FERMONSTER LID OPENER for Wide Mouth PET Carboy Fermenters from Vintage Shop


This easy-to-use lid opener will quickly and easily open tight or slippery FerMonster lids without a ruckus disturbing the sediment.  No more straining or busted knuckles. It works with all FerMonster carboy caps.  Allows you to peacefully unscrew the lid from the FerMonsters after your fermentation without violence or frustration.  WE DO NOT recommend using it to tighten the lid as the seal is done by the o-ring not the pressure between the lid o-ring and neck. Fermonster Fermenters and lids are shown for example and are not Included.  Made in Canada by our friends at Vintage Shop.

6 in stock



  • Fits Vintage Shop Fermonster fermenter lids.
  • Easy to use, makes removing a tight or slippery lid fast and easy.
  • Lightweight, durable, stain resistant and will not shatter if dropped.
  • 100% Virgin HDPE materials, no plasticizers and BPA free.
  • Rated to 140 degrees F – 100% Made in Canada.


Additional information

Weight 3 oz
Dimensions 9 × 6 × 1 in


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