Author Topic: Supplier...Stir plate...Erlenmeyer flask  (Read 5455 times)

Offline tschmidlin

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #15 on: March 27, 2012, 12:31:24 AM »
You can also use a barbell stir bar, it will work better on a curved bottom bottle if the magnet isn't strong enough to hold a straight stir bar.
Tom Schmidlin

Offline greyghost

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #16 on: March 29, 2012, 11:14:12 PM »
I would like to know where I can get a flat bottom Erlenmeyer flask. Not the cheap ones that have a domed bottom like the ones Morebeer& NorthernBrewer sell. I have a hard time getting the stir bar to work with my stir starter.  It works great with the flat bottom open flasks I have. But they are to small for starters.But they work good for re hydrating dry yeast.

Offline davidgzach

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #17 on: March 30, 2012, 06:06:10 AM »
I would like to know where I can get a flat bottom Erlenmeyer flask. Not the cheap ones that have a domed bottom like the ones Morebeer& NorthernBrewer sell. I have a hard time getting the stir bar to work with my stir starter.  It works great with the flat bottom open flasks I have. But they are to small for starters.But they work good for re hydrating dry yeast.

I had 2-5000ml erlenmeyers from Midwest that basically broke in my hands with hot water in them.  I then asked my LHBS-Keystone Homebrew if they could get me a Pyrex flask.  It took a few weeks but he located a Bomex (same thing) 5000ml that has a flat bottom and I can use on my electric stove.  Man, it made making starters a breeze now that I can boil and place directly in an ice bath with no worries.  It was expensive ($80) but so worth it.  Have a good look around the web.

Dave
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Offline roguejim

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #18 on: March 30, 2012, 11:34:45 AM »
So, is there a preferred brand of erlenmeyer flask?  I see quite a few negative reviews for the ones sold at N. Brewer.

Offline tschmidlin

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #19 on: March 30, 2012, 11:00:47 PM »
So, is there a preferred brand of erlenmeyer flask?  I see quite a few negative reviews for the ones sold at N. Brewer.
Pyrex or Kimax for me.  i would trust either one.
Tom Schmidlin

Offline DaveR

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #20 on: April 03, 2012, 08:55:14 AM »
So, is there a preferred brand of erlenmeyer flask?  I see quite a few negative reviews for the ones sold at N. Brewer.
Pyrex or Kimax for me.  i would trust either one.

Kimax has a wide mouth 2 liter. That's my favorite for making starters. Wide mouth is easier to use, I find. Pyrex may make a wide mouth, too. I don't know.

http://cynmar.com/ProductDetail/11533083_Kimax-Heavy-Duty-Wide-Mouth-Flask-2000ml

Offline roguejim

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #21 on: April 03, 2012, 05:56:13 PM »
You can also use a barbell stir bar, it will work better on a curved bottom bottle if the magnet isn't strong enough to hold a straight stir bar.

Tom, where do you find barbell stir bars?

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Offline tschmidlin

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #23 on: April 03, 2012, 11:53:29 PM »
You can also use a barbell stir bar, it will work better on a curved bottom bottle if the magnet isn't strong enough to hold a straight stir bar.

Tom, where do you find barbell stir bars?
One of my clubs did a buy from stirbars.com
Tom Schmidlin

Offline roguejim

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #24 on: April 06, 2012, 05:33:48 PM »
I've seen some stir bars with a center ring.  Would that style work in a jar with a slightly concave bottom?  2 inch length?

Offline tschmidlin

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #25 on: April 06, 2012, 05:35:13 PM »
I've seen some stir bars with a center ring.  Would that style work in a jar with a slightly concave bottom?  2 inch length?
It works ok, throws less often than a straight bar with flat edges, but more often than a barbell in my experience.
Tom Schmidlin

Offline roguejim

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #26 on: April 06, 2012, 07:25:02 PM »
Sounds like I'd better just go with a flat bottom vessel.

Offline dzlater

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #27 on: April 07, 2012, 04:13:26 AM »
I bought my 2000ml flask here:
https://bellsbeer.com/store/categories/Homebrewing-Supplies/Brewing-Equipment-%26-Supplies/Yeast-Starter-Equipment/
It's a nice flask, and about the best price I could find.
They also have stirplates, but I am not sure how the prices compare as I made mine.

Offline tschmidlin

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #28 on: April 07, 2012, 10:08:06 PM »
Sounds like I'd better just go with a flat bottom vessel.
If you have the $$ sure, they are nice for boiling/chilling/making your starters.  If you're not going to take advantage of these features though, I wouldn't bother spending the money.  You can get by fine with a glass jug, no problem.  Just boil/chill the starter wort in something else.
Tom Schmidlin

Offline roguejim

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Re: Supplier...Stir plate...Erlenmeyer flask
« Reply #29 on: April 08, 2012, 01:59:21 AM »
I bought my 2000ml flask here:
https://bellsbeer.com/store/categories/Homebrewing-Supplies/Brewing-Equipment-%26-Supplies/Yeast-Starter-Equipment/
It's a nice flask, and about the best price I could find.
They also have stirplates, but I am not sure how the prices compare as I made mine.

Thanks for the link.  But, would a 2 liter flask be large enough for a 2 liter starter, i.e., enough head space?