I received these Coverflex Silicone lids as a gift from a friend who had been using them for years. I think she noticed how much I coveted these clear silicone stretch lids, which grab and seal anything in a mug, bowl, or on a plate. The pack she gave me has 4 lids of graduated sizes: 9, 11, 16, 21 cm diameters.
Finally, a truly airtight seal with a lid that is NONSLIP and infinitely reusable. I use my [lidless] stainless steel work bowls for food prep daily, and had to put a plate loosely over the top to store in the fridge–not so great if you’re not into desiccated noodles or your entire fridge smelling like salsa. I refuse to use plastic food film. Ick.
That 9 cm CoverFlex lid prevents your roommate/spouse/children from spilling that half-cup of coffee in your coffee mug, the one you placed so carefully atop that yogurt tub the day before.
These 100% food [grade] silicon lids can be frozen, refrigerated, microwaved and the label further claims that these lids do not deteriorate over time. For longest shelf-life I plan to wash these by hand, though I suppose you could wash them in the top rack of your dishwasher. I am phasing out use of plastics in our food prep, storage and consumption here at home. Goodbye plastic snap-on lids and bowls, goodbye polybisphenols! The Europeans regard silicon as safer, and I’m inclined to agree.