How to choose a thermos cup?

Recently, Black Panther band drummer Zhao Mingyi.

His thermos is on fire.

Here's the thing.

A middle-aged photographer went to take pictures of the panther.

Come back and sigh:

"It's hard to imagine! It's unimaginable!

In those days, ordinary people in Iron Man,

Now he comes to me with a thermos cup. "

Subsequently, Zhao Mingyi himself published Weibo.

Suddenly, netizens teased one after another.

Don't soak Lycium barbarum in a thermos.

Is the last stubbornness of middle-aged men.

However, some netizens said:

Who said that thermos cups are exclusive to middle-aged people? !

Young people also need it.

Indeed, the thermos cup is such a thing.

Absolutely "suitable for all ages"

Necessary items for home travel.

However, there are many kinds of thermos cups on the market.

The price also varies greatly.

So different prices of thermos cups

What's its quality and heat preservation effect?

What misunderstandings do our consumers have about thermos cups?

Thermal insulation effect test

We bought six different prices in the market.

Different brands of vacuum cups.

Then put hot water in it.

Then put the cup in the refrigerator and turn it into a big ice cube.

See if the water in the cup is still hot.

After testing, the performance of thermos cups with different prices is obviously different.

The temperature difference between the first place and the last place reached 3 1.9 degrees.

Looking at the price, it is not that the more expensive the insulation.

So ... what kind of insulation effect is qualified?

At present, there is no rigid requirement for the insulation efficiency of thermos cups in China.

But the reference standard in the industry is

100 degree water for 6 hours,

If the water temperature drops from 100℃ to above 70℃,

They are all qualified and good products.

If it drops to 30 or 40 degrees,

That shows that this thermos cup is poor in technology and has problems.

Then we conducted a test.

The results show that after 6 hours of heat preservation,

Only two thermos cups have a water temperature below 70 degrees.

Dismantle the thermos cup violently

Open it and find the cheapest conference cup.

After cutting the base, I found that it was actually filled with cement.

Consumers generally believe that the heavier the thermos cup, the more authentic it is.

Unexpectedly, unscrupulous merchants put cement into the base to gain weight and deceive consumers.

Heavy metal test

It is said that there is also the problem of heavy metal precipitation in inferior thermos cups.

This is a safety problem that will affect health.

Is there any heavy metal precipitation in the thermos cup we bought?

Continue to ask experts to test us.

The test results show that,

A brand of children's thermos cup worth 109 yuan,

The precipitation amount of nickel is 0.37mg/d㎡.

It is nearly three times higher than the national standard (0.1mg/dm2).

Heavy metals are seriously exceeding the standard.

The physical and chemical indexes of the other five cups meet the requirements of the national standard.

Nickel can accumulate, and it accumulates most in kidney, spleen and liver.

Can induce nasopharyngeal carcinoma and lung cancer.

If children use this kind of thermos cup,

A close call.

In addition to the problems exposed by this test,

There are still many patterns of thermos cups on the market that consumers don't know.

For example, many manufacturers pack in thermos bottles.

Deliberately declare that it is made of 304 steel, and the material is excellent.

But in fact, 304 steel is just a publicity stunt.

Experts advise consumers to choose austenitic stainless steel when buying.