Can vacuum cups be used to make tea?

 A vacuum cup is generally a water container made of ceramic or stainless steel and vacuum layer, with a lid at the top and a tight seal. The vacuum insulation layer can delay the heat dissipation of water and other liquids in the interior, so as to achieve the purpose of heat preservation. A thermos water bottle is developed from a vacuum bottle, and its heat preservation principle is the same as that of a vacuum bottle, except that people make the bottle into a cup for convenience.

 

 

Function of vacuum cups

The appearance of the vacuum cup is bright and clean without peculiar smell. After pouring boiled water, if the exterior of the hot water flask is not hot, then it is a good flask. The inner and outer parts of the vacuum cup are made of stainless steel and refined by advanced vacuum pumping technology. It has elegant shape, seamless inner container, good sealing and heat preservation performance. You can put ice cubes or hot drinks in it. At the same time, functional innovation and detailed design make the new vacuum cup more connotative and practical.

 

Multifunctional-"one cup for multiple purposes" has become a popular practice in new best coffee thermos. Almost every vacuum cup has its own unique characteristics, and some have double cover design. When driving, just press the red button in the middle, and the water will automatically flow out without splashing on the car; Some have a tea partition design in the middle of the vacuum cup, which can quickly filter tea and tea water, which is very suitable for white-collar workers in the office; There is also a double cup design, and the bottom lid also has a dark compartment for holding tea, sugar and coffee. The vacuum liner made of stainless steel double layer can not only hold boiled water, but also hold ice water, etc.

 

 

Instructions

1. Before using the new thermos stainless king, it should be scalded with boiling water (or some edible detergent) for several times and disinfected at high temperature.

2. Before use, please preheat (or precool) with boiling water (or cold water) for 5-10 minutes to make the heat or cold preservation effect better.

3. Please drink hot drinks slowly to avoid scalding.

4. It is not advisable to keep carbonated drinks such as milk, dairy products and fruit juice in the thermos water bottle kids for a long time.

5. After drinking, please tighten the lid to ensure hygiene and cleanliness.

6. When cleaning, use a soft cloth and edible detergent diluted with warm water. Do not use alkaline bleach, metal vegetable cloth, chemical rag, etc.

7. The inside of the classic vacuum bottle sometimes produces some red rust spots due to the influence of iron and other substances contained in the contents. It can be soaked in diluted vinegar with warm water for 30 minutes, and then thoroughly cleaned.

8. After use, please clean the stainless steel thermos and make it fully dry.

 

 

Make tea in a vacuum cup

Most vacuum cups are sealed for heat preservation. Because of the structure of tea itself, it will be fermented in a sealed condition, and the fermented tea will produce some harmful substances to human body. Tea is rich in protein, fat, sugar, vitamins and minerals, and is a natural health drink. Tea polyphenols, caffeine, tannins, tea pigments, etc. contained in tea have many pharmacological effects. When tea is soaked in high temperature water in a hot water thermos for a long time, just like decocting with warm fire, tea polyphenols, tannins and other substances will be leached out in large quantities, which makes the tea strong and bitter. Vitamin C and other nutrients will be destroyed when the water temperature exceeds 80℃. Soaking at high temperature for a long time will cause excessive nutrition loss, thus reducing the health care function of tea.

 

At the same time, because the water temperature is kept high all the time, the aromatic oil in tea will volatilize quickly and a large amount of tannic acid and theophylline will seep out, which not only reduces the nutritional value of tea, but also reduces the aroma of tea and increases harmful substances. If you drink this kind of tea soaked in small thermos flask for a long time, it will endanger your health and lead to many diseases of digestive, cardiovascular, nervous and hematopoietic systems.

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