Erlenmeyer Flasks

[mika]

I'm sorry, I must be a bit dense. I thought people were culturing yest in these flasks. Why are they being subject to such extremes of temp ? Am I missing something ??

 

[Oblomov]

I'm sorry, I must be a bit dense. I thought people were culturing yest in these flasks. Why are they being subject to such extremes of temp ? Am I missing something ??

[post="126606"][/post]​

You boil the wort inside the flask and then cool it. Since you're not doing a transfer, it cuts down the infection risk.

 

[Trough Lolly]

I'm sorry, I must be a bit dense. I thought people were culturing yest in these flasks. Why are they being subject to such extremes of temp ? Am I missing something ??

[post="126606"][/post]​

No, you're not dense, just overlooking a preparatory process - as Oblomov points out, we need to build a medium to culture the yeast in so we effectively make a micro wort out of malt extract, boil it briefly and then chill down to yeast pitching temps - the borosilicate flasks can handle flame and thus you can boil, chill and pitch in the one vessel.

Cheers,
TL

 

[KillerRx4]

The erlenmeyer flask method seemed like a great idea so I got me some flasks & boiled away the dme & water.

I think I may have a further risk of infection. When boiling it always foams up & boils over, even with 1lt wort in a 2lt flask.

The coopers light dry malt im using doesnt seem to disolve completely & theres bits of undisloved malt that get picked up by the foam & coat the flask sides, rim, foil & then down the outsides.

I have used LHBS purchased dme before that had a more crystal appearance & im pretty sure that stuff dissolved completely. maybe the coopers dme is the problem?


How do you guys go, anyone get that happening? & is it a concern?

 

[nifty]

I used the Coopers dme and had the same thing happen. It looked like tea leaves floating around in the wort. I didn't want to risk it, so tipped it and used normal HBS dme.

nifty

 

[Trough Lolly]

You guys aren't getting the floaties confused with coagulated proteins are you?

TL

 

[KillerRx4]

Not sure TL, can you educate me as to what coagulated proteins are?

 

[nifty]

I've only had the floaties with the Coopers dme, never with other brands.

nifty

 

[Crazy]

What is the consences on sealing a Erlenmeyer Flask while doing a starter, Glad wrap, Bung or foil?

Derrick

 

[vlbaby]

What is the consences on sealing a Erlenmeyer Flask while doing a starter, Glad wrap, Bung or foil?

Derrick

[post="126869"][/post]​

I use foil for when boiling the wort and chilling the wort, but when it comes time to pitching the yeast I use a rubber bung with an airlock.


vl.

 

[Crazy]

I use foil for when boiling the wort and chilling the wort, but when it comes time to pitching the yeast I use a rubber bung with an airlock.


vl.

[post="126883"][/post]​

[/quote]


Cool I was just wondering as out of my three flasks they have two different sizes for the bung and neather seems to be standard.

Derrick

 

[razz]

I use foil, then when it goes on the stir plate I put a rubber band around the foil.

 

[Beersuit]

Necro alert. I just had my 3lt Schott Duran flask break and am now in the market for a quality flask again. Does anyone know where I can get one without pawning off a well worked kidney.

 

[Nullnvoid]

I have had great success with Mad About Science. Good prices and the flasks have been great. All there stuff is great.

 

[good4whatAlesU]

Slightly OT, but when I was making up a bunch of agar - the quickest way to heat it was to bung the beaker in the microwave. No need for hot plates/gas or mucking about.
Just do a few test runs to work out how long on which power level to get it heated without boil over.

 

[Beersuit]

Thanks Nullnvoid will have a look. Might upscale and get 2 x 5 lt flasks while im going. I know keg king do them cheap but was after something a little better.

 

[Roosterboy]

I have had great success with Mad About Science. Good prices and the flasks have been great. All there stuff is great.

From their web site , the flasks are not European made and especially not German , you get what you pay for. I can get German made Schott Duran or cheaper Czech made , they're superior flasks.

 

[Beersuit]

Any links Roosterboy. I would rather buy quality.

 

[Roosterboy]

Any links Roosterboy. I would rather buy quality.

I'll check out if I can get competitive freight to QLD. Freight is often the problem unless you process large numbers and can do a deal with a freight company.

 

[evoo4u]

I'll check out if I can get competitive freight to QLD. Freight is often the problem unless you process large numbers and can do a deal with a freight company.

I regularly use http://www.transdirect.com.au/ which provides a range of quotes from various freight outfits, as they're freight brokers. PM me your name and email, and I can "refer" you, and you'll get 20% off the quoted price of your first freight consignment.