So everyone should pay attention to buy some good quality tin foil when shopping. When using tin foil for heating, pay attention to the following precautions. Because if used improperly, it may produce harmful substances.
These substances are very harmful to the human body.
First, because tin foil contains a lot of lead and aluminum, it can't be used to package food for a long time.
Second, the tin foil is unstable, so it can't be in direct contact with open flames, which easily leads to lead dissolution.
Selection of tin foil
1, look at the surface of the tin foil
The surface of high-quality tin foil is white, smooth as a mirror, without machine scratches or wrinkles, graying or blackening, indicating that the tin foil has been oxidized. The surface of tin oxide foil will produce toxic substances, which will be absorbed by human body through food. It is easy to cause human poisoning, so when choosing tin foil, please pay attention to whether the above problems exist on the surface of tin foil. If you have the above problems, please do not buy.
Step 2 Touch the surface of the tin foil
High-quality tin foil has good handle, good toughness, uniform heating, easy to tear but not easy to break. On the contrary, if the touch of tinfoil is particularly thin and fragile, it can be judged as inferior tinfoil and should not be purchased.
3. Look at the outer packaging of tin foil
This mainly depends on whether the overall printing of tin foil packaging is clear, damaged or torn, and whether the high-quality tin foil packaging is beautifully printed and brightly colored.
Step 4 look at the details of the tin foil
High quality tin foil should be serrated, which is more convenient to use.
When buying tin foil, please go to a regular shopping mall or online to avoid the impact of unqualified tin foil on your health and that of your family. In addition, please don't choose too large tin foil paper, because tin foil paper is not suitable for long-term storage.