The fda says they re ok but if you need to cover your food it s probably safest to use wax paper parchment paper a white paper towel or.
Plastic tupperware microwave safe symbol.
This stamp of approval which includes three wavy lines to symbolize.
First is top rack dish washer.
This however is not an area of concern with tupperware.
This symbol indicates that the product is designed to be used in the microwave.
When using the microwave it is best to remove the container lid and then heat according to the power indicated see temperature symbol.
Tupperware containers are generally safe for use in the microwave.
To be sure the product you have is deemed safe for the microwave look on the bottom of the container.
Here is a little tip for you.
The easiest way to figure out if a plastic container is safe for the microwave is to look for the microwave safe symbol.
If on the bottom you see a symbol containing 4 or 5 wavy lines then it is certified safe to use in the microwave.
Second is ok for freezer.
After being microwaved the plastic feels cool.
Most containers have the tupperware symbol of three arrows forming a triangle with a number in the middle.
If you re curious about the other numbers which range from 1 to 7 tupperware has a handy chart.
All plastics are derived from petroleum however.
At the end of the day not every plastic container will have the symbols you re looking for and there s still considerable debate as to whether plastic is food safe in general.
And those microwave safe plastic dome covers.
As a precaution however you should always check the container to see if it contains the microwave friendly sign.
So regardless of the type of plastic high temperatures will cause chemicals to leach into.
Last one is food grade plastic i believe.
Tupperware products are plastics and not all tupperware products are not microwave safe.
Microwave safe bryana stearns.
The symbols on your food containers are actually really important microwave safe logos microwave ovens dishwasher laundry symbol tableware container png plastic container symbols for food grade plastics this is plastics safe to use in the microwave food atom symbol on plastic container.
Other crap is pp5 which means it can be recycled 5 times if i m not mistaken.
So you can safely reheat or defrost food in it in a microwave oven.
If your tupperware has a symbol with wavy lines or a microwave with wavy lines you can use it in the microwave without fear.