What is suitable for a thermos cup?
What can be soaked in a thermos mainly depends on the material of the thermos. Generally speaking, there are two kinds of thermos cups: ceramic and stainless steel. Ceramic thermos cup will not react with the beverage in the cup, and can be used for making tea and coffee. , but the time should not be too long, otherwise it is easy to deteriorate.
Not suitable for making tea for a long time: the main difference between a thermos cup and a general teacup is that it has a long heat preservation time and a slow heat dissipation speed, and because of this feature, the extraction rate of tea juice is high. It is suitable for tea that is not easy to leach quickly, but it is not suitable for brewing delicate tea and should not be stored at high temperature for too long, otherwise it will have a stuffy taste. In addition, if the tea leaves are soaked at high temperature for a long time, the aromatic oil in the tea leaves will evaporate rapidly, reducing the fragrance of the tea leaves, and the vitamin C contained in the tea leaves will also be destroyed, thus losing the health care function of the tea leaves.
Not suitable for keeping coffee warm for a long time: putting coffee in a thermos for a long time will affect the taste of coffee, and it will easily turn sour after a long time, and it will also easily form coffee stains that are difficult to clean, which will affect the service life of the thermos.
What are the skills to buy a thermos cup?
Choose a healthy thermos: Whether the plastic parts of thermos are healthy and environmentally friendly is very important. Can be identified by smell. If the thermos cup is made of food-grade plastic, it has small smell, bright surface, no burr, 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.
When choosing stainless steel thermos cups, we should distinguish the types of stainless steel used: for stainless steel thermos cups, the quality of stainless steel material is very important. There are many specifications of stainless steel materials, among which 18/8 means that the composition of stainless steel materials contains 18% of chromium and 8% of nickel. Only materials that meet this standard are qualified stainless steel materials and green products.
Thermal insulation performance is an important consideration: put in hot water and contact the surface of the thermos cup after 2-3 minutes. If there is obvious temperature rise, the vacuum heat insulation performance has been lost.
Sealing will also determine its heat preservation performance: the quality of the cup cover pad determines the sealing performance of the cup, and the Sinoe cup cover adopts natural silicone ring, which is extremely sealing; The material and technology of the cup bottom pad reflect the humanistic feelings of an enterprise. The anti-skid pad at the bottom of Sino Cup is made of TPR material, which is non-toxic and corrosion-resistant.