In recent years, with the increasing awareness of food safety among people, food quality issues have been widely valued. The clean room provides a clean and safe environment for food processing.

Food cleanliness engineering is often applied in the production of food raw materials and deep processing. The selected purification technology strictly controls pollutants such as particles and bacteria in the air. Achieving aseptic packaging effect together refers to completing the packaging process of food in a clean environment. Other factors also have a certain effect on food fermentation. The purification workshop of food purification engineering requires satisfactory air supply during production and quick and effective cleaning of indoor pollution.

Of course, in order to ensure the cleanliness of the workshop more effectively, there are considerations when constructing a clean engineering workshop. In general, color steel plates are used as materials for walls and roofs; Aluminum oxide profiles are used for doors and windows; Epoxy self leveling should be used on the ground with anti-static effect.

In order to ensure the quality of food is foolproof, it is necessary to rely on the production environment of the clean room and advanced disinfection equipment to complete the process. This process should include all aspects from the entry of employees into the clean room to the stop of product storage. In the food production chain, the control of "micro pollution" is a weak link, and if not strictly controlled, it will inevitably affect food safety.

The so-called "micro pollution" refers to the general term for small sources of pollution such as new products from employees, bacteria on their hands, bacteria in the workshop environment, mold in dust on the ground, and bacteria propagated by air conditioning. If any of these sources are not properly controlled, they can cause food to mold or rot during its shelf life. Therefore, in order to strictly control micro pollution sources in the food production process, it is necessary to have the following important conditions that play a key role:

1、 Control the micro pollution sources of employees

1. The most direct and useful way to control workers' innovation is to change work shoes, work clothes, work hats, and disposable masks before production. Work clothes and hats should be neatly worn, and hair should not be exposed outside the clothes and hats. Do not wear lipstick, makeup, perfume, nail polish, any jewelry, watches, etc.

2. Complete hand disinfection before entering the dust-free workshop. It is recommended to use the "Q8 automatic induction hand disinfection device". If 75% medical alcohol is used as the disinfection medium, the process is as follows: "Induction soap dispenser hand washing faucet flushing induction drying induction hand disinfection"; The process of using other disinfectants as disinfection media is as follows: "Induction soap dispenser hand washing - faucet flushing - induction hand disinfection - induction drying"; It is recommended to choose the first method, as there is no residue on the hands after alcohol evaporates. Based on the time after the initial sterilization of the hands, it is recommended to disinfect the hands every 60-90 minutes to isolate the growth and reproduction of hand bacteria.

3. It is necessary to wear disposable gloves when handling products during the production process. The gloves should be intact, undamaged, and waterproof. When hands are contaminated, it is necessary to follow the above hand washing and disinfection procedures to disinfect them again.

2、 Control micro pollution sources in the air of dust-free workshops

1. When daytime workers are working, dynamic disinfection equipment such as food dynamic sterilizers are used. In recent years, this equipment has been widely used in the packaging, cooling, and filling processes of food enterprises. The latest NICOLER sterilization principle is used, and the disinfection process is to generate a reverse electric effect in the NICOLER chamber through a special pulse signal, generating a lot of plasma to kill negatively charged bacteria. The entire sterilization process only takes 0.1 seconds. Because people can work together in the workshop during disinfection without causing any harm to the human body, this sterilization technology can also be called "NICOLER disinfection technology".

2. At night, workers use static disinfection equipment after work, such as using ultraviolet sterilization for air disinfection in packaging, cooling, and filling processes, which effectively inactivates pathogenic viruses, bacteria, and protozoa without producing any disinfection by-products. However, ultraviolet radiation can damage human skin cells and, in severe cases, cause cancer or eye damage. It is recommended to use ozone for air disinfection in ingredient, semi-finished product clean rooms, and product warehouses. Ozone can not only inhibit the growth of bacteria on the surface of objects, but also effectively expel rodents and insects, reducing the harm of organisms to food. It is important to note that both ozone and ultraviolet radiation can be harmful to human health. It is necessary to open the windows after workers have left work, close them before work, and then open them for ventilation before workers can enter the workshop.

3、 Control micro pollution sources in clean rooms for purification

Positive pressure purification room is one of the important methods to ensure the safety of food processing environment, because it does not have sterilization function and can only reduce microbial content by controlling dust. Just turn on the machine and its "micro pollution sources" will flash one by one, such as bacteria breeding on the air conditioning surface cooler, bacteria breeding on the inner wall of the pipeline, and bacteria extending from the filter. To avoid food companies investing heavily in clean rooms to ensure food production safety, but failing to completely eliminate the risk of "micro pollution", regarding this:

1. 80% of the pollution sources in the clean room come from the operators. If the operators can follow the clean room treatment methods and all personnel cooperate to carry out the treatment, the occurrence of pollution sources can be said to have been reduced by half.

2. It is necessary for employees entering the clean room to have the concept of achieving high cleanliness standards and maintaining the best condition.

3. The number of employees entering the clean room should be kept to a minimum (the smaller the better), and they must follow the standard procedures for entering and exiting the clean room. Go in the opposite direction, but do not need to go through a buffer channel or air shower to remove dust.

4. The latest technologies in the field of clean room pollution control will be introduced below for dynamic sterilization equipment in the air conditioning and ventilation systems of clean rooms

Using NICOLER dynamic sterilization technology, the equipment is located in front of the main or branch pipes of the air duct or the air conditioning surface cooler. Equivalent to turning the entire purification air conditioning supply system into a large-scale air disinfection machine, only the air conditioning needs to be turned on: bacteria that grow in the air of the cleanroom, new metabolites on workers, bacteria in the return air of the pipeline, bacteria contained in the fresh air, and secondary pollutants of the system itself (bacteria that grow and extend from surface coolers, pipeline walls, filters, etc.) will be quickly differentiated and killed, making food safe to produce in a truly "sterile and dust-free" workshop.

This article explains that in order to better control the safety of food, it is necessary to introduce and select some new concepts. With the application of advanced NICOLER sterilization technology in food processing, the safety of final products has made significant progress; With the sophisticated application of various "micro pollution" control methods, a high-quality processing environment that ensures quality and safety can be effectively constructed.

Article source: Guangdong Purification Engineering http://www.jmyujie.com/