PrepWorks Silicone Lids

Yes, the silicone material is designed to stretch and conform to various shapes, including square, rectangular, and oval containers, as long as the container has a rim for the lid to grip.

While they are durable and heat-resistant, they are primarily designed for food storage. We recommend checking the specific temperature limits on your packaging, but they are generally safe for short-term microwave reheating and freezer storage.

They create an airtight seal that is excellent for keeping food fresh and preventing spills during standard handling. However, they are not intended to be completely watertight if a container is turned upside down or shaken vigorously.

For the best seal, ensure both the rim of your container and the underside of the lid are clean and dry before applying. Stretching the lid slightly as you place it over the container helps create the necessary tension for a secure fit.

Silicone can sometimes absorb strong odors over time. To minimize this, wash the lids promptly after use with warm, soapy water or run them through the dishwasher, which is usually effective at removing lingering scents.