So how to choose a safe and practical disinfection cabinet? Let me tell you briefly how it works.
One: the working principle of disinfection cabinet
At present, disinfection cabinets in the market generally adopt several disinfection methods, such as high temperature disinfection, ultraviolet disinfection and ozone disinfection. Among them, ultraviolet disinfection and ozone disinfection belong to low temperature disinfection, and the temperature of disinfection cabinet is generally 60 degrees Celsius.
Ultraviolet ray is the general name of radiation with the wavelength of 100 nm to 400nm in the electromagnetic spectrum, in which the band with disinfection function is 100nm to 200nm, and the ultraviolet ray with the wavelength of 253.7n·m has the best disinfection effect, which can kill various microorganisms, but the penetration ability of ultraviolet ray is weak, so it is impossible to disinfect the unirradiated area.
Therefore, the general disinfection cabinet adopts the disinfection method of combining ultraviolet rays with ozone. In addition to the disinfection effect of ultraviolet rays, ultraviolet rays can also produce ozone. Ozone is a light blue gas with a special smell.
Under the strong oxidation of ozone, various components in microbial cells react, leading to irreversible changes and death. It is generally believed that ozone kills viruses by directly destroying ribonucleic acid or deoxyribonucleic acid. Ozone is harmful to human body, but its stability is not high, and it is easily decomposed into oxygen at normal temperature and pressure.
High-temperature disinfection refers to the use of far-infrared heaters to heat the air or generate radiant heat, so that the air temperature in the disinfection cabinet is greater than 100 degrees Celsius. Through continuous heating, the protein tissue of microorganisms on the surface of tableware is denatured, thus killing bacteria and viruses. Heating usually lasts for more than 15 minutes.
Based on the disinfection principle of disinfection cabinet, some taboos will appear in the process of using disinfection cabinet.
Second, the harm caused by improper use of disinfection cabinet
First of all, you can't open the disinfection cabinet while it is working. No matter which disinfection method is used, opening and closing the disinfection cabinet at will do harm to human body, for example, high temperature disinfection will burn the user's skin.
Therefore, except that the disinfection cabinet cannot be opened during operation, it should be allowed to stand for a period of time after the disinfection work is completed, and then the disinfection cabinet should be opened after the ozone is completely decomposed into oxygen.
So how to choose the disinfection cabinet correctly to protect our healthy diet?
Three: How to choose the disinfection cabinet correctly
3. 1 Disinfection cabinet material:
Generally speaking, choosing the material of disinfection cabinet is the most important. The material of the disinfection cabinet panel determines whether it is easy to clean and durable. There are many kinds of materials for disinfection cabinets, such as tempered glass, stainless steel, painted steel plate, high temperature resistant PC plastic and sprayed steel plate.
First of all, spraying the disinfection cabinet is not recommended. Spraying materials have been applied to various products since 19 10, which used to be melt spraying, and then gradually derived from ceramic spraying. Its core is anti-wear, and the latter is anti-corrosion.
However, we need to pay attention to one problem. At present, most disinfection cabinets use powder spraying, and the sprayed coating is very easy to fall off, which will lead to rust and corrosion.
In fact, the paint peeling problem of this material is very serious, and it will start to peel in a few months, which is really not very nice. Moreover, the sprayed materials are easy to rust and corrode, and the temperature in the disinfection cabinet is high, so the sprayed paint is likely to volatilize harmful organic paint and cause harm to our human body.
It is also worth noting that with the development of industrialization, there are some problems in water quality in many places. Without cleaning, white scale and peculiar smell will appear, which may corrode the coating of the inner container and lead to rust spots on the disinfection cabinet.
Moreover, heavy metals, such as cobalt-based alloys, are still the mainstream of spraying. It must be clear to everyone that these heavy metals are more or less harmful to our health. If possible, spraying is not recommended.
Secondly, I personally think that the disinfection cabinet made of tempered glass is worth recommending. The safety of the disinfection cabinet made of this material is still relatively high. When the glass is damaged by external force, the fragments will break into obtuse-angled particles similar to honeycomb, which is not easy to cause serious harm to human body.
The impact strength and bending strength of tempered glass with the same thickness are 3-5 times that of ordinary glass. In addition, tempered glass has good thermal stability, which can withstand three times the temperature difference of ordinary glass and 300℃ temperature difference change. However, it is said that tempered glass does have the possibility of explosion, although the probability of explosion is relatively low.
Stainless steel disinfection cabinet is also good. Generally speaking, the inner container and bowl rack of good quality household tableware disinfection cabinet are stainless steel. Compared with galvanized sheet and aluminum sheet, it has the advantages of non-toxicity, corrosion resistance, rust prevention, firmness and durability.
At present, there are stainless steel liners and aluminum liners in the disinfection cabinets on the market, and stainless steel liners are used more, because stainless steel liners are easy to clean and not easy to rust. Aluminum liner is thin, slightly poor in quality, difficult to clean and poor in durability.
In terms of structure, I recommend stainless steel? Body plate frame disinfection cabinet is durable. Even a small dish is not easy to fall off. At present, many disinfection cabinets on the market use wire racks, which are generally strong and can't bear too many large objects such as ceramic soup bowls, and small objects are easy to fall off.
3.2 disinfection cabinet star standard:
To evaluate the cost performance of a disinfection cabinet, besides the material, the star standard is also very important. The disinfection of the disinfection cabinet is actually star-rated, and the type and degree of disinfection of two stars are higher than that of one star. Pay attention to the sterilization grade on the parameter list when buying.
One star: it can only kill some simple Escherichia coli and Staphylococcus aureus, which can't meet the disinfection requirements of the current disinfection cabinet.
Two stars: On the basis of one star, a variety of refractory bacteria, such as Helicobacter pylori and more common poliovirus, have been added. Two-star national standard is a hard index for the purchase of disinfection cabinets.
Generally speaking, the national standard two-star can be called a real disinfection cabinet, but the two-star disinfection cabinet can be divided into low temperature and high temperature. High temperature disinfection is the most thorough and time-saving. When choosing a disinfection cabinet, we should consider many factors such as the crowd and the type of disinfection equipment. For example, if you have a large population, you should choose one with large capacity. If you have children, it is recommended to choose a disinfection cabinet with bottle disinfection function.
3.2 Durability of disinfection cabinet:
Then look at its durability, the more durable the disinfection cabinet, the higher the cost performance. In fact, the more durable things are, the more people are willing to pay for them. This should be regarded as common sense, from kitchen utensils to cars to houses, without exception.
The durability of the disinfection cabinet is mainly in the material. The better the material of the disinfection cabinet, the more durable it will be. Maybe many people still have no idea. If there is no strong brand preference, I recommend Kangbao's disinfection cabinet.
Four: the real experience of disinfection cabinet
I think Kangbao has done a good job as far as disinfection cabinets are concerned. After all, it is a product of a big factory, and there will be no big problems in strength, especially no deformation and wear. I use Kangbao disinfection cabinet in my own home. I think it is very good in terms of materials and durability.
Especially in internal structure, their household stainless steel is really practical. Places where sideboards can directly contact tableware, including shelves, guide rails, liners, door backboards and door frames, are made of food-grade 304 stainless steel. In addition, the stainless steel frame is made of solid material, so we can use it with confidence.
On the issue of architecture, Kangbao also won my heart. At present, in order to reduce the cost, many manufacturers in the market adopt welded wire frame structure. Although this kind of structure seems to have little problem on the surface, its durability is not satisfactory. In some places, the welding points are easy to rust when they are in contact with water for a long time. If they still spray materials, this disinfection cabinet will soon be completely scrapped.
In addition, in actual use, the structure of the wire rack will be not very good, for example, small items are easy to fall off, and sometimes if chopsticks or spoons are stuck in the gap, they can't be taken out.
Relatively speaking, it is much better to use integrated stainless steel plate and frame. One is that small items are not easy to fall off, and integrated stainless steel will be much better at solder joints. In addition, the stainless steel itself is non-toxic and harmless, and the whole will be safer.
V: Summary
Generally speaking, when purchasing a disinfection cabinet, we should not only pay attention to the disinfection effect, but also pay attention to the durability and safety of the product. The disinfection cabinet made of tempered glass and stainless steel is preferred, and the integrated stainless steel plate frame is adopted.