If you are not using a pure titanium thermos cup

A handy, safe, easy-to-use and exquisite thermos cup will bring you special warmth on every cold winter day

Especially for those who care about health, the best partner of thermos cup is no longer just wolfberry, but also can be used to make tea, dates, ginseng, coffee...

However,the thermos cupproducts on the market are made of different materials and mixed, which really dazzles consumers.

How to choose a thermos cup?

I roughly sorted out several key points for buying a thermos cup:

Safety, easy to clean, and heat preservation, among which "safety" is the first consideration.

Of course, on the premise of meeting the needs, price is also an important consideration.

1. Stainless steel thermos cup
Most of the thermos cups on the market are made of stainless steel, which is resistant to high temperature and has good heat preservation performance.

But there is an important safety hazard of stainless steel, that is, it is possible that heavy metals exceed the standard! This problem is too big!

Stainless steel materials are usually divided into three types, and the "codes" are 201, 304 and 316 respectively.

Most of the unqualified thermos cups use 201 stainless steel as the liner of the thermos cup.

201 stainless steel has a high manganese content and poor corrosion resistance. If it is used as the liner of the thermos cup, long-term storage of acidic substances may cause manganese precipitation.

Metallic manganese is an essential trace element for the human body, but excessive intake of manganese will harm the body, especially the nervous system.

Imagine if a child drinks this kind of water all day, the consequences will be very serious!

Therefore, the stainless steel material that comes into contact with food must be food grade. The most commonly used food-grade stainless steel is 304 stainless steel with good corrosion resistance. In order to be named 304, it needs to contain 18% chromium and 8% nickel to be justified. However, merchants will mark the word 304 in a conspicuous position on the stainless steel product, but marking 304 does not mean that it meets the requirements for food contact use.

304 stainless steel is relatively acid-resistant, but it is still prone to pitting corrosion when encountering substances containing chloride ions, such as salt solutions. 316 stainless steel is an advanced version:

It adds metal molybdenum to 304 stainless steel, which makes it more corrosion-resistant and more "tough". Unfortunately, the cost of 316 stainless steel is relatively high, and it is mostly used in high-tech fields such as medical and chemical industries.

Therefore, if you are buying a stainless steel thermos cup, you must pay attention to the following points:

First, buy through formal channels and try to choose products from well-known brands. Consumers should pay attention to whether the instructions, labels and product certificates are complete when purchasing, and avoid buying "three-no products". Brands like Fuguang and Supor are trustworthy.

Second, check whether the product is marked with its material type and material composition, such as austenitic SUS304 stainless steel, SUS316 stainless steel or "stainless steel 06Cr19Ni10".

Third, use it reasonably. Although in theory, as long as the production process meets the standards, the corrosion resistance of these stainless steels is definitely unbeatable, and they are very fragrant when used to make thermos cups. But if you use it improperly, a small amount of heavy metals such as chromium, nickel, and manganese will still be precipitated when holding acidic and alkaline beverages such as coffee, tea, and juice.

2. Glass thermos
Many people complain that glass cups are fragile and inconvenient to carry, but it is the "king of health" among all cups.
It does not contain organic chemicals, and the cup body is smooth and not easy to breed bacteria.
Glass cups can be divided into single-layer glass cups, double-layer glass cups, crystal glass cups, glass office cups, glass mouth cups, etc.
Double-layer glass cups, as the name suggests, are glass cups that are divided into two layers when they are made, which can play a role in heat insulation and scalding when used.
The raw material of the double-layer glass cup is high borosilicate glass, food-grade and catering-grade glass, which is fired at a high temperature of more than 600 degrees. It is usually made of high borosilicate glass cup tubes. The large and small inner and outer tubes are baked by technicians under a sealing machine. It is a new type of environmentally friendly tea cup, which is more and more popular.
Why is the titanium cup so expensive and so popular?
Because, compared with ordinary stainless steel thermos cups, titanium cups have no disadvantages except that they are a little more expensive.

01 Not afraid of strong acids and alkalis

Can hold tea, carbonated drinks, juice, and milk

Titanium, known as a biometal, is widely used in medical devices and human implants. It is a healthy and non-toxic element recognized by the world. It has no effect on human autonomic nerves and taste nerves. It is resistant to strong acids and alkalis. Whether it is coffee, juice, fruit tea, fruit powder, carbonated drinks, or milk, it can easily hold it without any heavy metal precipitation, which is healthy and safe.

02 Unmatched corrosion resistance

The surface of titanium metal has a firm titanium oxide protective film, and its chemical properties are extremely stable. Even the king of acids, "aqua regia", cannot corrode it. Therefore, pure titanium thermos cups can store acidic and alkaline drinks, strong tea, soy milk products, coffee, carbonated drinks, Chinese medicine stews, etc. for a long time, without producing the rust smell of metal products, and the drinks will not produce odors.

03 Natural antibacterial ability, drinks are more fresh

Under the irradiation of light, titanium will play a photo-antibacterial role, that is, after titanium oxide is exposed to light, the positive holes and negative electrons on its surface are released. This energy dissolves with the oxygen contained in the water to form active oxygen, and decomposes water to produce hydrogen and oxygen. In this process, under the action of hydrogen and active oxygen, sterilization and decomposition of organic matter are carried out, and at the same time, miscellaneous bacteria, sour taste, etc. are also decomposed, which can make the taste of the drink more mellow.

04 Lightweight and easy to carry, easy to carry

Pure titanium material is lighter than ordinary metals. Under the same capacity, the weight of pure titanium material is 43% of the weight of stainless steel. So if you are a person who loves sports, loves traveling, and often travels on business, it is very convenient to bring a pure titanium thermos cup.

05 Natural excellence, healthy and safe

People all know that the color of pure titanium itself is dull and dull. But it can show different colors at different temperatures. If this color is well mastered, the pure titanium thermos cup can show gem-like colors.

And not a drop of paint is used, all are excellent under natural conditions, healthy and safe. There is no need to worry about paint falling off after long-term use.

If the financial strength allows, it is natural to go directly to the titanium cup