Fermentation Lids for Wide Mouth Mason Jar - 4 x Fermenting Lids (Jars Not Included), Extractor Pump and Ferment Recipe Book Make Sauerkraut, Kimchi, Pickles Or Any Fermented Food.

These are nice lids for sure. They fit the Mason jars that I recently purchased at a local big-box store, and are certainly doing what they are supposed to! I currently have two jars of sauerkraut, dill pickles, and Anaheim peppers all fermenting without worrying about burping the jars everyday. Using some glass canning marbles, think glass hockey pucks, with these are certainly keeping anything from the surface and therefore no bad growth inside of the jars.The *only* issue that I have with them is that the date ring is *Very* easy to fall off of the lid. While this is not a concern while in use, after using these and then storing them... the concern is that the rings will either be broken or lost. As it is today, these will likely be stored in a large ziplock or other container to keep everything together.

I absolutely love these, they fit on all of my jars and I am currently using them all. I got them for kimchi, to make in memory of my time in Korea, but once I saw how easy they were to use I went a little crazy fermentation style. I highly recommend these for anyone that wants to make any type of fermented product easily at home.

After reading the description, they seemed to be a quality product. The lids arrived with no visible cracks or defects. I purchased them to make pickles from my garden cucumbers. This is my first time making pickles; so far, the lids seem to be working. Following the recipe, I will taste the pickles in a few weeks.

easy to use. provides a positive seal. allows gasses to escape - no need to "burp". well made

Super easy to use with simple mason jars. Need to buy more.

Fast shipping, compact packaging. everything I need to make great at home products.

High quality, fermentation lids. easy to open, simple to use. Homemade sauerkraut is a money saver with gut health benefits.

Really easy to use and lets gasses out so oxygen doesn’t come in.