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Old 02-20-2013, 04:52 PM   #11
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The yeast doesn't care what you make the starter in. The flask is convenient, and it looks cool, but a starter can be made in any vessel that can hold liquid. I've seen everything, including beer glasses being used. A mason jar works just skiffy.


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Old 02-20-2013, 04:56 PM   #12
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Quote:
Originally Posted by alien View Post
Home defense? Ah yes, the Erlenmeyer makes an excellent Molotov cocktail. In between revolutionary uprisings the Erlenmeyer could make a handy wine decanter.
Long neck beer bottles can be used as a deadly weapon. This one's a little extra tall... a Guiness bottle.

Bombers are make you look like a glass-wielding gorilla. I think this was a Knee Deep Hoptologist.

A 5L Erlenmeyer is the nuclear option. It's a lot of glass to dig out of the your face. Can easily knock people out with its heft if hit from behind.



(excuse my desk, I was making stir plates at it)


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Old 02-20-2013, 04:57 PM   #13
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I switched from a mason jar to a flask because of the curved bottom of the jar. The flask was the only thing I could find with a flat bottom, and I bought an off-brand and saved a ton. It's made from borosilicate, but I still don't boil and cool in it.

BTW, flame sanitizing your foil isn't particularly necessary. A quick dip in Starsan, and you're good to go.

 
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Old 02-20-2013, 05:02 PM   #14
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Just in case anybody's interested, that 5000ml is on Amazon for $46 shipped via Prime. I've seen them up to $70 shipped.

Arrived double-boxed. Takes a #12 stopper. I'll be ditching the foil soon for a foam stopper. Very heavy, very sturdy. This one's thicker and heavier than the one sold at my LHBS (didn't know it would be til it arrived). Stove tested it last night, then sprayed it down with hot water, then cold water, then into an ice bath. Handled the thermal shock fine.

http://www.amazon.com/213G17-Karter-...dp/B006UKI9X4/
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Old 02-20-2013, 05:18 PM   #15
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It's a monster!

 
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Old 02-20-2013, 05:26 PM   #16
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Quote:
Originally Posted by alien View Post
So the advantage of an Erlenmeyer is that it has a narrow neck so which reduces the risk of contamination.

I'm going to save $10 and use a Mason jar with a bit of flame-sterilized Aluminium foil over the top. Might even be legal in Texas.

Unless you all can persuade me otherwise
No, the advantage of an Erlenmeyer is that you can boil the starter right on the stove, chill it down right in the flask, and add the yeast.

The next advantage is you get a nice vortex and don't throw the stirbar.
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Old 02-20-2013, 06:29 PM   #17
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Quote:
Originally Posted by iaefebs View Post
It may or may not explode and the measurement are suspect. Even the best can be off 5%. The best way to check your Erlenmeyer is to put it on a accurate scale and see how close it is.
How do you know when it is safe to go from heat to ice? Is it ever safe? I've done it many times without incident but of course that proves nothing. I've googled, but just keep finding, "thermoshock resistant", which is not shock proof.

Another advantage according to a seller: The advantage to the Erlenmeyer Flask is that the bottom is wider than the top so it will heat quicker because of the greater surface area exposed to the heat.

 
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Old 02-20-2013, 06:33 PM   #18
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Judgement call.

My routine seems to be leave it for a few minutes after flameout, then get the kitchen hose sprayer and spray it with hot water, then warm water, then cold water, then into a cold water bath, then add ice. Whole process takes maybe 10 minutes.

I don't think we're terribly worried about the temperature difference between the wort and the chill water. We're worried about the temperature difference between the glass and the chill water. Stepping it down with the hose sprayer seems to work for me. By the time it's in the ice bath, a 5L starter is probably still at 190-200F. Mine took almost an hour and three sink fulls of 58F water to cool last night. :\
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Old 02-20-2013, 06:54 PM   #19
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Quote:
Originally Posted by TheZymurgist View Post
I switched from a mason jar to a flask because of the curved bottom of the jar. The flask was the only thing I could find with a flat bottom, and I bought an off-brand and saved a ton. It's made from borosilicate, but I still don't boil and cool in it.

BTW, flame sanitizing your foil isn't particularly necessary. A quick dip in Starsan, and you're good to go.
I bought an off brand flask and the damn thing broke the first time I tried heating in it. I didn't even put it cold water. I won't get anything but Kimax or Pyrex from now on.

 
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Old 02-20-2013, 07:29 PM   #20
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Quote:
Originally Posted by Yooper View Post
No, the advantage of an Erlenmeyer is that you can boil the starter right on the stove, chill it down right in the flask, and add the yeast.

The next advantage is you get a nice vortex and don't throw the stirbar.
Why not a flat bottomed pyrex jug or beaker then.



 
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