Stainless steel thermos cups are generally used to store liquids (food) such as hot and cold water, beverages, etc. It is a vacuum container with heat preservation function. When purchasing and using stainless steel thermos cups, consumers are advised to master the "four steps" and "five attentions", choose safe products, and regulate safe use.
Four steps Choose a safe product
When purchasing stainless steel thermos cups, in addition to paying attention to performance indicators such as inner tank material, thermal insulation performance and impact resistance, you should also scientifically select high-quality stainless steel thermos cups through the four steps of smelling, seeing, touching, and testing.
Smell A high-quality stainless steel thermos should have no peculiar smell, or the smell is slightly easy to disperse. If there is a strong smell after opening the cup lid and it does not disperse for a long time, it means that the product is dangerous to use and should be avoided and returned in time.
Second look Check whether the label has information such as product name, specification, heat preservation energy efficiency, name of the producer and (or) distributor; whether the material type and composition of the stainless steel cup body are clearly marked (need to comply with the "National Food Safety Standard for food contact products) Requirements for stainless steel materials in "Metal Materials and Products"), or expressed by our country's standard grades or unified digital codes, not only vague information such as "high-quality stainless steel" and "high-grade stainless steel"; whether to indicate the material of plastic parts (sealed The cover should be made of polypropylene material, which is safe and heat-resistant). Check whether the surface of the product is uniform in color, whether there are cracks or gaps, whether the printed text and patterns are clear and complete, and whether the electroplated parts are exposed, peeled, rusted, etc.
Three touches The surface of the inner and outer tanks of high-quality stainless steel thermos cups should be polished uniformly, without bruises, scratches or burrs; the mouth of the cup and the weld should be smooth and clean without burrs.
Four tests Inject boiling water into the stainless steel thermos cup, tighten the cup lid, after 2-3 minutes, you can feel whether there is a significant temperature rise by holding it in your hand, and test the thermal insulation performance; pour boiling water, tighten the cup lid, and turn it upside down for 4-5 minutes, The sealing performance can be tested by the presence or absence of leakage. In addition, the spin performance and the convenience of disassembly, washing and reinstallation can also be tested by opening and closing the cup lid and disassembling various parts several times.
Five Attention Standardized safe use
First of all, it is necessary to clean and disinfect the stainless steel thermos cup before use. The safer method is to use boiling water or neutral detergent to scald and disinfect.
Secondly, it should be noted that stainless steel thermos cups can not hold everything. It is not suitable to hold acid and alkali corrosive liquids, so as not to damage the inner tank and sealing cover; it is not suitable to hold dry ice, carbonated drinks, etc., so as to avoid the continuous generation of carbon dioxide inside the cup to increase the pressure in the cup, causing the cup cover to come out, which may cause injury; it is not suitable for a long time Containing high-protein foods such as soy milk and milk are easy to breed bacteria and cause nutrient loss; it is not suitable to contain acidic foods such as fruit juice for a long time, so as to avoid electrochemical reactions in the inner tank of the stainless steel thermos cup, which will affect human health.
Third, pay attention to personal safety when using stainless steel thermos cups. When filling boiling water, be careful not to fill it too full. It is recommended to be at least 2 cm below the bottle mouth to prevent boiling water from overflowing and scalding when the lid is opened; do not shake the stainless steel thermos cup violently when the lid is closed to prevent pressurization inside the cup. Injured by a popped lid or hot water spray when opening the lid. Children should be supervised by their parents when using stainless steel thermos cups, and avoid holding liquids over 50°C to avoid the risk of scalding children.
Fourth, avoid beating and bumping the stainless steel thermos cup during use, so as not to cause damage or deformation of the cup body. If the welded part is no longer firm, it will destroy the heat preservation effect and shorten the service life of the thermos cup.
Finally, remember to clean the stainless steel vacuum flask regularly. When cleaning, it is advisable to use a soft cloth to avoid vigorous friction, and it is not suitable to be boiled for disinfection. If it is not used for a long time, it should be cleaned and fully dried.
