Believe you around, there is always this kind of people: go to a restaurant to eat, have to use boiling water to the dishes shabu; do not want to go to wash their hands to take a wet towel to wipe a wipe, or with a hand-free hand sanitiser rubbed; children's toys, every few days have to be rubbed with alcohol; regular use of disinfectant, baking soda to a family of underwear, pants disinfection ......
Today, we will tell you whether these common disinfection methods are reassuring or just a psychological comfort.
I. Note: Cleaning ≠ Disinfection ≠ Sterilisation.
Cleaning: is the process of removing organic, inorganic and visible contaminants from the surface of an object, i.e. washing away visible dirt. For example, washing the rice particles and grease spots off a child's clothes is generally just a level of cleaning. Cleaning this step can only remove a large part of the bacteria, but can not completely put them out.
Disinfecting: Disinfecting is a little more advanced than cleaning, in that it takes out all bacteria, viruses, fungi, and other harmful things except sprouts. If rinsing out the residue on the bowl with water is considered cleaning, then boiling it in hot water is considered disinfecting. Commonly used disinfection methods include high-temperature disinfection, liquid chemical disinfection (such as alcohol, chlorine disinfectant, glutaraldehyde, hydrogen peroxide, povidone-iodine, etc.), and gas chemical disinfection (such as ozone).
Sterilisation: probably the highest level of ‘cleanliness’. Strictly speaking, professional sterilisation can kill all micro-organisms on the items, and all bacteria and dirt will be eliminated. Commonly used sterilisation methods include high temperature sterilisation (e.g. pressure steam sterilisation, dry heat sterilisation), chemical sterilisation (e.g. ethylene oxide gas, low temperature formaldehyde steam, peroxyacetic acid, etc.).
II. Is it possible to sterilise dishes by boiling water and sterilising them in a steriliser?
1. Scald the dishes with boiling water.
If it's really ‘hot’, then it definitely works! Bacteria and viruses are not afraid of hot water, even though they are very aggressive. However, the conventional practice is not able to achieve the effect of disinfection, because in order to achieve the effect of disinfection, at least two conditions must be met at the same time: ① to disinfect things completely submerged in water; ② heated and boiled to 100 ℃ for at least 5 minutes. In comparison, it is easy to see that our daily so-c
2. Sterilising dishes in a steriliser.
Some restaurants are equipped with a steriliser, can this sterilise the dishes? No. Sterilisers can eliminate most pathogenic microorganisms. However, it is important to check if the steriliser is electrified or if it is dirty.
To sum up, if you choose to eat out, don't bother too much about sterilising your dishes, because the routine practice of ‘swishing them in boiling water’ really doesn't make much sense, just clean them. If you really want to boil them, try to pour boiling water just out of the pot, and don't boil them for less than 5 minutes. Although it doesn't reach 100℃, it can kill most of the pathogenic microorganisms.
If you want to talk about the disinfection of dishes at home, it is also very simple, that is, put into the pot to boil. Although it is said that boiling disinfection is not up to the level of sterilization of medical professionals, but in our daily lives, boiling disinfection kills most of the pathogenic microorganisms, the rest of the stubborn molecules
3. The correct way to sterilise dishes
● Put clean dishes into a clean pot, press all the dishes into clean water, and then count the time from when the water boils and boil for 15 minutes. Although boiling to 100°C for 5 minutes kills most bacteria, viruses, fungi and other pathogens, it is generally recommended to boil them for 15 minutes as it may not sterilise some things, such as the nooks and crannies of the cutlery, thoroughly.
● Do not sterilise plastic dishes by boiling.
● Generally, sterilising once a week is fine.
●If there are members of the family with low resistance, such as infants, pregnant women, and patients (especially those with infectious diseases), it is recommended to intensify disinfection, and once a day is recommended.
III. Is it possible to disinfect hands with wet wipes and hand sanitiser?
1. Wiping hands with wet wipes
The use of wet wipes is really high! If your child's hands are a bit dirty, you need to touch one to wipe them off; if you feel the bowl is dirty when you eat out, you need to touch one to wipe it off. However, when you use wet wipes, do you pay attention to which kind of wipes you use? With or without disinfectant function? With or without skin care function? Does it smell good?
Currently on the market according to the use of wet wipes are divided into three categories: the first category is only clean and can not be sterilised ordinary wet wipes, mainly used for skin cleaning, wet. The second category is with antibacterial function of hygiene wipes, can inhibit the growth of bacteria, but can not reach the level of disinfection, mostly used for skin. The third category is disinfectant wipes, which can reach the level of disinfection and are used for disinfecting the skin or the surface of objects.
So, if you go out and there is really no current condition to wash your hands, it is OK to wipe your hands with cleaning type wipes. But if you have the conditions to wash your hands, don't be lazy!
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2. Use hand sanitiser
‘Since there are so many types of wipes, it's hard to choose, and it's not safe to wipe my hands, can I use hand sanitiser?’ In fact, hand sanitiser is not something that can be used casually on a daily basis!
Now on the market to sell free hand sanitiser, is to replace the running water rinse hand sanitiser, containing antiseptic (alcohol-based) and skin care ingredients, can be quickly evaporated, so it is also called quick-drying hand sanitiser, commonly used in hospitals, banks, supermarkets, airports and other public places. However, due to the disinfectant ingredients often have a certain degree of irritation, despite containing skin care ingredients, but still may cause skin allergic reactions; and quick-drying hand sanitiser is flammable, to keep away from open flames, alone to the children to use if it is very unsafe.
Also, although the hand sanitiser can achieve the effect of disinfection, but the children play with mud, paint, etc. itself is still sticky in the hands, rubbing a may not be able to make these completely disappeared, which is the typical disinfection but not clean! In addition, there are so many chemicals in this hand sanitiser, if your child accidentally puts his fingers in his mouth when eating, is it also make you scared ah. So in daily life, especially for those children who often get their hands dirty, do not recommend using hand sanitiser instead of hand washing!
IV. Is it possible to sterilise children's toys by rubbing them with alcohol?
Young children like to stuff toys into their mouths and chew on them, and parents who love cleanliness can't stand to see that toys have a lot of germs on them, which can cause illnesses to enter through the mouth! So, you have to wipe your child's toys with alcohol regularly to sterilise them before you can rest assured.
This really should not be! Alcohol is ethanol, is a disinfectant can reach the level of disinfection, clinical also commonly used concentration of 70% ~ 80% of alcohol to disinfect the skin and objects. However, alcohol is also irritating, especially to children, and can easily cause dermatitis. It is not recommended to use alcohol to disinfect in daily life, especially food alcohol which contains many additives, and even more so to wipe children's toys.
The right way to sterilise toys
Heat and humidity resistant toys can be sterilised by steam, heat intolerant toys can be sterilised by wiping the surface with disinfectant wipes and then rinsing with water before drying, fur and cotton toys can be cleaned and then exposed to the sun.
If your child is generally healthy, then toys don't have to be strictly sterilised every time they are played with, as long as they are kept clean after use. Exposure to natural bacteria that are common in life will help your child to build up a well-developed micro-ecosystem and improve his/her resistance.
V. Is it possible to disinfect underwear by washing them with deodorant and baking soda?
Detergent: The main ingredient of commercially available detergent is chlorine-containing oxidant, which has the combined effect of disinfecting, bleaching and washing, but it is irritating and corrosive to the skin, and may cause damage to the skin, especially the delicate parts protected by underwear and panties, if it is not washed clean. Therefore, it is not recommended to wash underwear and panties with eliminating detergent on a daily basis.
Baking soda: baking soda is sodium bicarbonate, dissolved in water, weakly alkaline, but is not a disinfectant, and has no bactericidal effect. Most bacteria live in an acidic environment, and the weak alkalinity of baking soda can inhibit the growth of these bacteria to a certain extent, so it can only be said that there is a certain degree of bacteriostatic effect, but it can not kill bacteria. And baking soda on the skin and mucous membranes also have a certain degree of irritation, heated to 50 ℃ to become sodium carbonate, irritation and corrosive stronger, can not be used indiscriminately.
In fact, although the underwear, underwear close to the skin, but do not need to be strictly disinfected every time, wash and dry can be.
Attention: Daily Disinfection Standards
Whatever you use on a daily basis, it is most important to keep it clean and then sterilise it when necessary. Because human skin and mucous membranes are inhabited by bacteria, many of which are beneficial to the human body. A small amount of common bacteria can also help the body to form a normal micro-ecosystem and improve its resistance. If you live in a strictly sterile environment all the time, your body's resistance will become weaker and weaker!
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