Simply Sauer Fermentation Airlock Bundle Kit - Fits Wide Mouth Mason Jars - Supplies Include Airlocks, Pump

These are great. The lids screw on hand tight, the air is pumped out and a negative pressure is maintained by the seal in the lid until CO2 replaces the partial vacuum.Brilliant.Buy once with the pump and any other purchases can be just the lids which are around a fiver cheaper.

Using these in combination with Ball Jars has been the best solution for home fermenting I have found. Super simple and clean and effective.

A truly superb product. I cannot recommend these enough. All four have been in constant use and have performed excellently.

Was very excited to get this to make sure my ferments don't have air anymore in them. Tried them on my new batch and it seems at least one of them lost pressure within a few minutes and others lost it overnight. Not sure they work very well and the silicone valves in them also seem to move a little too much making it unreliable.Edit: The seller was more than responsive to my issues with the kit I was sent. A replacement was promptly shipped and it seems to be better than the last batch (at least for the two days I have used it) in holding off the vacuum and not losing pressure. Would certainly recommend this not only because it works but also the sellers service and prompt response to my issues.

This is an updated review. The company kindly sent me a replacement pump after the rubber seal split. To London England, from Canada. Really great customer service, and while the pump is in good condition it is a very useful product for keeping the mould out of ferments. All the best.

They brilliant and they work, very happy with them, bought more.

I purchased these as the as it states they are made from Glass...These are Not Glass! just plastic, and the box tells a different content, it has 4 lids and a pump, the box says 2 lids, 2 stones and a pump? Haven't used them so no stars, although I had to give 1 to get past this page.

So easy to use and peace of mind while my goodies are fermenting. Wasn’t sure if they would be worth the outlay but they certainly are as I’m in an old house and had spoilage using the burp method, no more spoilage using these🥳

I have many fermenting vessels and tools but this one is fool-proof, use these along with the Simply Sauer glass weights and you can't go wrong. I pull a slight vacuum at the beginning to remove oxygen, then when the ferment activity is done I use the vacuum again to keep out the nasties. It's perfect for removing some cabbage etc. for a taste and then pulling a vacuum which will remove the oxygen since there is no longer Co2 production to push the oxygen out again. Will definitely buy some more of these and the glass weights.I also like the ability to see through the top, which gives these a great advantage over similar vacuum tops.

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Come prodotto è davvero ottimo e mantiene la pressione, se maneggiati con cura durano a lungo.

I've had a set for a few years and used them in making Kefir. They work very well and the tops are still perfect. Now this new set will be to ferment vegetables. So, having purchased these for the 2nd time speaks for itself. They are simple, durable, effective and a great value.

These fermentation lids are literally awesome!!! Screw onto wide mouth lids with ease and are made of quality plastic, they are extremely durable and well made. Was unsurr about the pump but after watching my saurkraut, i see how incredibly useful the pump is to remove the excess gas by removing it. I can forsee they shall last a long time thru many many batches of fermentations. I Def recommend these to anyone looking for a quality product that surpassed my expectations. Thank you for an excellent product. Will most def purchase more. Haven't found any that I can just purchase without the pump....Def don't need an excess of pumps with every 4 lids bought. Just a thought!!!