304 stainless steel is food grade?

 Non-food grade stainless steel: heavy metal precipitation harm, "non-food contact with" stainless steel products if used as cookware and tableware, in high temperature, acid, alkaline environment, heavy metals easy to precipitation.Heavy metals generally refer to metals with densities grea

Non-food grade stainless steel: heavy metal precipitation harm, "non-food contact with" stainless steel products if used as cookware and tableware, in high temperature, acid, alkaline environment, heavy metals easy to precipitation.

Heavy metals generally refer to metals with densities greater than 4.5 grams per cubic centimeter. Some heavy metals interfere with normal physiological function of human body, harm human health, known as toxic heavy metals. This kind of metal elements mainly include: lead (Pb), cadmium (Cd), chromium (Cr), mercury (Hg), etc.

Food grade stainless steel strictly limits the amount of lead, chromium, nickel, tin, arsenic and other migration, its lead chromium content is much lower than the general stainless steel.

That is to say, stainless steel tableware is allowed to add some heavy metals in the production process, but the amount of these metals into the food, can not exceed the provisions of the above standard.

304 stainless steel must be food grade stainless steel? So the problem comes, we in the kitchen appliances and tableware introduction, often hear the business propaganda that they use 304 stainless steel. So, 304 stainless steel is food grade stainless steel?

Food grade stainless steel, commonly used 430, 443, 304, 316, etc., and 201, 202, etc., are not recommended for contact with food industry, because of low rust resistance and high manganese content.

304 stainless steel containing chromium 18%, containing nickel 8%, such stainless steel corrosion resistance is better, the industry also known as 18/8 stainless steel. Generally speaking, the common 304 steel on the market is less metal migration, so 304 steel stainless steel products can be preferred.

The increase of manganese content in stainless steel, corrosion resistance, no rust function will be reduced. If you make acidic food such as fruit juice, heavy metals, especially manganese, are easily precipitated in the cooking process.

The most common food grade stainless steel is 304 stainless steel, but 304 stainless steel is not equal to food grade stainless steel, but also in line with the national standard GB4806.9-2016.