Chef Cooking in the Kitchen

How to Keep Moisture Out of Your Restaurant Kitchen

• Excessive moisture in the kitchen can lead to mold and mildew growth, food spoilage, damaged equipment and appliances, and health hazards.

• Installing proper ventilation systems and dehumidifiers are important steps to keep moisture out of the kitchen.

• Applying water repellency treatments on kitchen floors helps reduce condensation buildup and prevent slips.

• Proper cleaning practices, such as wiping down surfaces after every shift, help keep the kitchen dry and free from potential risks. 

The kitchen is the heart of any restaurant. It is where every meal is prepared and served. Unfortunately, since a lot of liquids and steam are involved, it can be a breeding ground for moisture that can affect the quality of your food.

The Risks of Too Much Moisture in the Kitchen

Moisture happens when warm air comes into contact with cool surfaces, like windows or cold floors. The combination of these two elements creates condensation that causes a place to become damp. Here are some of the risks of too much moisture in the kitchen:

Mold and Mildew Growth

Mold and mildew thrive in moist, warm environments. Too much moisture in the kitchen can cause mold and mildew growth on surfaces like wall tiles and ceilings. Signs of mold and mildew presence include strong odors, discoloration, or stains on surfaces.

Food Spoilage

Excessive moisture can cause food to spoil more quickly than usual. This is because bacteria thrive in moist conditions. When food gets too damp, it can go bad and become unsafe for consumption. This could also lead to you having to discard food that hasn’t been served or has gone bad due to the conditions in your kitchen.

Damaged Equipment and Appliances

The presence of moisture can cause corrosion of metals and warping in wood or plastic surfaces. This can weaken equipment and appliances like ovens, fryers, and refrigerators. Especially when using electric appliances, it can cause them to short-circuit and become a fire hazard.

Black Molds on Spoiled Food Surface

Health Hazards

The presence of too much moisture can cause health hazards for your staff. It can promote the growth of bacteria and allergens, which can cause skin issues, sinus infections, and respiratory problems. This can cause your employees to become ill, resulting in lost time and productivity.

Safety Hazard

Moisture can cause the walls and floors slippery, especially when combined with oils and other liquids. This can increase your staff’s risk of slips and falls, leading to serious injuries or even death. This may also result in costly lawsuits, ultimately closing your business.

How to Keep Moisture Out of Your Restaurant Kitchen

Fortunately, mitigating the kitchen’s moisture risks is a simple task. Here are some updates you can make to keep your kitchen dry and safe:

Install Ventilation Systems

Installing a proper ventilation system is the most important way to keep moisture out of your restaurant kitchen. A good ventilation system will help to reduce condensation buildup and ensure that any steam or smoke generated by cooking operations can be quickly vented outside. Ensuring the ventilation system is regularly cleaned and checked for blockages is important. Otherwise, it could lead to increased humidity levels in the kitchen.


Another great way to reduce kitchen moisture is using a dehumidifier. Dehumidifiers are designed to remove excess humidity from the air, reducing condensation buildup on surfaces and helping to prevent mold growth. It’s important to note that dehumidifiers should only be used when necessary. If you overuse them, you could end up with too little humidity in the air, which can be just as damaging as too much.

Renovating the Kitchen Floor

The kitchen floor is one of the most common areas where moisture accumulates. Applying ASTM F3010, a standard for water repellency of flooring materials, can help to reduce condensation and prevent slips in the kitchen. This standard specifies that floors must be treated with a coating material or sealant to make them more resistant to water penetration, helping to keep the kitchen dry and safe.

Brown Wooden Panel Beside Concrete Board

Proper Cleaning Practices

Make sure all surfaces are thoroughly wiped down after every shift—this will help prevent water droplets from forming on surfaces and encourage proper evaporation when they do form. Additionally, ensure you regularly check for signs of mold or mildew growth. If you spot any, clean it with a commercial cleaner designed for hard surfaces as soon as possible. You should also consider conducting regular deep cleans of your kitchen at least once every few months. This will help ensure that all areas are kept dry and free from mold or mildew growth.

Being in the food business poses a great responsibility to keep it safe and hygienic for everyone involved. With the right precautions and updates, you can ensure your restaurant kitchen stays moisture-free and safe from potential risks. By following these tips, you can maintain a healthy and safe working environment for everyone in your kitchen.

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