Duralex Lys Food Storage Bowls

Yes, the tempered glass construction is specifically designed to handle thermal shock. They can withstand temperature fluctuations between -4°F and 266°F, allowing you to reheat leftovers straight from the freezer without needing to thaw them first.

The BPA-free plastic lids are designed to fit securely to keep food fresh, but they are not vacuum-sealed or leak-proof. They are best suited for standard refrigerator and pantry storage rather than transporting liquids.

Yes, both the glass bowls and the plastic lids are dishwasher safe. For the longest lifespan, we recommend placing the lids on the top rack to prevent any potential warping from high heat.

The bowls are designed to nest inside one another when empty, which saves significant cabinet space. When filled and lidded, they are stable enough to stack on top of each other in the refrigerator.

While the glass bowls are microwave safe, the plastic lids are not intended for microwave use. We recommend removing the lid or resting it loosely on top to allow steam to escape if you are reheating food.

Tempered glass is significantly stronger and more resistant to breakage than standard glass. If it does break, it tends to shatter into small, dull pieces rather than dangerous shards, making it a safer and more durable choice for daily kitchen use.