new conical flask

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rodneygullick
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new conical flask

Post by rodneygullick »

my wife bought me a 1liter borosilicate glass conical flask for my birthday I am hoping to use it to put my yeast starters in only problem is that the hole in the neck is too big to fit a conventional rubber bung with air lock looking for suggestions Rodney
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Taz Ales
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Re: new conical flask

Post by Taz Ales »

I tend to just use kitchen foil.
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Capn Ahab
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Re: new conical flask

Post by Capn Ahab »

Boil it with a tin foil cap on it - this will sterilise the cap at the same time. It still allows CO2 to escape when the yeast get going.
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mrlard
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Re: new conical flask

Post by mrlard »

What he said ^^^
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alikocho
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Re: new conical flask

Post by alikocho »

I use laboratory foam stoppers - allows air exchange, but keeps the nasties out. Boil (or autoclave) with them in the flask neck.
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PMowdes
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Re: new conical flask

Post by PMowdes »

What is the internal diameter of the neck? I can pick you up a bung or two and bring them to the next meeting.
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rodneygullick
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Re: new conical flask

Post by rodneygullick »

P Mowdes thanks for the suggestion but I think I will go for the tin foil which taz several others talked about
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