• ​For demijohns, containers and jars intended for fermentation - this stopper fits perfectly the opening of a fermentation container screw cap or cover.
• For airlock - this stopper enables installing a plastic or glass airlock.
• 2 in 1 - thanks to the plug, the stopper can be used not only during fermentation, but also during storage of liquor or preserves. You do not need two separate stoppers - this one is enough.
• A practical plug integrated with the stopper - you do not need to worry about losing the plug, as it has a flexible connection with the stopper and will always remain at your disposal.
• Easy to use and tight - you can easily place the stopper in the opening intended for it and the plug will provide the proper tightness.

A perfect, white, rubber fermentation stopper intended for various types of containers in which the fermentation is carried out. The stopper is compatible with:
- fermentation containers
- plastic demijohns for wine
- jars for fermenting and pickling in brine.

You can place a plastic or glass airlock in the stopper. Thanks to the innovative design of this stopper, you can use it either for conducting fermentation or to close a container tightly. You no longer need to supply yourself with two types of stoppers - with opening and solid. Now you only need one stopper type, excellent at performing two functions.

The plug that is attached permanently to the stopper ensures changing the stopper function at any moment and without risking losing it somewhere.

Inserting the stopper into the cover of a demijohn, jar or fermentation container is very simple, and so is removing it. The perfect fit of the stopper ensures tight closure.

How to use:
Before using the stopper, wash it in warm water with a dishwashing liquid and then dry it carefully. Install the stopper in a cover, in the opening dedicated for a stopper. In order to conduct fermentation, insert an airlock filled with water in the stopper opening. If you want to close a container tightly, insert the attached plug into the stopper opening.

Product colour: white.