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Pasteurization principle.
Within a certain temperature range, the lower the temperature, the slower the bacteria will multiply; The higher the temperature, the faster the reproduction. But if the temperature is too high, the bacteria will die. Different bacteria have different optimal growth temperatures and ability to tolerate heat and cold.
Pasteurization is actually to take advantage of the characteristics of pathogens that are not very heat-resistant, treat them with appropriate temperature and holding time, and kill them all. However, after pasteurization, a small number of harmless or beneficial, heat-resistant bacteria or bacterial spores are still preserved, so pasteurized milk should be stored at a temperature of about 4, and can only be stored for 3-10 days, up to 16 days.
This paragraph. Disinfection method.
At present, there are two main methods of pasteurization commonly used in the world: one is to heat the milk to 62-65 and hold it for 30 minutes. This method is currently less commonly used in Guangdong.
Using this method, it can kill all kinds of growth pathogenic bacteria in milk, and the sterilization efficiency can be reached, and only some thermophilic bacteria and thermoresistant bacteria and spores remain after disinfection, but these bacteria account for most of the lactic acid bacteria, and lactic acid bacteria are not only harmless to people but beneficial to health. The second method heats the milk to 75-90 and keeps it warm for 15-16 seconds, which has a shorter sterilization time and higher work efficiency. However, the basic principle of sterilization is that the pathogenic bacteria can be killed, and if the temperature is too high, there will be more nutrient loss.
The temperature of the pasteurization method is 63-85
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84 with a certain odor, at the same time has a bleaching effect, will make the wool fabric fade, if the wool fabric is directly in contact with the **, there is also a certain damage to the **, to be used reasonably.
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84 disinfectant = not disinfectant.
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Because Eighty-Fourth will corrode woolen fabrics.
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Answer 1: If the clothes are stained with 84 disinfectant, the clothes should be soaked in water immediately before the clothes have changed color, and the 84 disinfectant should be diluted. It is possible to send the clothes to the dry cleaner for a small part of the dyeing, that is, the complementary color, and barely restore the clothes to the same color.
The traces of disinfectant cannot be removed, and you can take the clothes to the dry cleaner for a small area of dyeing, and the dry cleaner is called a complementary color, and the color can be replenished.
It is a detergent with bleaching effect, which is generally used to wash white clothes and slight staining marks on white clothes. If the colored garment shows 84 bleached marks, it proves that the color of the piece has been stripped and the fabric has some damage, so only dyeing can restore it to its original state.
4. Precautions for the use of 84 disinfectant, which was only used in the hospital in the early days, was used for the disinfection of a variety of medical equipment, cloth, walls, floors, toilets, etc. 84 disinfectant is now available everywhere in the market.
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Summary. Kiss <>
84 disinfectant has the effect of bleaching, if it is used to soak clothes, then the clothes will be bleached, thus losing their original color, soaking for too long, the clothes will also be corroded.
Why can't 84 disinfectant be used for the disinfection of woolen fabrics?
Hello dear <>
The use of 84 disinfectant in woolen fabrics can easily cause clothes to be corroded and tattered.
Kiss <>
If it is used to soak clothes, then the clothes will be bleached, thus losing the original color of the face mold, and if the soaking time is too long, the clothes will also be corroded.
Therefore, be cautious when using 84 disinfectant to soak clothes.
Good. Congratulations to you for the new year, new year, new year, happy new year, the year of the tiger, like a tiger with wings, good health, good things, 2022 wishes come true, the year of the tiger is vigorous! <>
Qingye Zheng lead wishes] <>
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Yes. Fabrics (towels, etc., especially colored clothes should not be used): mix water with the original solution at a ratio of 1:29 (pour half a bucket of water into 4 covers), soak for 20 minutes, and then rinse with water.
Precautions for use:
1. 84 disinfectant should be placed out of the reach of children to avoid accidental ingestion.
The bleaching effect of disinfectant is strong and corrosive, it is best not to use it for the disinfection of clothes, the concentration must be low when it must be used, and the soaking time should not be too long.
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Stained with 84 disinfectant on clothes can be removed with hydrogen peroxide and soap or alcohol.
The 84 disinfectant on the clothes can be soaked in diluted hydrogen peroxide for 5 minutes before being washed normally; You can also rub it separately with soap, then put it in a clear plastic bag and shine it in the sun for an hour, and then take it back and wash it normally.
You can also use alcohol and gasoline to apply alcohol and gasoline to the place splashed with 84 disinfectant, and then soak it for 2 hours and then scrub it, or you can soak the clothes with hot water and salt for 1 hour and wash them, or soak the clothes with hydrogen peroxide and water for 5 minutes and wash them can also be removed.
84 ways to remove stains without fading:
You can use dish soap to wash the oily spots separately, and then wash the clothes with laundry detergent. Dish soap can break down oil, but it cannot replace laundry detergent to wash clothes, and you can use laundry detergent to wash other dirty things after all dish soap has been used.
If it can't be washed, it must be diluted when it is 84, 1:15 mixed with water, and then the clothes should be soaked in water, the time should not be too long, and the clothes should be spread flat and soaked evenly to avoid color mixing. After using 84, you also need to carefully wash the residual 84, otherwise it will damage the fibers of the clothes.
If you don't go in too much, you can still use it normally, or you can continue to use it, if you enter too much, it has affected the normal use. It can only be disassembled to clean up.
Chlorine dioxide disinfectants are available in aquaculture and food grade, and there is no problem with touching. However, it is still as reliable as possible to come from the place of origin.
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