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Question: Are they leak proof
Document: These are really high-quality containers, perfect size for taking a lunch like a sandwich, salad, or raw veggies/fruit. Something &#34;dry&#34;, in other words.I bought these without really researching as much as I should have, and only realized after buying them that they were certainly NOT leak-proof. Well...they aren't advertised that way, either.
These are glass, and if you're using dry goods in them, nothing will ever leech from the plastic lids either.If you don't need leak-proof, buy these; otherwise, you can upgrade to the Pyrex No Leak containers, which are the exact same glass part but with silicone/glass lids that ARE leak-proof. They're more expensive but not that much, and they have the advantage of being complete leak-proof and plastic-free.
I put the lids and containers in the dishwasher and take them out when they are still warm & put them together. It makes a nice fit. I'm sure you could get the same result using a microwave. I think this is what makes them leak-proof. I'd rather have the lids too snug than too loose. I've done all my containers this way and all the lids fit without a problem- easy on, easy off.If you still have a problem with the lids, contact Pyrex.
I've had a set of these bowls for years now. I love them. I don't expect them to be water-proof (because they definitely are not) and we don't use the lids in the microwave. Also, about the lids - they don't seem to hold on to odor like other plastics - which I'm very sensitive to.
The whole point of buying a Pyrex jar with a lid is because you want to store something and not let the air get to it. These products are not fit for purpose in this regard. Even if you treat the lids carefully and wash them by hand and do not subject them to heat they soon become useless as an air proof lid. We bought some silicone lids and these work well but it is annoying that we bought a unified product from Pyrex that does not do the job it was sold for.
No BPAs and no odors. When it's clean it's really clean. The lids are snug which means the bowls do not leak.
Can't complain much  - Pyrex makes good stuff!However with this particular dish, the lid is not tight enough and the content will leak a bit if not kept exactly upright.
Leaks easily - can't bring a wet lunch to work in this, for example. Nevermind soup - that would leak for sure. Also, the lids will crack eventually - and I'm talking within a year.Best to go with glasslock. Just sayin'
I've used the 2 cup, 4 cup and 7 cup sizes of these and love them. They're sturdy and seal well/don't leak. I prefer see-through glass containers so I can see what's inside, and end up with science experiments growing in the fridge.
I've had a set of these for years and they work well. The lids are the weak link though. They are durable but they leak liquids. I only use these containers for food storage and lunches-when I have to take leftovers to work which are relatively dry. For wet leftovers I prefer Glasslock containers, which are durable and don't leak.
Answer: If you're talking about the seal of the lid, that's a good question.  I hadn't tested that.  Now I have.The answer is NO.  The seal of the lid to the bowl is not water-tight.