Tupperware products are only used for household use, not for industrial/commercial use. It is important to emphasize that Tupperware products have different features and functions of home cooked food use and are not to be generalized.
Tupperware products sold in Indonesia are not currently used for cooking containers. Simply it is just to warm the food contained in it with the help of the microwave, but not for use in the oven or not to put it on the stove. It is not recommended to use a seal or base other than the Tupperware group, especially since the seal is tight enough to keep the air in and out of the base do not use it when reheating food in the microwave. Because when there is the very high air pressure in the base due to heating, it will damage the seal and the seal can be thrown up. It has a cap that must be removed when heating food to avoid extremely high air pressure in the base. It is not recommended to use Tupperware products for cooking/warming foods that have high sugar and fat content, such as butter, oil, caramel, fat, coconut milk, etc. If you want to warm up these types of food, you should use a Tupperware product and not more than 30 seconds.
Hot liquid foods (such as boiling water/butter/sugar/caramel/fat/oil) have a high boiling point that will melt any plastic product. Therefore, food in the form of hot/boiling liquids must be refrigerated before being put into Tupperware products and then covered.
After leaving the supermarket/market, foodstuffs must be stored in proper containers to keep them fresh for longer. For example, for the kitchen shelf, you can use products from the Kitchen organizer category, while for the refrigerator you can use products from the fridge and freezer category. For storage in the refrigerator, you should first remove the wrapper from the food material and then put it in a container from the fridge/freezer group, leave the container uncovered for 20-30 minutes. This will keep the food and container at the same temperature before closing the container.
Only Tupperware products from the Freezer group can be used in the freezer/freezer. Because this group uses special materials for use in the freezer, where the material is somewhat flexible so that it can adapt to freezing temperatures. While the fridge group and other groups are not recommended for use in the freezer because they use different materials / raw materials.
Only products that have a Classic Round Seal type lid can be filled with soupy/liquid food, apart from that, watery food will spill easily if stored in a non-Classic Round Seal product.
On the Tupperware container, you can find the Pictograms symbol, which means
Damage caused by errors in use does not get a lifetime warranty as previously described.
If the seal feels too tight, place it in hot water for about 3 minutes, dry it and attach it to the base while the seal is still warm. It is not recommended for classic round seals
On the other hand, for a loose seal, put it in hot water for about 3 minutes then remove it and put it in cold water as soon as possible.
After using the product, immediately soak it in warm soapy water and clean it with a soft sponge. Then wash and dry with a soft cloth so that the surface of the product is not scratched. If the product is sticky, it should be soaked first in warm water mixed with liquid soap (with a ratio of soap to water = 1: 4), then washed. The harder the dirt to clean, the longer it should be soaked.
Removing the aroma from previously stored food can be done by washing the base and drying it. Then fill the base with dry newspaper. Leave it for a few days covered. Then the newspaper is removed and the product is washed again and dried. Ready to use again.