FerMonster 3 Gallon Ported Carboy With Spigot

FerMonster 3 Gallon Ported Carboy With Spigot

Accessories for your Fermonster  
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The Fermonster is a brand new fermenter designed specifically for fermentation. MoreBeer! gave product feedback for over 2 years of development and we think they nailed the design. The large lid allows for easy filling and makes hop or oak additions a breeze. The smooth sides are fantastic for sanitization - no ribs or texture to collect yeast or bacteria. The punted bottom allows sediment to collect to the sides so that you can siphon liquid from the center.  Because they are made from virgin PET plastic, they're nearly unbreakable and a lot safer than similar glass carboys. Also notice the conical top which reduces surface area if you plan to store beer or wine long term.

These ported versions come with our plastic spigot (FE347), allowing for easy racking and sampling!

Made from heavy PET plastic, the same material used in 2 L soda bottles, which is nearly impermeable to oxygen penetration.  Due to the thickness of the material and the overall geometry, the Fermonster does not require ribs or dimples for stability.  That results in a super smooth interior surface that reduces yeast and sediment buildup making it the easiest to clean, most sanitary PET carboy on the market.  The huge 4" opening makes filling a breeze, and cleanup is as easy as wiping down the inside.

These fermentors are completely air-tight and the lids sealed tight with an O-Ring.  Additional O-Rings and Lids both with and without holes are available for purchase, see our You Might Also Need items below.


  • 4" inner diameter wide mouth carboy - easy to clean!
  • Food grade PET plastic construction is nearly impermeable to oxygen penetration
  • No hard to clean dimples or ribs
  • Punted bottom
  • O-Ring and Lid with one hole is included (Fits #10 Stopper)
  • Additional O-Rings and Lids available
  • Weight: 1.5 lbs
  • Temperature Limit: 140° F
  • Height: 14.6 inches
  • Diameter: 9 inches
  • Completely taste and odor free
  • Perfect for Beer, Wine, Cider, Mead, Kombucha or any other fermented beverage!
  • Thick walls for better oxygen barrier.

Please note: the pictured #10 Stopper (FE470VS) and three piece airlock (FE370) are not included.

Item # FE260
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 16 answers
Why did you choose this?
MoreFlavor Store
Wide mouth fermenter.
JEFFERY S on Feb 13, 2023
I am making a aquarium filter
Jon C on Dec 5, 2022
Wide mouth fermenter.
JEFFERY S on Feb 13, 2023
want to do small batch brewing
John A W on Feb 3, 2023
I am making a aquarium filter
Jon C on Dec 5, 2022
i want to start splitting batches
Christopher C on Nov 22, 2022
Wide mouth for fruit additions in bag.
Clay L on Oct 26, 2022
doing small batches
Alejandro Ayala C. on Sep 27, 2022
Secondary fermenting
William M on Sep 9, 2022
Correct dimensions to enable lagering in a small refrigerator
John E G on Sep 7, 2022
Looks easier to rack wine
Melinda M on Sep 6, 2022
I have 8 of them and love the light weight and ease of racking
Sally K on Sep 1, 2022
To make small patches of wine .
Trena W on Aug 22, 2022
Perfect size
Reid H on Jul 13, 2022
To make smaller batches.
Anonymous S on Jul 10, 2022
Downsizing from a 5-gallon to remove headspace
Damien A on Jun 23, 2022
Valued C on Jun 8, 2022
I have one already. Perfect size and weight. Works fine.
Ellis M on May 26, 2022
I brew 3-gallon batches, and wanted to replace my bucket fermenters.
Rick A on Mar 28, 2022
Easy to use and clean
Douglas S on Mar 15, 2022
large mouth
Locke on Mar 8, 2022
Spigot and airlock option
Joanne B on Feb 28, 2022
Looks nice for 2.5 gallon batches
Jason A on Feb 16, 2022
I wanted this size fermenter with a spigot.
RoseMary S on Feb 15, 2022
excellent for 2 gallon brews
Chris Kunath on Feb 9, 2022
I brew small batches. The spigot allows closed transfer to the keg
Tyler T on Jan 22, 2022
For 3 gallon wine kit
D S on Jan 5, 2022
New to brewing and figured I's use it for ciders
Jeff B on Dec 30, 2021
was going to get more 1 gal jugs. decided to go a little bigger. This had good ratings
Joel S on Dec 17, 2021
Wanted small capacity for 1-1.5 gallon batches, Wide opening, Easy to clean. If it was thick glass, or SS, it would be perfect
4577 Wyndtree D on Dec 15, 2021
For 2.5 Gallon brewing
Craig H on Dec 10, 2021
For wine
Thomas S on Nov 20, 2021
Perfect size for small batches
Kevin on Oct 13, 2021
clean & simple wide mouth fermenter
Gaurav S on Sep 8, 2021
Friend recommended
Brent E on Sep 8, 2021
I have one already and need to rack.
Jeffrey R on Jul 28, 2021
It has a spigot and is 3 gallons.
Craig C on Jul 6, 2021
Great Kombucha fermenter. Spigot hasn't ever clogged and opening is big enough to remove scoby.
Dylan A on Jul 3, 2021
3.2 gal size is convenient for me...split batch
walter c on Jun 15, 2021
really wanted an in between (1-5 gallon) for slightly larger mead production. I have a bunch of 7.5 gallon buckets from beer brewing so this will be great for aging mead off the fruit
Heather J on Jun 10, 2021
The spigot should make racking (and serving!) easier, and the 3 gallon is a great size for what I'm brewing. The ported top for the airlock and the wide mouth for easy ingredient adding and cleaning, a 3-in-1!
Lacey Y on Jun 3, 2021
Secondary Fermentation For Big Stouts And Fruited Sours
Michael Postiff on May 26, 2021
Easy design, seems like people like it, small and stable enough to easily fit in main fridge
Michael W H on May 15, 2021
Replace glass carboy
Jon R on Apr 29, 2021
good price nice design
Thomas C S on Apr 27, 2021
has large opening and a spigot
james p on Apr 16, 2021
Primary kombucha fermentation then splitting into 3 different secondary ferements
Jeremey Y on Apr 7, 2021
Perfect size for learning to make mead.
Geoffrey G on Mar 18, 2021
making 2 gallon batches of mead
aubrey o on Mar 18, 2021
I have the 5 gal version which has been great, but I wanted the smaller footprint and will be bequeathing the 5 gal to a friend.
Shawn H on Mar 4, 2021
Wanted something more than a 2 gallon jug
Augustine S on Feb 11, 2021
JOHNNIE S on Jan 12, 2021
want to do small batch brewing
John A W on Feb 3, 2023
i want to start splitting batches
Christopher C on Nov 22, 2022
what is the actual internal volume? Is it 3 gal or is there headroom to make a full 3 gal batch?
Alexander Grima on Dec 8, 2020
BEST ANSWER: This was my first fermentation vessel and I was a bit timid and did only 2.5 gal batches. However, I think 3 gal should work fine. My measurement put 3 gal at just below the shoulder of the carboy--so there is headspace.
What size tubing works with the spigot?
Todd Kellman on Jun 8, 2020
BEST ANSWER: The spigot on these is designed to use a 3/8" tube. If necessary you can use a larger tube with a clamp or potentially squeeze on a smaller tube that you've warmed in hot water first.
Are there volume marking on the side? If so, in what denominations? [gallons only, half gallon, etc]
Christopher C on Nov 23, 2022
FerMonster 3 Gallon Ported Carboy With Spigot
FerMonster 3 Gallon Ported Carboy With Spigot
FerMonster 3 Gallon Ported Carboy (Spigot Not Included)
FerMonster 3 Gallon Ported Carboy (Spigot Not Included)
BEST ANSWER: There are not. But what I did was fill it with a half gallon of water at a time then mark the outside with a sharpie. So now I have volume markings in the units I want.
What setup for a blow off would I use with this 3 gallon fermonster?
Zachary Amarante on Jul 21, 2019
BEST ANSWER: I bought the #10 silicone stopper and SS blow off tube from MoreBeer. Blow off tube dumps into a large mason jar filled with starsan.

4.0 / 5.0
18 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 2 out of 5
Way too thin
The body of this container is extremely thin plastic, making it difficult to move while full, and causing the spigot's seal to leak when turning it. The included spigot is so weak it snapped when finger tightening during the second time I used it.
February 12, 2023
1 year ago
Response from MoreFlavor
We are so sorry to hear about your bad experience with the order. You are still within our return policy and warranty window for a damaged product. Please go to our website, scroll to the bottom of the page, and use the Return an Item form and we will set you up. Cheers!
February 15, 2023
Rated 2 out of 5
Plastic is to thin to use wtih a spigot
The plastic is so thin that, when operating the spigot, the carboy material bends, compromising the seal. The spigot has to be operated with two hands to work propierly/
January 24, 2023
1 year ago
Rated 1 out of 5
The product needs to be thicker and as a result was damaged on receipt, however, I was refunded with no problem. Bought a 3 gallon Speidel instead (already have 4 of the 7.9 liters units) and am much happier.
January 26, 2022
over 2 years ago
Rated 5 out of 5
The best!
Love this! I use it for phytoplankton cultures and it very convenient to have a wide opening to clean and sanitize
January 11, 2022
over 2 years ago
Rated 5 out of 5
Works FIne.
Nice fermenter. seems durable and well made. I'm trying it with a batch of beer and so far, so good. I'll probably get a higher quality valve at some point in the future, however.
May 18, 2021
over 3 years ago
Rated 4 out of 5
So far so good
So far only one batch. It is a bit thinner construction than I expected . It is good for small batch fermenting.
April 1, 2021
over 3 years ago
Rated 3 out of 5
Small batch fermenter for exbeeriments!
Pros - the cap screws on, so no fiddling with keeping it tight. Love the rubber gasket in the cap. Perfectly clear, so you can see what's going on during a fermentation.

Cons - I'm picking nits here - the side walls are a little thin - there are 2 seams running up the vessel from the blow molding process - it concerned me when I cleaned it with 130 degree water. I will be getting a solid cap and setting it up with a stainless thermowell and a second hole for a blowoff tube. There seems to be a lot of deadspace in it - 1.9 Liters in the ported fermenter. No marks for liquid measure.

Overall - recommend if you need a lightweight, inexpensive plastic fermenter. You might like the non-ported version more.
December 27, 2020
over 3 years ago
Rated 5 out of 5
Great fermenter
Perfect replacement to my plastic buckets. So far I'm very impressed with this fermenter. Hand tightening the spigot yielded no leaks and kept me from having to get out a wrench to crank it down. The lid was pretty tight after leaving it full for 3 weeks but I was able to get it off without the tool and the krausen ring pretty much rinsed off the side wall. Will likely buy more of these.
November 30, 2020
over 3 years ago
Rated 5 out of 5
Love them!
I love these things and have several of them. I have both the ported and non-ported for different uses. As others have stated, yes they are thin, but that hasn’t been an issue for me other then when they are shipped. FedEx has delivered some crushed boxes to request MoreBeer to box the Fermonster box to help guard against this.

These are extremely light, easy to clean, and perfect size for me. One thing to note. I would strongly suggest buying different spigots than what these come with. The problem isn’t so much the spigot that you get but the single washer, which are prone to leak juuuuust enough to give me concern. It has to be tightened just right. Rather than deal with that every time, I bought PERA spigots on Amazon which come with 2 silicone washers so one goes on either side of the fermenter wall. MUCH better design, much easier to tighten, and ZERO leaks.

Overall, the Fermonster is a big winner.
November 7, 2020
Rated 5 out of 5
Splitting batches
Perfect size to split batches
August 23, 2020
over 3 years ago