Os utensílios de cozinha em aço inoxidável são seguros?

Many people are concerned about whether it is safe to use stainless steel cookware, especially the possible release of chemicals when in contact with food. As a professional fabricante de utensílios de cozinha em aço inoxidável, I will analyze the safety of stainless steel cookware for you so that you can make a wise choice.

Are Stainless Steel Pans Safe ？

Stainless steel cookware is popular for its durability and safety. It contains iron, chromium and nickel, which are corrosion-resistant and heat-resistant. It will not react with food or release harmful substances when cooking, which is very safe.

It is also safe because it has a passivated chromium oxide film on its surface, which can prevent rust and corrosion, maintain high temperature stability, and prevent harmful substances from penetrating into food.

However, if the cookware is worn or scratched, trace amounts of chromium and nickel may seep into the food. This does not affect most people, but people with nickel allergies may be uncomfortable. Nickel-free stainless steel cookware can be selected.

In general, good stainless steel cookware is safe under normal use, but it is also important to keep it intact.

What Grade Of Stainless Steel is Best for Cookware

Look at the grade of stainless steel when buying cookware. Common cookware materials are 304 (18/8 or 18/10) and 316 stainless steel.

18/8 and 18/10 indicate the chromium and nickel content: 18% chromium and 8% or 10% nickel, respectively. Cookware with a high nickel content is more corrosion-resistant. 18/8 is suitable for most cooking, while 18/10 stainless steel is highly corrosion-resistant and is often used in high-quality cookware.

Medical-grade 316 stainless steel contains molybdenum, which is more corrosion-resistant and suitable for cooking acidic and heavy foods, but it is expensive and less common in home cookware.

In addition to the grade, the structure of the cookware is also important. “Composite layer” refers to the multi-layer structure of the cookware, which usually includes a core of magnetic material such as aluminum or copper, and an outer layer of stainless steel. This structure makes the cookware surface non-reactive and evenly conducts heat.

For example, three-layer stainless steel cookware is made of two layers of stainless steel and a layer of thermally conductive metal, which is lightweight and has high thermal conductivity. Some brands even have five or seven layers, which are more durable and better at keeping heat.

Caraterística	304 Stainless Steel	Aço inoxidável 316
Composition	18% Chromium, 8-10% Nickel	18% Chromium, 10% Nickel, 2-3% Molybdenum
Resistência à corrosão	Good, but less resistant to chlorides	Excellent, highly resistant to chlorides and harsh environments
Durabilidade	Very durable, resistant to rust and staining	Extremely durable, ideal for high-stress environments
Resistência ao calor	Good, handles high temperatures well	Excellent, performs better in extreme heat
Preço	Generally more affordable	More expensive due to additional molybdenum
Ideal Use	Everyday cookware, general kitchen use	High-end cookware, marine or chemical environments, medical applications
Maintenance	Easy to clean and maintain	Requires less maintenance due to superior corrosion resistance