The Magic Mill 24-piece set uses borosilicate glass, which is known for its ability to handle sudden temperature changes. This material allows the containers to move from the freezer to the oven (up to 400°C) with less risk of thermal shock than standard soda-lime glass. The non-reactive nature of glass also ensures that there is no risk of chemicals leaching into food, making it a reliable option for long-term meal prep.
The primary usability constraint lies with the Polypropylene lids. While the glass is very durable, the plastic latches and silicone gaskets are the most common points of wear. Repeated mechanical stress on the hinges, or washing the lids in high-heat dishwasher cycles, can lead to snapping or seal warping. Additionally, the silicone gaskets can absorb food odors like garlic or onion over time. A monthly soak in a vinegar solution is a practical way to maintain the hygiene of the seal.
If you prefer a lighter, more portable option for snacks that won't break if dropped, the Vtopmart 4-Pack of Bins is a better fit for children's lunches.
These glass units are featured prominently in our large airtight containers category.
