How To Choose A Thermos Cup?

1. If you want a good thermal insulation effect, you can't choose the inner tank is purple sand, ceramics, glass, etc., you must have a 304, 316 stainless steel thermos cup.

2. Look at 304 stainless steel (food grade), 316 stainless steel (medical grade), and 201 (industrial use) cannot be selected, but it is unlikely that 201 stainless steel cups will appear.

3. Identify the type of stainless steel: 201 stainless steel has low nickel content, high manganese and carbon content, dull color, not smooth and easy to rust. 304, 316 stainless steel has high nickel content, bright color, not easy to rust, and no peculiar smell. 316 stainless steel is added with 2% molybdenum on the basis of 304, but the texture is softer, and it is generally used for the inner liner of the thermos.

In fact, 304 stainless steel is completely enough, and 316 stainless steel is used on the thermos cup, which has the feeling of killing a chicken with a knife.

4. If the heat preservation effect can be 60 degrees or 65 degrees in 6 hours, it is a good cup. If you dare to mark the heat preservation effect at 80 degrees, it is not credible. Personally, I think it's just drinking water, and there is no need to pursue the ultimate heat preservation time. Of course, except for those with special needs, such as climbing Mount Everest or something.

5. The heavier the thermos cup, the better, the thin two-layer stainless steel, the weight of the traditional thinning process is about 200g or more, and the thin ultra-light cup body is generally about 160~170g. That is the weight of your phone.

6. It is best to choose an integrally formed cup, the one with no welds on it, or laser welding, which has the best thermal insulation effect. When I was a child, I used a stainless steel thermos cup. After using it for a few years, I fell on the ground several times during the period, and the liner was separated from the cup body. . . It is separated from the weld seam.

7. Pick up the cup and take out all the moisture-proof agent, signs, etc. inside, shake it, and listen to see if there is any abnormal sound. You can't shake the pure vacuum cup. If there is a sound, or the bottom of the cup obviously feels heavier, the seller tells you that it is a thermal insulation material. Don't listen to him fooling around. What thermal insulation material can have a good vacuum?

8. The cup cover is also preferably one-piece, hollow, so that it can better keep warm. The thermal insulation effect of the ordinary screw cap is better than that of the bouncing thermos cup.

9. Cup lid material: Cup lid, sealing lid, etc. should be made of PP (polypropylene), Tritan material, sealing ring, straw, etc. should be made of food-grade silicone material. This kind of material has better high temperature stability and will not decompose harmful substances.

10. Looking for cups on the Internet, look at the sales volume, and look at the follow-up comments in the evaluation. Generally speaking, you can see a particularly poor or particularly good user experience in the follow-up review, which can avoid pitfalls to a certain extent.

11. It must be simple in structure and easy to clean. After all, it is a guy who drinks water every day. The less sanitary dead corners, the better, to prevent diseases from entering through the mouth.

12. Buying online can also avoid many pitfalls of offline buying, such as good returns and exchanges, cheaper, etc., which will not be discussed here.

13. How to detect the thermal insulation effect of the cup? Pour in hot water and check the heat preservation time. Or find two cups, pour hot water into the cup you bought, and measure the outer walls of the cups after 5 minutes to see if the temperature of the outer walls of the two cups is the same.

14. I can't believe the seller said that this cup has any magical functions, such as magnetized water, hydrogenation, point solution and other health words. Drinking water is to replenish water to the body, and it will not have any other functions. At present, there is no research in the country that can prove that the water is good for the body after treatment.

15. Choose cups produced by big brands and big manufacturers, but also pursue cost-effectiveness. A few hundred dollars is already very expensive. If it is more than a thousand dollars, please consider it carefully.