Fermenting Jars

5 litre Fido Fermenting Jar With Fermenting Lid BPA Free

Preserve your food the natural way with this 5 litre Italian made Fermenting Jar.  Fermenting food is the oldest form of preserving with the technique being in use for over 4000 years! Yes you can make Pickles, Kimchi and Sauerkraut, and that is just the start.

Ferment all your veggies and fruits into delicious foods which are much better for your health!  

Fido reusable Glass Jars are of the highest quality and contain NO BPA! (Bisphenol A).

 Glass lids preclude issues with rusting. All jars have wide openings for tidy, easy filling.

The Fido fermenting valve effectively provides an airlock, allowing gases to vent naturally from your jar without your intervention, which can introduce harmful yeasts or excessive oxygen to the fermenting product. 

Note that the main photo shows the economy airlock.  At times these may be unavailable and we upgrade the order to a s-shaped airlock.  This serves the identical purpose to prevent air from getting into the ferment.

Please note that some burring of the glass  can occur but this does not affect the seal or the food inside.

Please take care when inserting or removing the airlock to do so gently and hold the black grommet in position whilst doing so.

You will receive the jar with plastic airlock, a rubber seal, and the 5 litre jar.


Jars can also be fitted with taps which are useful for fermenting liquids: taps are either plastic or high quality stainless steel.

Please note that the lid section only of the jar is not available for individual purchase.  For storage purposes you can either remove the airlock and plug the hole or place the contents into a standard storage jar.

Due to the shape of this jar, it is difficult to use a dunking weight with this product because only the small weck dunking weight will fit through the lid and this leaves space around the sides. Some people use cabbage leaves to weigh down their fermented products or even flexible food grade products such as silicone sheets.  These can be held in place with the small dunking weight.

Directions for use

Check that the seal is seated on the lip on the underside of  the lid.  Insert the airlock into the rubber hole on the lid, being careful not to push too hard.

Fill the jar with the food you are fermenting and leave about 2 - 3cm headspace.  Pour on whatever liquid you are using as a fermenting liquid, be it a salt brine, whey or lactic cultures.  Ensure that the liquid covers the food but still leaves head space at the top.  For some food you may wish to weigh down the food with a fermenting weight (sold separately) so that it stays submerged beneath the liquid.  

Clip down the lid with the wire bail.

Remove the top off the airlock and add water to about half way up the airlock.  Replace the top on the airlock.

The fermenting process starts immediately.

Once the product is fermented, you can store it in the fridge with the air lock in situ, or remove the airlock and transfer the contents to another jar with an airtight lid.  Unfortunately separate storage lids are not available.