Set superblock 3q(11+17+20) auto. valve

Set of 3 square glass food containers with automatic valve for refrigerator and freezer food storage. Premium quality extra clearclear glass, clear plastic lid with closing flaps on all four sides and blue gasket. 100% made in Italy.
Easy to use, highly hygienic, fully see-through and recyclable. Ideal for takeaway thanks to the leakproof lid.
This set includes: 1 Superblock Q20 with 260cl_91 1/2oz capacity, 1 Superblock Q17 with 140cl_49 5/16oz capacity and 1 SuperblockQ11 with 38cl_13 3/8 capacity.
General warnings:
Use the container with caution as the glass breakage may cause injury.
Wash the food storage container before first use.
Fill the container up to half inch below the rim and place the lid on.
Following the heating, always handle the container with oven mitts.
Place the container on a flat surface. To avoid burns keep the container away from your face and use suitable hand protectors. Handle the lid carefully to slowly release the hot steam and place the lid on a flat surface.
Place your frozen or heated container on a dish towel. Beware of the direct contact with cold and/or wet surfaces that may cause breakages.
Always remove the lid only after a few minutes from taking it out of the freezer
The valve opens automatically when used in the microwave and does not interfere with the food preservation.
Do not use abrasive brushes and sponges to better keep the glass and the lid longer.
The takeout and hand washing of the perimeter gasket is recommended.
To avoid glass damage the use of wooden tools or not sharp-edged utensils is recommended.
Set the microwave on defrosting/heating programs only with a power suitable for the allowed limit temperature.
Neither use the container in the oven, nor on the open flame or on the electric stove directly.