Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > LHBS doesn't carry drilled stopper for 2L erlenmeyer
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Old 07-04-2013, 08:35 PM   #1
Ciliatus
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Default LHBS doesn't carry drilled stopper for 2L erlenmeyer

And I need to make a starter for a brew this weekend. Suggestions? Should I just use aluminum foil over the top? Seems a bit iffy to me.


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Old 07-04-2013, 08:41 PM   #2
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I've always just used foil on starters. Once it gets going the co2 blanket will protect the yeast from any critters in the air.


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Old 07-04-2013, 08:51 PM   #3
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That settles it then. Thanks.
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Old 07-04-2013, 08:56 PM   #4
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Foil is always best for starters. You want the oxygen to get in there, and just want to keep flying debris from getting in. Foil works.
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Old 07-04-2013, 09:04 PM   #5
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Always been leary of foil, but you definitely want to allow for air in/CO2 out, so I rubber-band a thick sterile gauze pad over my flasks while they're in service. Single-use, obviously.

I've been thinking of getting some of these, which would seem to provide the best of all worlds, but the shipping costs are effin' ridiculous, so they'll have to wait until I come up with a bigger cart...

Cheers!
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Old 07-04-2013, 09:38 PM   #6
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Quote:
Originally Posted by day_trippr View Post
Always been leary of foil, but you definitely want to allow for air in/CO2 out, so I rubber-band a thick sterile gauze pad over my flasks while they're in service. Single-use, obviously.

I've been thinking of getting some of these, which would seem to provide the best of all worlds, but the shipping costs are effin' ridiculous, so they'll have to wait until I come up with a bigger cart...
Helluva markup on a $0.80 piece (retail!)

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Old 07-04-2013, 09:57 PM   #7
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I haven't tried foil because I wouldn't want a fruit fly or something making it in. Yes/no?
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Old 07-05-2013, 02:12 AM   #8
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Foil sprayed with StarSan. I've never had an issue with any critters getting into the flask.
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Old 07-05-2013, 02:19 AM   #9
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Quote:
Originally Posted by DanH View Post
I haven't tried foil because I wouldn't want a fruit fly or something making it in. Yes/no?
Have you got a lot of fruit flies?

If you mold the foil over the mouth of the flask it would take an exceptional fruit fly to get in there.

I have used the foam stoppers and foil - no problems. a
Although once one foamed up and the dried krausen glued the foam to the glass. I had to spray Starsan to loosen the crud.
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Old 07-05-2013, 03:24 AM   #10
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Quote:
Originally Posted by kh54s10

Have you got a lot of fruit flies?

If you mold the foil over the mouth of the flask it would take an exceptional fruit fly to get in there.
A lot? No, but I've seen a couple around so I wasn't sure. I will try your advice of molding the foil next time I do a starter.


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