So why don’t people choose glass thermos cups?

There are actually many different materials for thermos cups on the market now, but if you want to say which one is more popular, it must be stainless steel.

But some people think that stainless steel thermos cups also have many shortcomings, and stainless steel thermos cups are divided into 304 and 316. It is particularly troublesome to choose different materials. It is difficult to distinguish the quality of the thermos cup.

Since everyone says that it is difficult to distinguish the quality of stainless steel thermos cups, why are people reluctant to choose glass thermos cups? Should I choose 304 or 316 stainless steel thermos cup?

Let’s take a look today.

Reasons why you are not willing to choose a glass thermos cup

①The glass thermos cup has poor thermal insulation effect

Friends who have used glass thermos cups should also know that the effect of glass thermos cups is much worse than that of stainless steel thermos cups. Maybe the boiling water we poured in in the morning has become cold before noon, which is not the same as ordinary cups. Big difference.

On the one hand, the thermal insulation effect of the glass itself is poor, and on the other hand, because the glass is relatively thick, the vacuum layer that plays the role of thermal insulation is squeezed, which will also affect the overall thermal insulation effect of the thermos cup.

②The glass thermos cup is fragile

The most important reason why many friends do not choose glass thermos cups is that glass thermos cups are too fragile.

Friends who are familiar with glass also know that glass itself is a relatively fragile material. Usually if the cup is dropped on the ground, it will break. Sometimes, even if we touch the thermos cup with a little force, it will break, and the glass fragments will break. There are some safety hazards that may scratch us.

For some office workers or friends who go to school, if they put the thermos cup in their backpack in the morning, it may break accidentally on the road, and it is not convenient to use it.

③The glass thermos cup has small capacity

A big problem with glass bubbles is that they are too thick, because the material of the glass itself is much thicker than stainless steel. In order to achieve the thermal insulation effect, the cup made is thick and heavy.

Not only is it very difficult to hold, but because the secretion is too thick, the space for boiling water will become very small. Because of this, the capacity of glass protective cups on the market generally does not exceed 350 ml, and the capacity is relatively small. Small.

Because of these shortcomings of glass thermos cups, although there are glass thermos cups on the market, sales are far lower than stainless steel thermos cups.

Material of stainless steel thermos cup

The insulation effect of stainless steel thermos cups is much better than that of glass thermos cups, and they are not prone to breakage during use, and there is no need to worry about glass shards scratching us, so they are more popular.

Nowadays, the common stainless steel thermos cups on the market mainly include 304 and 316 stainless steel types. So which one should we choose?

In fact, both 304 and 316 are food-grade stainless steels that can directly come into contact with our drinking water and can be used to make thermos cups.

304 stainless steel is harder and less prone to scratches and bumps, while 316 stainless steel has stronger corrosion resistance.

Although 304 stainless steel may not be as corrosion-resistant as 316 stainless steel, it is fully in line with the standards for making thermos cups, and the oil, salt, sauce, vinegar and tea we see in life will not corrode 304 stainless steel.

Therefore, as long as you have no special needs, you only need to spend a few dozen yuan to buy a 304 stainless steel thermos cup, which is completely sufficient.

According to normal production requirements, the inner tank of the thermos cup will be marked with 304 or 316. If there is no direct marking, it is very likely that other grades of stainless steel are used, which may not meet food grade requirements, so everyone is Also pay attention to it when purchasing.

If you will put milk or other carbonated drinks in the thermos cup, you cannot choose 304 stainless steel.

Because milk and carbonated drinks are corrosive to a certain extent.

If we only install it occasionally, we can choose to use a 316 stainless steel thermos cup;

But if you frequently place these liquids, you need to choose a thermos cup with a ceramic liner.

The ceramic-lined thermos cup is based on the original thermos cup, and is coated with a layer of ceramic. The stability of the ceramic is relatively strong, so it will not chemically react with any liquid, has better thermal insulation performance, and is more durable.

Write at the end:

In normal life, everyone only needs to choose a thermos cup made of 304 or 316 food-grade stainless steel. Of course, if you don’t go out much and are more cautious when using it, you can also consider buying a glass thermos cup.