Among the types of ventilation pollution, grease occupies a special place. Despite the abundance of filters, grease traps and advanced technical devices, people have not yet learned how to completely block his way into the ventilation ducts. Tiny droplets of oily substances enter the air ducts every time we cook food. Regular vent cleaning of ventilation from grease is especially important for catering establishments. The essence of the problem and how to deal with it competently are told by the employees of the Sanitary and Epidemiological Station of St. Petersburg and the region, who have been successfully cleaning ventilation systems from fatty deposits for a long time.
Why clean the ventilation from grease
The main problem with fat is its relatively high melting point. Small splashes during cooking form a suspension in the air, which the hood draws into the ventilation duct. However, the temperature in the duct is much lower than in the kitchen. Particles of the oil suspension cool down, settle on the inner surfaces, adhere firmly to them and create the following threats:
- The fire hazard increases . Fat easily ignites, burns well and is very poorly extinguished. In an oxygen-rich environment, a fire quickly spreads through the floors of a building, and an abundance of calories allows the fire to gain heat. Timely cleaning of ventilation ducts is a matter of safety for people throughout the building.
- Decreased ventilation capacity . The oily sediment narrows the lumen of the ventilation ducts, gas exchange is disturbed. The room becomes stuffy, unpleasant odors spread, it is difficult for staff to work in it and visitors do not want to be there. Air duct cleaning is a way to increase the profitability of a restaurant or cafe.
- The load on the equipment is growing . Sticky dense deposits settle on the blades of exhaust fans, electrical contacts, clog grooves, seals, thicken bearing grease. Forced ventilation is working at its limit, the number of equipment failures is growing, and the resource is dropping sharply. By cleaning the ventilation, you can extend the life of the devices.
- There is a health hazard . Fat on the walls of the ventilation ducts attracts dust, debris, cockroaches, rats, and other dangerous pests. A humid warm environment, an abundance of food and oxygen are ideal for the development of pathogenic bacteria, protozoa, mold colonies, which enter the human body with food and air. Cleaning ventilation from grease prevents dangerous diseases.
Compared to the price of possible consequences, the cost of professional cleaning of ventilation systems will not seem too high. But it's not just about money: fresh air in a restaurant means safer work, satisfied customers, and loyal staff.
How is the fat cleaning of ventilation
Soft homogeneous deposits are not so difficult to clean. But over time, layers of dust, cobwebs and oily sediment form such a strong shell that even special equipment is difficult to cope with. Therefore, cleaning of ventilation systems from grease should be regular.
In our company, this technology looks like this: after receiving the application, the dispatcher clarifies the details of the order by phone and agrees to go to the site. At the appointed time, specialists carefully examine the ventilation system outside and inside with the help of a TV camera with illumination and remote control. After determining the scope and list of services, an estimate is drawn up with the final cost, which becomes part of the contract for cleaning the ventilation. They take out food, kitchen equipment and electrical appliances, cover it with plastic wrap, and get to work.
