Better Bottle Carboy - 3 gal.

Better Bottle Carboy - 3 gal.

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Better Bottle is a name known in the home beer and winemaking for their quality products.  Plastic PET carboy fermenters are much safer than glass carboys; not only because they weigh less, but they will also not explode into shrapnel if dropped!  These are made from Virgin PET and manufactured in such a way that the molecules are tightly packed, and less susceptible to oxygen transfer, resulting in better wine and beer!

Aside from it's advantages over glass carboy fermentors, the Better Bottle is relatively impermeable to oxygen.  This means that for your wine's or beer destined for aging, this is a perfect choice for an aging vessel!  When using the Better Bottle and it's accessories, the transfer rate of oxygen is lower than that suggested for Micro-oxygenation, and insignificant when compared to the amount of oxygen transferred through other bottles and their stoppers.


  • Uses a #10 stopper or a 5 Gallon Carboy Hood w/ white caps.
  • Weight: 1.5 lbs
  • Temperature Tolerance: 140° F
  • Height: 19.5 inches
  • Length/Width (Square Bottle): 7.5 inches
  • Completely taste and odor free
Item # FE316
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 2 LBS
Community Q&A

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Why did you choose this?
MoreFlavor Store
It is lightweight when filled. Easy to put on my water tank.
Susan F on Mar 8, 2022
JAMES on Jun 30, 2021
It is lightweight when filled. Easy to put on my water tank.
Susan F on Mar 8, 2022
space in refrigerator
Lori W on Mar 1, 2022
JAMES on Jun 30, 2021
These fit beautifully on the side shelf of my Fermenting Fridge
Mangy Badger on Apr 29, 2021
A friend of mine has one
Karen L on Apr 14, 2021
Used before
Clifford A on Oct 13, 2020
New carboy for brett and wild beers
Ethan C on Sep 15, 2020
2 of these fit well in a smaller sized min fridge.
Jeffrey L on Aug 19, 2020
The square ones are super convenient for storing
Michael J W on May 26, 2020
need for small batches
John E T on May 12, 2020
The small footprint should allow me to fit two of these in my small chest freezer.
JP K on May 12, 2020
For winter time small batch indoor brewing.
Joseph Dauria on Jan 23, 2020
PET has permeability similar to an oak barrel
Kevin Daniel L on Nov 12, 2019
More substantial than other comparable PET carboys
Richard S on Jun 22, 2019
Pamela Kirstine on Feb 5, 2019
really great product....easy to clean, doesn't absorb orders
LLH on Dec 6, 2018
Better Bottle is a well designed PET carboy.
Marshall C on Jul 25, 2018
to split sour beer batches
billy c on Jun 26, 2018
Want to do smaller batches - this had good reviews
William K on May 5, 2018
Small batch Brett secondary!
Michael Hoccom on Feb 28, 2018
Its square and 3 gallon.
Clarissa M on Feb 7, 2018
I wanted to brew in smaller batches
Brendan h on Feb 3, 2018
Using these for side by side brewing comparisons
Jeff R on Jan 27, 2018
I just transitioned to an apartment and want to try my hand at new beers, I figure 3 gallon batches would be better to start with.
Chris G on Jan 19, 2018
space in refrigerator
Lori W on Mar 1, 2022
These fit beautifully on the side shelf of my Fermenting Fridge
Mangy Badger on Apr 29, 2021

5.0 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Very nice.
They are square so storage is much easier. Do yourself a favor and get the #10 breathable silicone bung.
October 12, 2021
7 months ago
Rated 5 out of 5
great bottles
I always prefer buying the better bottle brand.Very sturdy bottle and price is not too bad for the quality of product received.
July 13, 2021
10 months ago
Rated 5 out of 5
Fits beautifully on the side shelf of my Kitchen Aid Keezer
You know that shelf (offset) that exists in every 7.0 cu. ft. Freezer? Two of these fit beautifully on that shelf/offset. I installed a 2X4 around the top edge of my freezer to accommodate airlocks as this is used just for fermenting.
May 8, 2021
1 year ago
Rated 5 out of 5
great carboys i had a 2 pack. super value
September 9, 2020
1 year ago
Rated 5 out of 5
LOVE the 3 Gallon Better Bottles!!
I bought four of the 3 gallon better bottles to replace the 5 gallon bottles we have been using to store our purified water. If its good enough for wine/beer - it is good enough for my drinking water! The bottles are very solid and the size makes them much easier to handle than the 5 gallon bottles. I'm very happy with the quality of the product...I'll be ordering four more next month.
P.s. I received the bottles much faster than was expected - within days of ordering.
Thank you!!
August 19, 2020
1 year ago
Rated 5 out of 5
Perfect for experimental batches
I like to use these 3 gal carboys to split 5 gal batches to experiment with different secondary additions. I also use them to brew smaller 2.5 gal batches to go in my 2.5 gal kegs. Works great.
May 20, 2015
Rated 5 out of 5
Can't have too many
I love these little guys. They are great for splitting batches and ending up with about a case of beer. The tall square shape makes it easy to fit many in a small area.
May 11, 2015
Rated 5 out of 5
works great
Works perfect for splitting a 5 gallon batch to try different yeast or fermentation variables. Also works great if you want to add fruit or other ingredients to part of a batch in secondary. Its dimensions are also very convenient.
May 6, 2015
Rated 5 out of 5
Perfect for 3 gallons
When I scaled back to 3 gallon batches this was the perfect fermentation vessel. Easy to clean and handle. The tops accept most airlocks and blowoff tubes.
May 5, 2015
Rated 5 out of 5
Outstanding product
I love Better bottles more than glass or the other plastic bottles I've tried. Why better than glass? Lighter and no fear of the sucker breaking at any point; you can use the top carrier with it completely full (even the 6 gallon). Why better than the other plastics? The shape of the top is more conical than others I've tried and gas flows up it perfectly. And the sort of punt shape at the bottom is perfect to put a softball in and shake around for degassing. I also adore the no water needed air lock from the same company.
May 5, 2015