How to choose stainless steel kitchenware
Stainless steel is a material widely used in kitchens. It is loved by many people because of its high temperature resistance, corrosion resistance, and beautiful appearance.But, you know what? Stainless steel also comes in different grades and qualities, which can be harmful to human health if used improperly.
Therefore, when we use stainless steel kitchenware, we should pay attention to the following points to protect the health of ourselves and our families.
- How to choose stainless steel kitchenware?
First of all, we need to learn how to judge whether it is food grade stainless steel.
Food-grade stainless steel refers to stainless steel that meets national standards and can be in direct contact with food. Its composition does not contain harmful heavy metals.
We might as well judge through the following methods:
- Is there a quality inspection report?
Regular stainless steel kitchenware manufacturers will provide quality inspection reports to prove that their products meet food-grade standards.
When we purchase, we can ask to see the quality inspection report, or check the quality inspection information online. If found not, then these stainless steel kitchen utensils are most likely irregular.
- Is there a steel seal?Food-grade stainless steel kitchenware usually has a steel stamp engraved on the surface to indicate its material and brand.
Common food-grade stainless steel grades include 304, 316, etc. We can judge its quality based on the steel stamp.
- Look at the implementation standards
Food-grade stainless steel kitchenware will have its implementation standards marked on the packaging or instructions.
We can check the specific requirements and specifications according to the standard number, and GB4806.9-2016 is my country's current food-grade stainless steel standard.
- Tap to hear the sound
Food-grade stainless steel kitchenware is generally relatively hard and dense, and will make a crisp sound when knocked.
Low-quality stainless steel kitchenware, because it contains impurities and air, will make a dull sound when knocked.
- Precautions when using stainless steel kitchenware
Secondly, we should pay attention to several key points in the correct use of stainless steel kitchenware.
Even food-grade stainless steel is not omnipotent. If used improperly, it will cause corrosion or release harmful substances. We must follow the following principles:
Wipe or dry after cleaning: Although stainless steel is not easy to rust, if it is exposed to a humid environment for a long time, it will also be corroded by chlorine ions in the water and form rust spots.
Therefore, after cleaning stainless steel kitchenware, we must wipe or dry it in time to avoid water stains remaining.
Avoid holding acidic and alkaline foods for a long time: stainless steel will accelerate its oxidation process under high temperature or acidic and alkaline conditions.
This releases some harmful metal ions, which can be absorbed by food and cause harm to the human body.
Therefore, when we use stainless steel kitchenware, we should try to avoid holding acidic and alkaline foods for a long time, especially when heating.
Rust can be removed with lemon juice or white vinegar: If stainless steel kitchenware accidentally rusts, we can use some natural acids, such as lemon juice or white vinegar, to remove the rust spots.
The specific method is to apply lemon juice or white vinegar to the rust spots, leave it for a period of time, then wipe it with a soft cloth or sponge, and finally rinse it with clean water.
Replace with new kitchen utensils: If there are obvious signs of corrosion on the surface of stainless steel kitchen utensils, and they cannot be removed.
It means that it has lost its original performance and functions and is not suitable for continued use and may cause harm to food and human body.
At this time, we should replace new kitchen utensils in time to avoid causing greater losses.
In short, stainless steel kitchenware is an excellent kitchen product, but you must also pay attention to correct selection and use to ensure its safety and hygiene.