Fermentation Airlock- Bubbler
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Fill with water and insert in drilled stopper or bung to vent gases during fermentation. "Bubbler" style airlock makes a gratifying "bloop" noise during active fermentation. It is the preferred airlock for secondary fermentation, as it is possible to monitor the pressure inside the fermenter.
Suitable for thorough cleaning of copper (pans, trays, etc.), brass (curtain rails, doorknobs, etc.) and bronze items Ammonia-free Cleans without scratching, with a cloth on smooth surfaces and with an old toothbrush for instance on very chiselled surfaces