How to Clean and Sanitize Kitchen Utensils

In This Guide

• 1 Cleaning vs. Sanitizing
• 2 How to Sanitize Utensils
• 3 Cleaning by Material
• 4 Special Care for Cutting Boards
• 5 When to Replace Utensils
• 6 Simple Daily Habits

Your kitchen utensils touch nearly everything you eat. Wooden spoons stir sauces, spatulas flip eggs, knives cut vegetables and meat. When these tools are not properly cleaned and sanitized, bacteria can linger and spread to your food.

Most home cooks wash their utensils after use, but washing alone does not kill harmful bacteria. This guide explains the difference between cleaning and sanitizing, and shows you how to keep your kitchen tools safe for everyday cooking.

Cleaning vs. Sanitizing: What Is the Difference?

Cleaning and sanitizing are two different steps. Both are necessary for food safety.

You must clean before you sanitize. Sanitizers cannot work properly on dirty surfaces because food residue shields bacteria from the sanitizing agent.

How to Sanitize Kitchen Utensils

There are two effective methods for sanitizing utensils at home: heat and chemical sanitizing. Both work well when done correctly.

Method 1: Heat Sanitizing

High heat kills bacteria effectively. You can use your dishwasher or boiling water.

• 1. Dishwasher: Run utensils through a complete cycle with heated dry. Most dishwashers reach temperatures high enough to sanitize.
• 2. Boiling water: Submerge heat-safe utensils in boiling water for at least 30 seconds. Remove carefully and air dry.

Method 2: Chemical Sanitizing (Bleach Solution)

A diluted bleach solution is the most reliable chemical sanitizer for home use. According to the USDA, this is the proper ratio:

How to use:

• 1. First, wash utensils with hot, soapy water and rinse.
• 2. Submerge in the bleach solution for at least 30 seconds.
• 3. Remove and let air dry completely. Do not rinse or towel dry.

Air drying is important. Towels can reintroduce bacteria to clean surfaces. The trace amount of bleach that remains after air drying is safe and will dissipate.

Cleaning Guidelines by Material

Different materials require different care. Here is how to clean common kitchen utensils:

Wooden Utensils

Wood is porous, so it requires extra attention. Never put wooden utensils in the dishwasher.

• • Wash by hand with hot, soapy water immediately after use
• • Sanitize with the diluted bleach solution (safe for wood)
• • Allow to air dry standing upright so moisture does not collect
• • Periodically condition with food-grade mineral oil to prevent cracking

Metal Utensils (Stainless Steel)

Stainless steel is durable and easy to sanitize.

• • Dishwasher safe (use heated dry cycle for sanitizing)
• • Can be sanitized with boiling water
• • Bleach solution is also safe for stainless steel

Note: Cast iron requires different care than stainless steel — it should not go in the dishwasher or soak in water. See our cast-iron skillet cleaning guide for proper maintenance.

Plastic and Silicone Utensils

Check whether items are dishwasher safe (most heat-resistant silicone is). Plastic can harbor bacteria in scratches and cuts.

• • Check for dishwasher-safe symbol before using heated cycle
• • Sanitize with bleach solution if not heat-safe
• • Replace plastic utensils that are scratched or discolored

Special Care for Cutting Boards

Cutting boards deserve extra attention because they come into direct contact with raw meat, poultry, and produce.

For plastic cutting boards:

• • Run through dishwasher on heated cycle after each use with raw meat
• • Replace when deeply scored (grooves harbor bacteria)

For wooden cutting boards:

• • Scrub with hot, soapy water immediately after use
• • Sanitize with bleach solution and air dry
• • Sand down grooves periodically or replace when worn

When to Replace Kitchen Utensils

Even with proper care, utensils do not last forever. Replace them when you notice:

• Deep scratches or grooves — Bacteria can live in cuts that cleaning cannot reach.
• Cracks in wood — Moisture and bacteria penetrate cracks and cannot be removed.
• Warping or melting — Heat-damaged utensils can leach chemicals and harbor bacteria.
• Persistent odors — Smells that remain after thorough cleaning indicate bacterial buildup.
• Discoloration or staining — Especially on plastic, deep stains can indicate bacterial presence.

Simple Daily Habits for a Safer Kitchen

You do not need to sanitize every utensil after every use. Here is a practical approach:

• Always sanitize after contact with raw meat, poultry, fish, or eggs.
• Wash immediately — do not let food dry on utensils, as it becomes harder to remove.
• Air dry when possible, or use clean towels that you change frequently.
• Weekly deep sanitize — run all utensils through the dishwasher on heated dry, or soak in bleach solution.

---

Keeping your kitchen utensils clean and sanitized does not require much extra effort once you build the habit. The key is understanding when washing alone is enough and when you need to take the extra step to sanitize.

Utensil care is one part of a complete kitchen-cleaning routine. For the full process — from clearing counters to mopping floors — see our step-by-step kitchen cleaning guide.

For professional help keeping your kitchen spotless, our team includes the kitchen as a focus area in every cleaning. See what is included in our recurring cleaning service.