FerMonster Carboy With Spigot - 7 gal.

FerMonster Carboy With Spigot - 7 gal.

Accessories for your Fermonster  
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The Ported 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 large 7 gallon size was designed to provide ample space for fermentation and you'll find the molded in volume markers super handy for accurate filling. 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 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.  The 7 gallon volume is a monster of a fermenter, reducing blowoff issues seen with standard 5 and 6 gallon carboys. Fermonsters are easily moved by hand or consider using our Carboy Carrier for even greater ease of use.

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" wide mouth carboy - easy to clean!
  • Ported version includes Spigot for easy racking
  • Food grade PET plastic construction is nearly impermeable to oxygen penetration
  • No hard to clean dimples or ribs
  • Volume Markers at 5, 6, and 7 Gallons
  • 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: 20.9 inches
  • Diameter: 11.3 inches
  • Completely taste and odor free
  • Perfect for Beer, Wine, Cider, Mead, Kombucha or any other fermented beverage!
Item # FE257
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 2 LBS
Community Q&A

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Browse 3 questions Browse 3 questions and 57 answers
Why did you choose this?
MoreFlavor Store
Ordered two last month and love them
Maarten van der G on Dec 3, 2020
I need to replace my better bottle fermenters and I like that I can reach in and give it a good cleaning.
Christopher P on Dec 2, 2020
Ordered two last month and love them
Maarten van der G on Dec 3, 2020
These are convenient for cold crashing
Jeff C on Dec 3, 2020
I need to replace my better bottle fermenters and I like that I can reach in and give it a good cleaning.
Christopher P on Dec 2, 2020
Quality item at a great price. I can see the fermentation in action.
Jeffrey D W on Dec 2, 2020
Request from husband :)
Beth N on Dec 1, 2020
for fermenting beer
Robert Bridenbecker on Nov 29, 2020
Need a second fermenter
Lori P on Nov 29, 2020
inexpensive and spigot makes for easy bottling
Andrew H on Nov 28, 2020
Great value for the price
Richard J. Ackerman S on Nov 17, 2020
spigot and large mouth
stacey r on Nov 3, 2020
Destroyed the one that came with the kit I've bought hahaha
The size
bruce b on Oct 25, 2020
Wanted 2nd secondary fermenter for split batch
Daniel T on Oct 22, 2020
buying a second fermentation tank
seth t on Oct 20, 2020
glass is too heavy/fragile and I wanted spigot for easier gravity readings.
Dallas R on Oct 8, 2020
Wanted another Fermentor
Brandon H on Oct 6, 2020
Finally ready to replace the better bottles!
Blake F on Oct 6, 2020
Easy use
Joseph C on Sep 30, 2020
Creating a customized premium kit.
Thomas m on Sep 26, 2020
need something to make it in
Ride monger on Sep 25, 2020
Own one, it's good
Daniel R S on Sep 22, 2020
looks like they will be easy to clean
Joe V. on Sep 21, 2020
Just starting 5 gallon batches, this sound ideal because I want a spigot, plus the price is right!
Charles B on Sep 15, 2020
Love the 2 I have
Christopher B on Sep 14, 2020
7 gal wide mouth container solves a few of my problems
Dale J on Sep 10, 2020
Great headspace, reasonable price
Ryland Matthews on Sep 7, 2020
Need a secondary
Josh B on Aug 29, 2020
Need to retire one of my fermentation buckets.
Robert C on Aug 27, 2020
current one is getting old
Scott S on Aug 18, 2020
I love these
troy s on Aug 5, 2020
High SG beers blowing lid off of 6 gal plastic bucket
Edward T on Aug 4, 2020
To have extra carboys
Alex D on Jul 31, 2020
Glass Carboy replacement
Nathan Krull on Jul 31, 2020
Recommended by friend
Jordan O on Jul 31, 2020
i like to check fermentation and glass is getting too heavy
Gary H on Jul 29, 2020
So I can pressure transfer without oxidizing my beer
Wayne S on Jul 28, 2020
Need a second fermenter
Craig H on Jul 23, 2020
After using glass carboys and buckets, this is a best of both world solution
Noah O on Jul 11, 2020
want a second batch of beer
richard m on Jul 8, 2020
Moving away from glass, but want to see fermentation, transfer easily via spigot, clean easily via wide mouth, solid cap also available. No down side.
Vinton L on Jul 1, 2020
easy to clean
Randy P on Jun 26, 2020
Just broke a 6 gal glass carboy. I have one 7 gallon fermonster and it is perfect. Ordering 2 more 7 gallon for future brews. O ring is funky, so I threw it away. Seals well for brew.
Joseph O on Jun 23, 2020
have one and love it.
Todd S on Jun 18, 2020
Easier to clean than my glass carboy and no need for racking cane.
Paul E on Jun 4, 2020
Was time to get some new fermenters and these seemed like a good thing to try vs Northern Brewer Big Mouth Bubbler.
Cody S on Jun 4, 2020
I have one of these already and it works so well that I wanted a second!
Christopher W on Jun 4, 2020
best combination of price and average review
Erich R on May 29, 2020
good reviews
Matthew A on May 25, 2020
For fermenting 5 gallon batches with plenty of head space.
Jay S on May 21, 2020
I broke my 6 gallon Glass carboy. This one seems like it will be a good choice.
Kurt L on May 19, 2020
These are convenient for cold crashing
Jeff C on Dec 3, 2020
Quality item at a great price. I can see the fermentation in action.
Jeffrey D W on Dec 2, 2020
Has anyone had to use a blow off tube and if so what OD?
Michael Cundiff on Feb 25, 2018
BEST ANSWER: Hi Michael,
I've had this fermenter for over a year fermenting 5.5 and 6 gal batches. With aggressive yeast I'll attach a blow off tube. Simply insert a 1/2 OD tube into the size #10 stopper that is a recommended purchase from Morebeer. It creates an airtight fi!
What size tubing will fit the spigot?
Ray Pirc on Jul 11, 2018
BEST ANSWER: 3/8 OD tubing works for the spigot.

4.2 / 5.0
73 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Better than buckets
Good sized fermenter and it doubled as a bottling bucket for me. Worked great, good seals and no leaks at the spigot. Very much recommended, along with the strainer that sits in the top opening. I already bought my second one.
December 2, 2020
2 weeks ago
Much better than siphoning
Having the fermenster with a spigot makes transfer of the beer to the bottling bucket so much easier; and less messy. Very happy
November 11, 2020
3 weeks ago
For the price point, this is just ok. Just a very basic fermenter with a spigot. Doesn't even come with an airlock. most brewers prolly have an extra bung and airlock that fits (I did)

I have found the Big Mouth to be a little more and a little better. Big mouth has volume gradings and comes with an airlock. Feels a little higher quality
November 1, 2020
1 month ago
Works great
Used once and worked as expected. Docked 1 star as the black o- ring that fits in the lid was a bit finicky and fell into the fermenter a couple times when tightening. Luckily only when sanitizer was in there but I was a little nervous when opening to add dry hops that it would fall out. It seemed to be more secure at this time so it stayed in.

Otherwise works great, the smooth walls give it a leg up on the big mouth as cleaning is easier
October 21, 2020
2 months ago
Really like it
The feature I like is the smooth sides. My previous plastic fermentor had some textured areas which were hard to get clean from the hardened krausen. I also like the spigot, which I did not have before. It simplifies transfers. The only negative is the size of the cap. I wish it was an inch wider, to allow my are to reach the bottom.
October 5, 2020
2 months ago
Lightweight, but sturdy. Very reasonable cost. Large cap for easy access. Spigot is cheaply made.
Both spigots I have used leaked out at the spout.
Also, securing the spigot to the Fermonster took a couple of tries to solve leaking from the fermenter port. I would buy this product again and pay extra for an improved spigot.
October 3, 2020
2 months ago
Easier to clean than my glass carboys and much lighter.
September 28, 2020
2 months ago
Good fermenter for the price
Only used once and satisfied overall.
should come with instructions for spigot assembly. I had gasket on the inside but had a leak so switched to outside and worked better. Also wasn’t sure which direction to install tapered gasket.
Fermenter seemed to seal nicely with lid gasket placed correctly.
Volume markings very hard to see and should be on two sides instead of just one side.
Nice and lightweight compared to glass carboy.
August 22, 2020
4 months ago
Nice Upgrade from my bucket
I wanted to upgrade my bucket fermenter and after a lot of time researching, decided the Fermonster was the best choice. I used it for my last batch and couldn't be happier. The spigot is plenty high to prevent it from collecting trub. I also modified mine to do closed pressure transfers and it worked great. One of the better upgrades I've made to my brew equipment.
closed transfer
closed transfer
August 18, 2020
4 months ago
Great weight, okay quality.
Permanent dent in it upon arrival, but happy to have a light carboy.
July 19, 2020
6 months ago