The thermos cup is a cup that we usually use to keep hot water warm, but in fact, the thermos cup also has a certain heat preservation effect on low-temperature beverages. However, even so, do not use a thermos cup to hold iced carbonated drinks, fruit juices, and dairy products such as milk, because these are acidic, otherwise it will affect the inner tank of the thermos cup, and it is easy to break out. question. So what exactly is going on?
What happens if you put carbonated drinks in a thermos cup?
Carbonated drinks are acidic liquids, and thermos bottles cannot hold acidic things. If the inner container of the vacuum flask is made of high manganese steel and low nickel steel, it cannot be used for acidic beverages such as fruit juice or carbonated beverages. The material has poor corrosion resistance and easily precipitates heavy metals when exposed to acids. Long-term acidic drinks may damage human health. In addition, fruit juice is not suitable for high-temperature storage, so as not to destroy its nutritional content; high-sweet drinks can easily lead to microbial growth and deterioration.
Will Coca-Cola corrode the thermos cup?
Coke will corrode the liner of the vacuum flask. Carbonated drinks, milk and dairy products all contain acid. The acidic substance can cause a chemical reaction on the stainless steel of the thermos, causing the beverage to spoil and taste bad. Moreover, the stainless steel of the vacuum bottle will also rust due to oxidation, which shortens the service life of the vacuum bottle. Not only is it harmful to its own substance, but it can also damage the thermos. It appears that the substances can never fill the thermos.
Tips for buying stainless steel cups
1. Thermal insulation performance.
The thermal insulation performance of the vacuum bottle mainly refers to the inner container of the vacuum bottle. After filling with boiling water, tighten the cork or thermos cap clockwise. After about 2 to 3 minutes, touch the outer surface and bottom of the cup with your hands. If you notice a warm feeling, it means that the insulation is not good enough.
2. Sealing.
Pour in a glass of water, screw on the lid, and invert for a few minutes, or shake a few times. If there is no leakage, it proves that its sealing performance is good.
3. Health and environmental protection.
It is very important whether the plastic parts of the thermos are healthy and environmentally friendly. Can be identified by smell. If the thermos cup is made of food-grade plastic, it has little smell, bright surface, no burrs, long service life, and is not easy to age; if it is ordinary plastic, it will be inferior to food-grade plastic in all aspects.
4. Identification of stainless steel materials.
For stainless steel vacuum bottles, the quality of the material is very important. There are many specifications of stainless steel materials. 18/8 means that the stainless steel material contains 18% chromium and 8% nickel. Only materials that meet this standard are green products.
Coke will corrode the liner of the vacuum flask. Carbonated drinks, milk and dairy products all contain acid. The acidic substance can cause a chemical reaction on the stainless steel of the thermos, causing the beverage to spoil and taste bad. Moreover, the stainless steel of the vacuum bottle will also rust due to oxidation, which shortens the service life of the vacuum bottle. Not only is it harmful to its own substance, but it can also damage the thermos. It appears that the substances can never fill the thermos.
Post time: Jan-14-2023