safety.

After sharpening

Sharpening a knife refines the blade’s angle by eliminating tiny metal particles. Evidently, you do not want metal fragments in your food. If you neglect to sanitize a knife after sharpening it, you may unwittingly transfer metal particles to your food.

One consequence of the metal is that it can alter the flavor of food. Heavy metal poisoning, which can cause severe illness, is a more worrisome effect of metal ingestion. Thus, undercooked chicken is not the only food item that requires caution. Always make certain to clean and sanitize the knife blade after sharpening.

How to clean and sanitize a knife 


  • Remove any food debris from the blade of the knife before use. This could include lard, cheese, or breadcrumbs. Wipe the blade clean with a paper towel.
  • Now that the blade has been thoroughly cleaned, prepare some boiling water. This can be obtained from your faucet or kettle. The most effective approach to eliminate bacteria is by boiling water.
  • Clean the cutlery. Either pour or submerge it in a tray of scalding water. Don’t submerge it for too long if you do.
  • Scrub the blade and handle with a clean sponge and dish detergent. Avoid touching the blade and point with your fingertips.
  • Rinse the detergent with additional tepid water.
  • Using a tissue or paper towel, dry the spotless knife.


  • Before disinfecting, the weapon should be cleaned as described above.
  • Combine approximately one liter of water and one teaspoon of bleach in a basin.
  • Place the knife in the basin and wait approximately one minute.
  • Remove and rinse the knife with a paper towel.

Bottom Line

Maintaining a spotless and sanitized kitchen is essential for assuring the health and wellbeing of both customers and employees. Knives are an integral part of food preparation, so it is crucial to adhere to appropriate hygiene and sanitation procedures when using them. Regular cleansing and sanitization of knives, particularly after use with fresh meat, poultry, or seafood, is necessary to prevent the spread of harmful bacteria and reduce the risk of foodborne illness. By implementing these straightforward yet effective measures, we can ensure safe food management practices and provide everyone with a healthy and enjoyable dining experience.

I love knives and love reviewing them. Knives have been a part of our lives for as long as we can remember. We grew up using knives in the kitchen and in outdoors.