If your tupperware has a symbol with wavy lines or a microwave with wavy lines you can use it in the microwave without fear.
Plastic tupperware microwave safe symbol.
Second is ok for freezer.
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.
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.
First is top rack dish washer.
Tupperware containers are generally safe for use in the microwave.
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.
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.
And those microwave safe plastic dome covers.
The easiest way to figure out if a plastic container is safe for the microwave is to look for the microwave safe symbol.
All plastics are derived from petroleum however.
The symbol is usually on the bottom of the container and contains 4 or 5 wavy lines.
Tupperware products are plastics and not all tupperware products are not microwave safe.
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.
If you re curious about the other numbers which range from 1 to 7 tupperware has a handy chart.
Last one is food grade plastic i believe.
Third is supposed to be heat.
To be sure the product you have is deemed safe for the microwave look on the bottom of the container.
Most containers have the tupperware symbol of three arrows forming a triangle with a number in the middle.
Microwave safe bryana stearns.
As a precaution however you should always check the container to see if it contains the microwave friendly sign.
This however is not an area of concern with tupperware.
So regardless of the type of plastic high temperatures will cause chemicals to leach into.
After being microwaved the plastic feels cool.
Type 5 polypropylene is most often labeled microwave safe this plastic is sturdy and heat resilient and it stays clear even when exposed to tomato sauce.