Do you need to dip the lids in hot water before each use to get a good seal? Or just once when they're brand new?
1482767
Mine arrived in the dead of winter... so I did do the hot-water/refrigerator trick. Keep in mind these were so small that I only use them for the vitamins I plan to take each day.
1482768
I have never had to. I was a Tupperware dealer for 20 years. I really love mine. I have two sets.
977980
No. I have used the lids and have not experienced this as a problem. The pans are awesome, I love them!
1410152
I have reused these cups many times. I buy new filters (available here on Amazon) and rinse the cups and lids after each use. Here's the secret: after filling the cup again, cover the hole in the lid with a small piece of masking tape. That will prevent any leaks, and the needle pokes a hole in the tape. When you put the used cup in your Keurig, align the hole in the bottom of the cup with the bottom pin - don't punch another hole in the bottom. I have some that have been re-used many times!
635671
I only use mine when I'm canning. I put the jar rings in a small lidded basket for the dishwasher and wash the seals by hand. It's absolutely not a problem hand washing this little jewel.
711152
I had the same problem. Not sure why they haven't fixed the problem. I read that if you set another lid (flat part) over the one you want sealed, then seal them, it seals the bottom one. Then just remove the one on top. Not sure why it works but it does. Sometimes I have to do it several times though. Hope it helps! Have fun sealing. ;)
885655
I would wait, if I was you. Many of the jars that I received the tops were popped up causing the seals to be broken. They were still good, I just needed to use them right away. Hope this helps.
2154177
I haven't tried to use them in this manner but, to be honest, I think that would be asking for trouble. These lids are tight, but not bulletproof. You should probably try to find something where the lid screws on tightly, rather than pushes down to form a seal. My opinion only.
1012013
Dear "The Old Lady" Hopefully I can Help.I am old too. Have used cheaper brands and have not had thesefor very long. Remember always loosen lids or use damp paper towels on top And do not over heat.They should last for quite awhile. If bubbled or hard to clean, start a new one, for safety safe.
1190307
I recommend that you store them in the smallest mason jar that they will fit into with the mason lid closed tightly. Store in a dark, dry, cool place. Mason jars, and their lids, should be in 'like new' condition. No rust, corrosion, chips cracks or dents. Also, make sure they are clean and thoroughly dry before using.
1520979
They work really well at first. I've put these lids in the dishwasher though, and I think that warps them a bit and they become less leak-proof. So, if you buy them, make sure to wash the lids by hand.
389760
For initial first time use of the hot packs, soak them for two hours and then you can leave them in cool water without a problem. For infrequent use, place the moist hot pack in a sealed plastic bag and keep it in the refrigerator at all times. The hot pack should never dry out or it will be permanently ruined.
1713899
That was difficult for me too. I tried the "push button" method like with metal lids but that didn't work so well. After the jars had cooled off, (a couple of hours) I lightly pulled on the lid. there were a couple of lids that seemed sealed but when I was putting them away, the lid came off. I really didn't have any more failed seals than with the metal lids, just harder to tell.
697088
Today manufacturers say to put your lids in very hot, or boiling water (don't boil them) before you use them. It's the hot water that gets the rubber soft for a sure seal. I would do it simply because "things" can get into the boxes in transit, so I put them in hot water, but NEVER boil them. If your not having problems, then it may be fine to do it your way. Many of todays canners are new to this, and do lots of things skilled canners don't. I do put my lids in hot water, but never boil them, the manufacturers tell you not to, too. To each his/her own. I do love my lid rack too, it helps me a lot, and no more burnt hands either. Love it. Today manufacturers say to put your lids in very hot, or boiling water (don't boil them) before you use them. It's the hot water that gets the rubber soft for a sure seal. I would do it simply because "things" can get into the boxes in transit, so I put them in hot water, but NEVER boil them. If your not having problems, then it may be fine to do it your way. Many of todays canners are new to this, and do lots of things skilled canners don't. I do put my lids in hot water, but never boil them, the manufacturers tell you not to, too. To each his/her own. I do love my lid rack too,... » Read More Today manufacturers say to put your lids in very hot, or boiling water (don't boil them) before you use them. It's the hot water that gets the rubber soft for a sure seal. I would do it simply because "things" can get into the boxes in transit, so I put them in hot water, but NEVER boil them. If your not having problems, then it may be fine to do it your way. Many of todays canners are new to this, and do lots of things skilled canners don't. I do put my lids in hot water, but never boil them, the manufacturers tell you not to, too. To each his/her own. I do love my lid rack too, it helps me a lot, and no more burnt hands either. Love it. « Show Less
377111
They stay sealed until you open them. No leaks, just one time use & not reliable after that
765308
The lids push on and seal quite tightly. They're very handy to use just be sure you put them in the upper rack of the dishwasher
1521457
I simply place a used refilled K-cup in the same machine socket, seated on the same pin and compress the lever. A new lid will make a snapping noise when punctured. I use these lids over and over until the top becomes brittle and cracks. They're great! I've used them daily for several years with nary a problem. Best wishes, John Watts, League City, Texas
246806
I used them fine. Just make sure the lid is on securely or you'll make a big mess.