Excellent product! I've been using it for a few months now and have never had an issue with it keeping a seal.This container is made from a type of durable glass, and I can confirm their toughness. Although not this particular item, Zwilling makes a container one size smaller (fridge box) of the same material. Well, I dropped one onto my tile floor one day, and despite the incredible noise, it didn't break. It didn't even chip or leave any kind of mark on the container! I continue to use it.And, they do keep food fresh much longer than an ordinary container. Some foods, I think, keep fresh even longer than advertised.Oh, there is one downside. Even after releasing the airtight seal, the lid can be really difficult to remove! A great way to store your kids favorite treats!

I love this system and the glass containers. It makes life a lot easier in the kitchen. The glass containers keep brown sugar moist and usable and that is golden!

I don’t know that my kitchen could survive without my vacuum sealer! I use the glass containers and the bags with the device!It is a life saver for anyone who is trying to save on trash in the landfills and also for anyone who is trying to buy in bulk to save at the grocery stores!

No se pudo cargar el contenido.

Son muy buenos para preservar la comida mucho más tiempo

BUEN PRODUCTO, HASTA AHORA TODO BIEN

We aren’t often on the cutting edge of new kitchen techniques, and I suppose vacuum packing has been around far too long for me to claim front-of-the-line status for that, but for us these Zwilling glass vacuum containers and their nifty little pump for extracting air qualify as a breakthrough!There’s clear evidence that the vacuum packing does preserve foods longer, and since we’ve been in the process of weeding out all plastic leftover containers -regardless of supposed absence of BPAs and their many relatives - in favor of glass, that provided another nudge to try these.The cylindrical rechargeable pump (I’ll likely review it separately) is easy to handle and use and makes these containers just the thing. The pump lasts a long time on a charge via an included charging cord, and it’s scarcely moments before the air is sucked out and away.I believe (but am not certain) that the lovely sea-blue trim color oddly called “La Mer” on these German-made glass containers is a newer one? The others I’ve seen online have gray trim. Beyond color, the La Mer incarnation has one-piece lids where I think the gray lids are in two layers. A modest convenience, too.I’m sure I’m not the first to lament the high price of these containers, but shifting from toxic and impermanent plastic to glass that should last us for good, helps to cushion the pain upfront. And the availability of the vacuumfeature in conjunction with them is a real perk.Since at least so far as I saw (and without an exhaustive investigation), the sizes for the La Mer offerings are limited and mostly rather large, so I hope to try some smaller sized gray lidded ones, too, which I believe use the same vacuum pump. And that may also be a bit less pricey.It’s helpful that the Zwilling glass containers are marked on the site with their dimensions in inches. That’s a lot more than I can say for the Pyrex “Simple Store” non-vacuum glass containers with lids. I searched every nook and crevice of the Amazon listing for them and utterly failed to find any descriptor that wasn’t in volume measurement: e.g. the number of cups capacity. I confess I’m not much of a cook, but to me the phrase “6 cups” is meaningless as a way of understanding size in 3-dimensions.At least Zwilling isn’t so pompous about it and gives three dimensions as H x W x L. I’m sure I’m just being picky to want them to call length by that term, rather than by “Height” when it is no such thing. But if I think again about cupsful, I quickly embrace inches by any name.If you can accept the price tag for these, I think having good safe glass instead of plastic of any stripe is worth a good bit. And while I wouldn’t ever plan to use these as our only glass refrigerator containers because of that cost, I do think the vacuum feature made so easily usable is a real plus. Many vacuum packing devices are paired with plastic containers; even worse, often with plastic bags and other collapsible shapes.Even if I didn’t loathe plastic in contact with any food, I would be delighted to avoid cleaning plastic bags (yuck!) in favor of washing solid structured containers.

Excelente, incluso embona con mis recipientes que son una versión anterior (con silicona roja)