Is the stainless steel thermos mug of 304 safe

It depends. Whether a material that comes into contact with food is harmful depends on the amount of harmful substances it may precipitate. Otherwise there is no point.

In fact, at least half of the stainless steel material is harmful to the human body, but it does not enter the body through food.

Whether the stainless steel thermos cup is harmful or not, in addition to stainless steel, the materials of the cup lid and sealing ring are within the detection range. All contain harmful substances, and the key depends on the speed and quantity of precipitation into food.

The material of 304 stainless steel does not contain components that will precipitate harmful substances beyond the standard, so it is generally considered that qualified 304 stainless steel must meet food safety standards. And the raw material of stainless steel is not something that can be produced by a small workshop. So it's relatively safe.

Lids and seals are often the areas that need attention.

The stainless steel thermos mug made of 304 material is safe, and the stainless steel mug made of 340 stainless steel is made of 340 material.

It is a food-grade material and is very safe to use.

Now most of the thermos cups on the market use 304 material, and the material of 304 is much higher than the general 201, so it must be higher than 201. 304 is imported stainless steel plate, and 201 is domestic stainless steel plate. 304 is resistant to high temperature, has excellent corrosion resistance, and is generally widely used in medical equipment and food utensils, so as the material of the thermos cup, it will cause little harm to the human body.

Compared with the 304,316 thermos cup, the material is better, and of course the cost will be higher. The corrosion resistance and high temperature strength are particularly good, and the results will be very good even under very harsh conditions, mainly because of its good work hardening type. It is stronger than 304 material, and the service life will be stronger.

Maybe many people only know 304 and 316, in fact, there is another one, that is, 316 mirror stainless steel, it can hold any soup drinks, like a lot of children's cups are made of this material, very suitable for children to use, and don't worry about children using drinks or something. It is also more resistant to corrosion, while it is also more expensive.

The stainless steel thermos cup of 304 is safe, as long as the bottom of the thermos cup shows 304, it is a qualified product.

Healthy. The stainless steel thermos mug is made of food-grade 304 stainless steel.

As a material, ensure that the amount of heavy metal dissolved in the thermos cup filled with water does not exceed the standard, including lead. At the same time, the inner lid of the regular stainless steel thermos cup is made of PC material, which has no taste and will not be deformed when boiled in boiling water. The rubber ring is made of silica gel, which is also a non-toxic material.

It has many advantages such as good thermal insulation performance, light weight, anti-rupture, anti-corrosion, anti-extrusion, heat resistance and rapid change resistance, and convenient use.

Qualified 304 thermos mug safe.

At present, the mainstream material of the thermos cup market is stainless steel, and heavy metals of nickel and chromium will be added to the stainless steel. The advantages of this stainless steel are high strength, stable performance, strong acid resistance and alkalinity, and the qualified products are harmless to the human body.

Although these products may have shortcomings such as poor color, light weight, and soft hardness, which do not affect the basic use, there may be potential hazards such as excessive heavy metals or precipitation, affecting human health.

How to buy a thermos cup

The first thing consumers need to pay attention to when buying a thermos cup is health. Since it is impossible for consumers to be able to directly distinguish the material of the thermos cup like an expert, it is best to choose qualified regular brand products when purchasing.

Second, look at the material, pay attention to the loss of Kai when buying, check the packaging information of the product. Generally speaking, the packaging or body of the cup has a chemical mark on the material of the cup. Although different brands of thermos cups will be slightly different depending on the difference of their use, it is reasonable to use stainless steel in the range of medical grades such as 304 stainless steel or austenitic stainless steel.

Third, choose products with relatively good thermal insulation effect, consumers can refer to the factors that affect the thermal insulation effect, and choose a thermos cup suitable for capacity, cup caliber and lid. Consumers do not need to blindly pursue large capacity, generally speaking, 350ml-500ml for office use is enough. If you have children at home, need to go out often, and want to bring more hot water, you can choose a 500ml-1000ml cup.

If consumers choose an oversized thermos cup, they must choose one with an auxiliary handle, and do not rely on the strap or hand it alone. It is very heavy after filling with water, so it is necessary to prevent scalding and slipping.

The above content reference: People's Daily Online - Pay attention to the material information when buying a thermos cup.

The 304 thermos cup is not poisonous. 304 stainless steel.

It is a general-purpose stainless steel material, which is a food-grade stainless steel approved by the state.

It is also relatively good in terms of high temperature resistance, with good corrosion resistance and high temperature performance; **It is also relatively cheap and recognized by the majority of consumers, in order to maintain the inherent corrosion resistance of stainless steel, the steel grade must contain more than 18% chromium and more than 8% nickel. As a result, most of the cups are labeled 304.

Thermos cup purchase skillsObserve the quality of the inner and outer surfaces of the thermos cup, the surface of the inner and outer tank of a good thermos cup is generally smooth, without scratches and bumps, and at the same time, pay attention to whether the mouth of the cup is smooth and whether there are welds.

Test the thermal insulation performance of the thermos cup, pour hot water into the cup, tighten the lid of the cup, let it stand for a few minutes, and then touch the outer surface and the bottom of the cup with your hands, if there is an obvious burning sensation, it means that the heat retention of the cup is relatively poor, if there is no obvious feeling, it means that the thermal insulation performance is basically good. Generally speaking, the normal holding time of the thermos cup is more than 6 hours.

34 thermos mugs made of non-toxic. 04 Stainless steel is a general stainless steel material, which is approved by the state as food-grade stainless steel. It also has good high temperature resistance, corrosion resistance and high temperature performance.

Relatively inexpensive and consumer recognized. In order to maintain the inherent corrosion resistance of stainless steel, steel grades must contain more than 18% chromium and more than 8% nickel. So most of the cups are labeled 304.

Selection tips for thermos cups Observe the quality of the inner and outer surfaces of the thermos cup. Generally, the inner and outer surfaces of a good thermos cup are smooth, without scratches and bumps. At the same time, pay attention to whether the cup mouth is smooth and whether there are welds.

Test the thermal insulation performance of the thermos cup. Fill the cup with hot water, screw the lid on, let it sit for a few minutes, and then touch the outer surface and bottom of the cup with your hands. If there is a significant burning sensation, it means that the thermal insulation performance of this cup is poor.

If there is no noticeable feeling, the insulation performance is basically good. Generally speaking, the normal holding time of the thermos cup is more than 6 hours.

*Qualified 304 thermos mug is non-toxic** and can be used safely.

304 is a general-purpose stainless steel material, which has good processing performance and corrosion resistance, and is widely used in food and medical industries. As long as the 304 thermos cup meets the safety and quality standards, it can be used with confidence.

Harmless. The 316 stainless steel thermos cup itself is safe and hygienic, mainly in daily use, it should be noted that some things are not suitable for soaking in the thermos cup. 304 stainless steel is suitable for food grade, and 316 is one level higher than 304.

316 is mainly used for medical equipment, of course, it can also be used on the first and second types of tableware, but the cost is slightly higher.

316 stainless steel thermos mug is harmless. 316 stainless steel is a kind of austenitic stainless steel, because of the addition of MO elements, its corrosion resistance, and high temperature strength has been greatly improved, high temperature resistance can reach 1200-1300 degrees, so the vacuum cup made of 316 stainless steel is harmless.

The most commonly used thermos cup is 304 stainless steel and 316 stainless steel. Stainless steel is the most common type of steel, with high temperature resistance of 800 degrees Celsius, excellent stainless corrosion resistance and good intergranular corrosion resistance. Good processability, high toughness, with weak magnetism.

Due to the addition of molybdenum elements, 316 stainless steel has better corrosion resistance and high temperature resistance, and the high temperature resistance can reach 1200-1300 degrees, which can be used under harsh conditions, and is non-magnetic.