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Foam Stopper 35-45mm

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Foam Stopper 35-45mm

SKU: 7090



Breathable foam stoppers will withstand boiling or autoclaving temperatures, making them ideal for use in preparing a yeast starter. Fits1000 ml flasks.
Details & Instructions

Additional Information

5.0 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Works great
I use it on my 1000 ml flask when making starters. Worked perfectly.
December 31, 2012
Upgrade from tin foil
I have been making yeast starters for over a year and have been using tin foil for the top of my flask. I upgraded to the foam stopper last weekend and man I love these things. I should have spent the pennies a year ago. So much nicer and definately a more sanitary fit in the top of the flask.
March 21, 2013
Great for starters
This foam stopper is a perfect fit for my 1 liter Erlenmeyer flask. Why waste foil when you can get one of these for less than a buck, and use it again and again?
October 16, 2013
Great for yeast starters
This stopper is great for for yeast starter flasks. Mine both discolored but a simple wash in sanitizer keeps them in good condition.
February 1, 2014
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