Commercial refrigeration equipment plays a key role in the food sector, whether in supermarkets, convenience stores, restaurants, or bakeries. These display units ensure that food and beverages remain fresh, safe, and ready for consumption. However, when not properly cleaned or maintained, unpleasant odors can develop, compromising both the perceived quality of the products and the customer experience.
More than just a minor inconvenience, unpleasant odors are often a symptom of hygiene issues, poor maintenance, or improper use of the equipment. In this article, we explain the most common causes, how to eliminate them effectively, and the best practices to prevent their return.
Why do odors occur in refrigeration equipment?
Although odors may seem like a purely aesthetic issue, they are in fact directly linked to the quality of preservation and food safety. Among the most common causes are:
- Accumulated food residues
Small pieces of fruit, meat, or open packaging can release strong odors within just a few days. When not removed, these residues become breeding grounds for bacteria and mold. - Stagnant water in the drains
One of the most common problems in commercial refrigeration equipment is the accumulation of water in the drains. Stagnation creates an ideal environment for the growth of microorganisms. - Dirty filters and condensers
Dust, grease, and airborne particles accumulate in the filters and condensers, affecting airflow and promoting persistent odors. - Lack of internal ventilation
When equipment is overloaded with products, air circulation is compromised, creating areas of humidity and localized odors. - Deteriorated seals
Damaged door gaskets allow warm, humid air to enter, encouraging the formation of odors and condensation.
Impact of odors on the food retail sector
Ignoring the problem of odors can have direct consequences:
- Loss of customer confidence: refrigeration equipment with an unpleasant odor conveys a sense of poor hygiene.
- Risk to food safety: odors are often a sign of microbiological contamination.
- Reduced shelf life of food: environments with humidity and bacteria accelerate the degradation process.
- Increased operating costs: lack of maintenance leads to more breakdowns and lower energy efficiency.
How to eliminate odors: a practical guide
- Establish a regular cleaning schedule
A weekly and monthly cleaning plan should be integrated into the operational routine.
- Use neutral detergents, free from chlorine or harsh chemicals.
- Clean surfaces, grilles, shelves, and hard-to-reach areas.
- Avoid leaving cleaning product residues that could contaminate food.
- Ensure drain maintenance
- Check that the drains are clean and unobstructed.
- Apply specific products that inhibit bacterial growth.
- Replace filters and clean condensers
- Replace the filters periodically.
- Vacuum or brush the condensers to prevent the buildup of dust and grease.
- This practice eliminates odors and improves energy performance.
- Organize products correctly
- Avoid overloading the display with food products.
- Ensure there is space between packages to allow air circulation.
- Inspection and replacement of seals
- Regularly check the door gaskets.
- Replace damaged seals to prevent air and moisture infiltration.
- Replace damaged seals to prevent air and moisture infiltration.
- Placing activated charcoal or baking soda in small containers inside the display helps absorb odors.
- Charcoal filters specifically designed for refrigeration are effective in commercial environments.
- Invest in professional preventive maintenance
- Hiring scheduled technical support services ensures that the equipment is properly monitored and sanitized.
- Specialized technicians can detect problems before they become critical.
Long-term best practices to prevent the return of odors
- Train the teams: employees should be made aware of the importance of good hygiene practices.
- Document cleaning routines: records help ensure consistency and accountability.
- Choose the right equipment: opt for modern units with a design optimized for cleaning and energy efficiency.
- Monitor the temperature: fluctuations encourage microbial growth and odors.
Benefits of keeping equipment odor-free
- Better image with the customer
A clean, odor-free display reinforces the perception of quality and hygiene. - Energy efficiency
Clean equipment consumes less energy and suffers less wear. - Reduced food waste
Food stored under ideal conditions stays fresh for longer. - Longer equipment lifespan
Preventive maintenance prevents breakdowns and extends durability.
Eliminating odors in commercial refrigeration equipment is not just a matter of comfort, but a necessity to ensure food safety, energy efficiency, and a positive business image.
With a structured plan of cleaning, preventive maintenance, and good usage practices, it is possible to ensure that the equipment operates at full capacity, free from odors and performing at its best.
At FRICON, we develop innovative commercial refrigeration solutions designed to be efficient, sustainable, and easy to maintain, helping our clients reduce costs, improve the consumer experience, and strengthen their commitment to sustainability.
