Erlenmeyer Flask (3000 ml)

Erlenmeyer Flask (3000 ml)

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The perfect container for rehydrating yeast or mixing up additions. Erlenmeyer flasks allow you to swirl your yeast or acid, tannins, nutrients, etc. into solution. The clear glass allows you to see when the solution is fully mixed.

In the lab world, these are known as "Student Grade"

Made from Borosilicate glass, it can be rapidly heated or cooled without the risk of cracking.


  • 3L (3000ML) Capacity
  • Made from Borosilicate Glass
  • Fantastic price for a flask of this size
  • Produced for MoreWine!

Kegland Part Number: KL03995

Item # Y440
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 2 LBS
Community Q&A

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Browse 4 questions Browse 4 questions and 14 answers
Why did you choose this?
MoreFlavor Store
To go with magnetic plate
Logan Patrick on Nov 24, 2022
Larger starter size
Derrik C on Jul 20, 2022
To go with magnetic plate
Logan Patrick on Nov 24, 2022
Daniel C on Nov 10, 2022
Larger starter size
Derrik C on Jul 20, 2022
Need to do bigger yeast starters
PAUL C on Jul 7, 2022
Been looking for one that size.
Todd J on Mar 15, 2022
Nice big starters
Chris Dornbach on Mar 9, 2022
Nicholas K on Feb 15, 2022
This will be used to make huge starters
Eric E on Feb 12, 2022
Yeast starter for 5-gal batches
Allen W on Feb 8, 2022
300ml AND has a flat bottom!!!
Lloyd M on Jan 25, 2022
smaller flasks tend to boil over
Douglas Pyle on Jan 22, 2022
Cold IPA starter
Alan H on Dec 17, 2021
Robert J W on Nov 25, 2021
Plan to start overbuilding yeast starters. Current flask is not big enough to do this for ten gallon batches.
Leo Nelson Davies on Nov 5, 2021
Karla H on Oct 29, 2021
Overbuild yeast
Benjamin Lewis on Oct 27, 2021
Size and price.
SAMUEL A G on Oct 13, 2021
Will use to mix yeast…
John T on Oct 8, 2021
Great for making a 2L yeast starter... BOOM!
Daniel Z on Sep 18, 2021
Correct size to go along with the stir plate I ordered.
Robert M on Feb 23, 2021
Yeast starters
Chief on Feb 6, 2021
correct size for starters I'd like to make. made of borosilicate
STEVEN W on Jan 15, 2021
Gives me plenty of room for my average yeast starter
Robert W on Dec 30, 2020
For starters lager than 2L
Richard Gonchar on Dec 14, 2020
The size and price
Dropped it
Alex Lisenko on Oct 20, 2020
Sweet spot for regular and high-gravity brews
Robert A on Oct 12, 2020
Need to make big starters
Keith N on Aug 14, 2020
Great for lagers
Miles M on Jul 3, 2020
best value
jake w on Jun 17, 2020
need it for making starters for my harvested yeast
Darwin T on Apr 28, 2020
for 10 gallon lager starters
Christopher H on Apr 12, 2020
Let’s me make 2 L starter with enough head soace
Frank A C on Mar 27, 2020
I use it to make starters
Steve on Mar 26, 2020
Enough size for large starters
Blair N on Feb 7, 2020
Picked this because it has a flat bottom for use on my stir plate
Robert Wronecki on Jan 6, 2020
bigger lager starters
Douglas M on Dec 31, 2019
larger starters
Evan R on Nov 1, 2019
Yeast Starters
Brett M on Oct 25, 2019
Lager starters
david todd on Sep 5, 2019
grow yeast cultures
Michael L on Sep 4, 2019
Yeast starter
Brandon W on Jul 17, 2019
large starter
Robert B Heine on Jun 3, 2019
Needing at least 2 L for my yeast starter
DanVic on May 20, 2019
To make larger starters
Charles Carter on Feb 2, 2019
My son brews!
Amanda R A on Jan 7, 2019
My fiancee wanted it
Jessica R on Dec 15, 2018
gift request
Carrie L. S on Dec 12, 2018
Brewing a Belgian Quad. Need a large starter
Scott M P on Nov 17, 2018
Good price, and I need larger than 2L flask for older yeasts.
Evan R on Sep 19, 2018
Daniel C on Nov 10, 2022
Need to do bigger yeast starters
PAUL C on Jul 7, 2022
Is the bottom flat? The one i have from elsewhere doesn't and it is useless on my stir plate.
Ashton Guthrie on Mar 9, 2018
BEST ANSWER: Mine was not flat, but I reached out to MoreBeer and they're sending a replacement. Great customer service!
What size stopper fits this flask?
Kirk Slocum on Jun 28, 2018
BEST ANSWER: #10.5 is too big for this flask - I bought one and it didn't fit. a #10 fits just right.
Does is come with a foam stopper?
William Robbins on Jul 26, 2019
BEST ANSWER: It does not come with any stopper, but it is a great flask. Highly recommended. I also purchased the 5000 ml at the same time and wished I’d bought 2 of the 3000 ml for doing back to back yeast batches.
What high of the flask?
Viktor Vitishko on Oct 2, 2018
BEST ANSWER: the 3000ML is 12 and 1/4 inches high. Great flask!

4.4 / 5.0
17 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
MoreBeer Stands Behind These Flasks!
I gave this one star in another review because the bottom was not flat, but I should have waited until I reached out to MoreBeer. They said these are supposed to be flat and are sending my a new one.

I tried to edit or delete my other review, but there's not an option to do this.

I appreciate MoreBeer's customer service!
June 24, 2023
Rated 1 out of 5
Will not work on a stir plate.
The flask I received has an extremely concave bottom, over 1/4" deep. I tried to run a stir bar with water, but it throws it within a second or two every time at every speed.

Maybe I received a defective one based on other reviews that say the bottom is flat. I've sent a return request to MoreBeer. If it turns out this one was just defective and they send a good replacement, I'll delete my review if I'm able to.
>1.4 inch
7 mm
User submitted image
User submitted image
June 23, 2023
Rated 5 out of 5
Great buy!
Very well packed and the bottom is completely flat.
May 19, 2021
over 3 years ago
Rated 5 out of 5
Good deal
Good price, Product as describes good quality
January 21, 2021
over 3 years ago
Rated 5 out of 5
Gets the job done!
Not much to say. It’s a nice big flask. For high gravity beers where you’ll want 2L of starter, this is a nice option because you can boil your wort right on the stove top in the flask and then stir by hand or put on a stir plate after it cools.
January 11, 2021
over 3 years ago
Rated 5 out of 5
must have for starters
Perfect size to make a 2L starter
October 9, 2020
over 3 years ago
Rated 3 out of 5
Bottom not flat
The flask does not have a flat bottom, which can be an issue with the stir bar sliding off. On a simple water test, the stir bar stayed in place; however, I have yet to try it with a starter.

On a more positive note, the flask arrived well packaged and in good condition.
August 7, 2020
over 4 years ago
Rated 5 out of 5
Flask for starters
Works great. As advertised.
April 16, 2020
over 4 years ago
Rated 5 out of 5
Bring on the big stuff. Big beers or lots of beer this will allow you to make a big enough starter for a 10 gallon batch
Good quality thick glass which should hold up overtime. Let’s me do bigger starters.
April 10, 2020
over 4 years ago
Rated 3 out of 5
NOT for use with a stir plate :(
The 3000ml flasks that are currently being shipped have a concave (not flat) bottom. If you intend to use a stir plate, this is not the flask for you. Otherwise, the flask I received is sturdy and without defects. Mike from Customer Service was professional and assisted me with the return.
January 10, 2020
over 4 years ago