Oxy-Sorb 60-Pack Oxygen Absorber, 300cc

they are not as good when opened the tab that comes with them turns blue straight the way

These are the handiest gizmos. Helps your food storage last.

While Oxygen Absorbers would normally take around 15 minutes to activate, we had to wait a full24 hours for the same effect. Not sure these are brand new due to this, it seems like they couldhave been in storage for longer periods of time (hence why they did not activate right away).That being said the price makes up for it. If you are not in a hurry then this productis a good solution.

These work well at absorbing the oxygen inside well-sealed mylar bags of dry foods. Not just for long-term storage, I am using these for foods that we don't access too often, preferably those inside quality zip-top bags. If the bag is damaged, I replace it with a new mylar bag, otherwise I just keep using the products own packaging.I bagged the leftovers in a ziplock freezer bag and then put that inside the original wrapper and ironed it closed again. Works great at preserving them for future use. If left unsealed, they absorb all the oxygen they can (getting quite warm in the process) - I tried this with one to see how effective they are. These are good.

After reading some of these reviews I think people are misunderstanding the intent of these. They don't suck the air out of the bag or bucket they absorb the oxygen and leave nitrogen which doesn't spoil the food.Fast service and there was a pink sticker inside so you know they're good. If you're new to using these make sure you have a canning jar or something airtight to put the extras in right away or they will lose effectiveness. Your best bet is to have everything ready in assembly line fashion ready to pop them in and seal the mylar or bucket. These are different from silica gel packets. Don't use with sugar or it will harden and once the package is opened I believe they lose effectiveness so if using these with 5 gallon buckets get mylar bags too and put a pound or 2 in each bag depending on how long you want things to last. If you are doing this for emergency preparedness, I would definitely do that. I just buy flour in bulk. I don't bother with mylar for that. I put 12 cups in gallon ziplock bags with an oxygen absorber and toss them in 6 gallon buckets. It is especially helpful when you use different types of flour because 50 pounds doesn't fit in a bucket. This way you can fill canisters and have the extra tucked way nice and fresh for later use. If you use wheat germ or flaxseed flours with breads that ask for a couple tablespoons a loaf, put these in 1 lb bags and don't use oxygen absorbers with leavening agents or yeast. There are some really good articles on this subject if you are using them for dry canning I would take the time to read them or you could use them incorrectly and waste time & money.

Have used this brand for many years