Do Not Keep a Seal or Even Seal In a Timely Manner
580184
Ive been canning for many years.  Last year I picked up these lids from a local store as it was a very good deal.  I should have known better.  I used a few lids along with another brand.  1/4 of the empire lids lost their seal in less than a year.  Nothing is worse than throwing hard work down the drain.  My other lids processed in the same batch are still sealed just fine.

Today I used empire lids to seal jelly and beets. I also used lids from another company.  The empire after two hrs of sitting have still not sealed.  The other lids have.

I would not risk any canned goods with these lids.  Now I have boxes of lids which I believe are worthless.  What a waste of money, time and more importantly food.
3002063
This unit is garbage. I had a previous model for 15 to 20 years that was superb. This one has insufficient power to totally evacuate air from a bag, and it also seals poorly. I called the company to complain and try to get some help. First, they said that it is now recommended that meat be frozen before vacuum sealing, even though I never had to do that with my old unit.  Then, all they were willing to do was replace it with the very same model. I let them do that, and the next unit was just as bad. When I tried to seal a fresh lamb roast, it wouldn't seal at all - not one bit. I then froze it for an hour so the juices wouldn't flow, and the unit took out perhaps 90% of the air, but no more, and I don't trust the seal at all. I called the company again and asked if I could return it and upgrade to a better model, while paying the difference, and the answer was "no."  Lousy unit, and the company really doesn't stand behind it well enough.  DO NOT BUY THIS MODEL.
4207025
We purchased these when we were moving to get our stuff to take up as little space as possible.  They did that job perfectly, but two bags had already lost their seal by the time we got to our new home.  We placed the bags in plastic totes, filled them with clothing, bedding, etc then vacuumed the air out of them, and closed up the totes.  Since they were being transported inside a protected environment, punctures or other rough conditions could not be blamed for the bags taking on air.  They simply did not maintain the seal.  If I move again, I will definitely invest in them again so that I can again maximize my hauling space, but will never use them simply for storage.  I wish I could say our experience is the only one I know of where the bags just lose their seal, but I've not met a person who has used them who didn't have the same experience.
1695150
I purchased a few of these at a well known store by my home.  I purchased a couple of the small rectangle containers with the blue lid, one tall round with the orange lid, and square container with the green lid.  I quickly noticed after a couple of uses that the lids do not fit tightly anymore, even though they did when I first bought them.  I can lift the lid right off the container without any resistance what-so-ever.  There is absolutely no seal on these. This is true for every single piece I purchased. I'd get a better seal using Saran Wrap on them vs. the lids they came with. I'm really disappointed that I spent the money I did for these.  For the same amount I could have purchased Pyrex, which I have owned for 10 years without any issues.
4382188
The seal does not stay closed AT ALL. I have to tape over it. The bags themselves seem ok though.
4128662
I will never buy American Standard products again, up to and including if I purchase a new house. This is way too expensive for what it is worth, and the functionally, please man. These engineers have the same design for this thing after how many years? The seal is absolutely terrible and continues to leak by. Please go back to your R&D department and design something that looks like it isn't from the 1950s.
40542
Fittings are loose and seal isn't good at all. Very poorly constructed and on top of that they were late getting to me.
1088866
I found these to be unreliable. About half the pickling cucumbers I tried were spoiled and this after I went to extra length to pump out the air after closing. In comparison, using the  the old way of sealing with 2-parts aluminum lids, works every time, no spoilage and costs much less. This spoilage persisted several times, with and without glass weights. Also when it came time to open it was harder even with the special easy tab. The Aluminum lids could easily be lifted with https://www.amazon.com/Harold-Company-Brix-Original-5-62-Inch/dp/B00634DSMY/ref=sr_1_fkmr1_2?ie=UTF8&qid=1511046608&sr=8-2-fkmr1&keywords=mason+seal+opener. IN short, I did not like this product. Luckily I could return them before the 30 days were over.
3855256
Cover does not seal good and tight. I bought it for our family trip in December and could not use it. In fact, I haven't used it yet. Very disappointing.
2760594
Sorry, but this does not hold a seal.  Pretty much useless as any vacuum disappears within twenty-four hours, rendering this just a nice looking, non-sealed container.  Wish that I could return it, but have kept it too long hoping that I could make it work.
1692488
These bags are decently sized and the set was priced well, but only one bag maintained the seal after a few minutes!  I tried rearranging the contents, adding fewer items, etc. and the bags would still return to their pre-vacuumed size within 5-10 minutes.  Not even worth returning, so I now have a set of large zip-lock style bags.
659230
Go to West Marine and buy a decent sealer, this  product is total garbage! It would be a good product if everybody were able to turn their boat upside down and coding, that is unfortunately not the case, it is a horrible product for coating the hull
3084495
Didn't work as promised. Yes- I read through hundreds of reviews and followed everyone's instructions. I tried twice. The first time, the ants got into the butter and I had to throw it out. Why doesn't the top come with a gasket for a better seal?  The second time (after 1 day), as I was lifting the lid, the butter fell into the water. NO- I didn't use any of the butter. YES-it was firmly packed into the top.
DONT BUY THIS!!  They're not worth the trouble. Get one of those Rubbermaid or Tupperwear butter dishes that seal tightly and leave the butter out for a day or two. That's fine. You can refrigerate over and over again.
3782660
This item says right on the box, "INCREASED REPETITIVE SEALING". That is not true with this unit. I got my venison back today. I started packaging up the sausage and after 6 sticks, I had a red flashing light that meant I had to wait 20 minutes to let it cool down. I have an old 550 model that can be used faster than this model that advertises "INCREASED REPETITIVE SEALING". I am taking it back tomorrow. My brother and I have been using FOODSAVER systems for over 8 years. This is not an improvement from the old model I was using.
1466703
Not advisable as a pantry purchase -- not sealed so too easily pops open and "cleanses" you other pantry items
235483
I wanted to like these. Really, I did. I just can't. They're too small to hold a serious amount of liquid (I mean, who's gonna hold off drinking just 16 ounces for the 7 hours that will elapse while the temperature remains the same?), and the bottom came off one of them as soon as I opened the package. The lids that are produced for these leak... Yes, the lids say they don't seal the cup, but I'm talking about gushing water with the slightest jostle. And in a car's cupholder? Don't even bother; you'll be wearing more of it than stays inside.

Save your money; this is one of those items about which the phrase 'buyer's remorse' was invented.

Oh, BTW: Yes, I contacted Klean Kanteen about the bottom coming off. Yes, the company promised to deal with it within 5 to 7 business days AFTER receiving my photographs of the problem. No, the company did not reply to my warranty submission. No, the company did not send me the promised new cup after 10 business days. When I contacted them again, their sole CS rep contacted their sole Warranty rep and said they'd get it out to me right away. And while they were at it, they sniffed officiously that they are now promising warranty responses within 20 business days, because they've had people leave. So if their own employees don't choose to stick with them, I'm not hearing any good reason why I should either!
2260971
I have been buying Earthborn for years, and recently it seems that the quality of the bags (specifically the seal) has been going downhill.  The seal now stops working after a few weeks, and I've just starting putting the food into bins.  The last two bags I have received have opened (due to the seal failing) in the box, so half the food spilled out into the box during shipping.  Very annoying to clean up and hurts the quality of the food.  Buy this food locally if you can, to avoid receiving a mess in a box.