Foam Stopper 35-45mm

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Product details

Breathable foam stoppers will withstand boiling or autoclaving temperatures, making them ideal for use in preparing a yeast starter. The honeycomb structure of the foam stoppers will act is a filter for any airborne bacteria or wild yeast that might enter the flask. That important because a lot of air is sucked into the flask while it is cooling. You can also leave the stoppers on the flask instead of a fermentation lock. Some people use foam stoppers to replace fermentation locks in their carboys, too.

The small foam stoppers are 35-45mm wide and fit our 500 or 1000 ml borosilicate glass flasks, or a glass carboy.

Additional information

SKU

42949

Customer Reviews

Based on 15 reviews
100%
(15)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
T
T.H.
Foam stopper

Work well for different sized container openings

B
B.B.
foam stopper

Works fine! I use it in a gallon jug when I make a yeast starter.

C
C.T.
It will work

Almost too small for fast pitch but it works.

S
S.
Foam stopper

Quality product.

D
D.L.

Foam stopper is exactly what it should be.

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Foam Stopper 35-45mm

Foam Stopper 35-45mm

Customer Reviews

Based on 15 reviews
100%
(15)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
T
T.H.
Foam stopper

Work well for different sized container openings

B
B.B.
foam stopper

Works fine! I use it in a gallon jug when I make a yeast starter.

C
C.T.
It will work

Almost too small for fast pitch but it works.

S
S.
Foam stopper

Quality product.

D
D.L.

Foam stopper is exactly what it should be.