HEFTMAN Fermenting Jar With 1 Way Air Release Vent - 1.4 Litres, 2 Pack - Ideal for Safe Fermentation for Kefir, Kimchi, Sauerkraut, Sourdough Starter, Overnight Oats - Fermentation Jars Pack of 2

I read the reviews about these breaking but went ahead and I'm really glad I did. I sterilize with Milton and had a batch of red cabbage with garlic and caraway seeds going for 3 weeks. It's gorgeous, really tangy and very tasty. My first lot with white cabbage was ok, but not as good as red cabbage. According to taste obviously.. The jars leaked quite a bit when fermenting started but that is good news. I put mine in a tray so no probs. I put weights in and topped up to keep it going. Really easy to do and no worries about burping the jars. Very happy with the results and my gut is too. Great jars.

These jars are first class! They do their job very well indeed! As long as you read the instructions before use, I can't see there being any problems!

Use these for making Kefir. Will not take hot water without cracking. I even tried heating water gradually in the microwave, to try to sterilise the inside and that cracked the glass onto my third one. Wish the manufacturer would make them from heat-resistant glass.

Absolutely brilliant jars - I use these for my sourdough bread starters. After a "feeding", 4-5 hours later you see the starter bubbling away and can hear the gentle hissing and popping of the gases being released by the vent valve. They are a good diameter and short-ish height to fit well in the fridge too. Love them. The chalk pen and black labels are excellent too.

I am new to fermentation so wanted an easy jar to start. These jars are just that and they are the best priced comparable jars. Using a cold sterilization (diluted Milton 15ml in 4L) and 4 rinses followed by air dry and time in an oven at 130C I got going with a Kimchi, Sauerkraut then these pickled cucumbers. The jars are heavy and worth making sure the lids are fully on and your hands are dry when handling to avoid dropping. When sterilising DO NOT use boiling water in these. Even when using a metal spoon etc to equalize the temperature between water and glass, the glass is so thick that cracking will occur. Another reviewer noted this - and I also made this mistake. If you want to boil or heat to sterilise DO raise the temp gradually from cold. The plastic and silicone lids are great allowing for gasses and liquids to overflow if needed when fermentation starts - without causing explosions! And lids and glass being neutral material there is no risk of corrosion or metal contamination. These are all food safe , BPA free and lead free. Jovela were a great and responsive supplier.

No strength in the glass jar. First use for sourdough starter mix, jar cracked! Lid great, glassware zero. I had two from Lakeland plastic a couple of years or so ago which I was pleased with until I dropped one by picking up bye the lid when loose. Height wouldn’t have been 100mm, it broke into pieces! You live but don’t always learn!!! I can only presume Lakeland stop stocking because of breakages.

I bought this fermenting jar to make my own sauerkraut and kimchi at home. I was impressed by the quality and design of the jar. It is made of strong glass and has a wide mouth for easy filling and cleaning. The lid has a silicone seal that creates an airtight environment for the fermentation process. The best feature of this jar is the one-way valve that automatically releases the excess gas that builds up during fermentation. This prevents the jar from exploding or leaking, and also keeps out oxygen and contaminants that can spoil the food. The valve is very easy to use and does not require any maintenance. I have been using this jar for a few weeks now and I am very happy with the results. My sauerkraut and kimchi are delicious and crunchy, and have a nice tangy flavour. They are also full of probiotics that are good for my gut health. I would recommend this jar to anyone who wants to try fermenting their own food at home. It is a great product that is worth the price.

What more can I say. They are a great idea and well designed with the wide top and the lid etc. They even look nice. But I've now had two of these just break while fermenting kraut and kimchi. they both cracked at the base, under very normal use. Have I been very unlucky? I broke another one because it slipped out of my hand. We will see how long number 4 lasts...I think it makes sense to look for stronger jars.