do these have a good seal on them when closed?
877492
The seal is quite tight; in fact, it is so tight that it requires a bit of effort to remove the cap.
877493
No not really. You have pull them off & often the ingre. Fall out. A twist top would be better.
877494
It's a screw-on lid, and there is no silicone gasket to keep it sealed. However, it is a very tightly fitting lid. I haven't had any problem with herbs in them but I'd avoid finely ground spices that might get in the grooves of the lid and make it difficult to close.
212199
They are sealed although I've found you can use them (with decent success) longer than suggested
141595
I believe they are. I've cleaned them before using desinfectant spray and water and it's still holding up. The seals seem air tight but you may want to ask the manufacturer (Bright Medic) directly to be sure.
555190
These have a vacuum seal in the inside, so it doesn't loose the vacuum while you are closing it...
889237
Yes, they are airtight. I use them though for flavored water, not juicing. They do seal very well.
1570033
I honestly haven't tested them, I load them up and stack them and put them in the freezer. I have never had anything leak out, the lid is tight, it won't pop off. I haven't put them on their sides or upside down however to test the seal. Hope this helps!
1633890
I don't remember if there is a seal, but I've never had a leak in the many times I've ordered from Amazon.
1870099
The box says yes, but they have not been wet other than light rain. It has seals around all openings and I am pleased with them.
785725
They can be resealed as needed, the seal holds well, the slide mechanism tends to come off the ends. I expected better quality from Ziploc products. I have things stored for over a year now no leaks!
57593
Yes, but none of mine really "sealed"....not enough that I felt secure enough to add in coffee, sugar, etc..I ended up replacing them & really noticed the difference in proper seals, so I recycled them into my guest bathroom to hold q-tips, cotton balls, disposable razors.
1857709
don't know. I used mine right away but they appeared to be wrapped up tightly and everything sealed.
604062
Mine are doing well after about a dozen uses. My only issue is getting gunk out of where it seals.
1579445
They certainly seem to be completely sealed. Either using the snap on, one time use lid or the more expensive gamma lid.I prefer the gamma so that access is available to the product stored with out the hassle of replacing the snap on lid.
1154522
I'm not sure, as I've never tried it. They do seal well without much effort on your part though.
1962109
yes they do. I have not tried to seal the jars for long term, but they work fine for me.
1286445
If you get a good seal, then they have good isolation. Comes with three different sized tips, so you should be able to get a good fit. I'd say they have really good isolation.
256979
No, unfortunitely it does not seal them. You need to keep them in the fridge or freezer. However, I love the product! :)Hope that helps!