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Small Batch Quad Core Fermenting Kit


SKU# 41098

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OK, so we've got 12 bottles that'll be ready next week, but there's that party the week after that, and then the monthly poker night - did we get them a gift for their birthday? Once you start brewing, the world finds out and conspires to "sample" your beer away from you. Keep 'em coming back, get a small batch Quad Core Kit.

Also the perfect addition to our Master Vintner® Small Batch Wine Starter Kit. Don't wait to start another batch of homemade wine.

Includes 4 of each:

  • One Gallon Fermentors
  • FermograF - Adhesive LCD Thermometer
  • Screw Caps with Hole
  • Blowoff Tubing
  • Three-piece Airlocks

Availability: In stock

Small Batch Quad Core Kit

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  • Small Batch Quad Core Kit
  • Small Batch Quad Core Kit
Product Details
You can handle the increased capacity, but even better, you can try new things, keep it fresh. Black IPA, German Blonde, Irish Red, and Caribou Slobber, all at once? Not a problem for the Quad Core.

Works for beer and wine. See our 1 Gallon Small Batch Starter Kit or the Master Vintner® Small Batch Wine Starter Kit.

Need a new Primary Fermentor for your 1 gallon batches? See the Small Batch Big Beers Booster Pack.
Additional Information
Support Documents:No
4.7 / 5.0
39 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Works very well an is just right for small batches
March 10, 2018
2 months ago
Got exactly what I expected, and worked well for small batches as well as flavorings etc in secondary
User submitted image
Added Feb 1, 2018
February 1, 2018
3 months ago
The quad core kit is Awsome. I can have several small batches running at once instead of waiting for each one to be done. The thermometers are an awsome idea too. Easily keep your temp range just right.
January 23, 2018
4 months ago
Lacking clear directions.
All of the supplies are nice, and it seems like there is everything a person would need to make wine. I really wanted to love this kit.

The directions are really hard to understand and vague. The yeast chart has directions and the starter book has conflicting instructions. Unless you've made wine before, the book is not very helpful. Found some directions on the internet, but it all varies. I got this for a gift for my dad, and it's left us confused.

If someone could contact me with clear directions, I would appreciate it!
January 5, 2018
4 months ago
Great , easy to clean great for many different reciepies
Thinking about reordering
November 6, 2017
over 2 years ago
I'd buy it again great price
Exactly that 4 jugs and Airlocks doing it's job making beer love it
September 28, 2017
7 months ago
Awesome ! I use this kit for all my test batches when I'm trying new recipes. Legit has everything needed. What more could you ask for ?
August 8, 2017
9 months ago
Good Results So Far
I just finished bottling my first batch of Chardonnay. I haven't actually tasted it yet but wish to give it a little time to age. My initial 5 star rating is based on my processing experience through bottling. Obviously, the very important final step of tasting it will require a follow up final review.
The process went well. It takes some time and work so patience is needed. It's not like mixing cool-aid. The instructions were very good for the most part. The earlier complaints about a thin walled (breakable) big mouth bubbler and metal stirrer have evidently been addressed since mine has a thick sturdy wall and came with a plastic stirrer. I separately purchased a better corker for bottling, which I think helped. I also recommend getting a suitable thermometer since the provided thermal stick-ons will not mount flat on the bubbler due to the surface ribs. I found manual siphoning to be necessary since my siphon pump did not work well. Northern Brewer quickly sent me a replacement but I ended up not even using it, no big deal. I have started a 2nd batch (pino noir) and it was easier than the first batch, having done it once, already. If this wine tastes OK, I will definitely make more. It's a good hobby so far and after the initial purchases, pretty economical.
I used 375ML (half size) bottles since I don't generally want a full 750ML bottle at a time. I bought corks of 8x1 3/4 size which worked well with these bottles. I got ten full (half size) bottles from the first batch. The alcohol content looks to be about 12%, based on the change in hydrometer readings. I am including a photo so you can see the color and clarity of the Chardonnay. I made and printed labels and attached them using spray adhesive. Hopefully these will make good gifts for friends.
Overall, this has been a good experience. I don't have the space (or desire) to tackle a large 5 gallon fermentation effort and this small batch kit is proving to be a very good alternative.
Dr. John Turner
First Batch Bottles - Chardonnay
First Batch Bottles - Chardonnay
July 5, 2017
11 months ago
Good Price for Starting Out
I'm new to the brewing game and am using these to make mead. This set of gallon carboys has been great in allowing me to get a couple of batches going simultaneously, while (like other reviewers have said) not having to invest too much in any one batch. The ability to make a traditional mead in one set and a melomel in another is nice!
June 6, 2017
11 months ago
Perfect for 1 gallon kits
Have done a few kits so far, these are nice but as others have said - I would recommend getting rubber bungs in addition to the plastic caps it comes with. However they have worked fine for me so far.
May 27, 2017
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 14 questions Browse 14 questions and 25 answers
I attempted to use these vessels for primary fermentation and ran into some issues. I used gallon jugs of water from the store to help measure the 1 gallon level of the jugs and the 1 gallon line appears to be only about 2 inches from the top (essentially in the neck). As a result, little to no head space led to a fairly explosive krausen that ran the length of the blowoff tube leaving a bit of a mess and losing some beer. Is everyone else having the same issue? The simple solution seems to be to not fill to the gallon mark but that seems like a dumb idea as you get less product at the end. Or that these jugs are only good for secondary fermentation (which may be what everyone is using these for). Any insight would be greatly appreciated.
T I on Jun 13, 2016
BEST ANSWER: I think they are better used as secondary vessels, for the reason you cite. If you have a full gallon in them, it will be so full that even a little bit of krausen foam will push up and out of the airlock, making a mess, and losing some of the batch of beer. I would suggest instead the Little Big Mouth Bubbler or a 2 gallon plastic pail be used for the primary, and the gallon jug be used for the secondary. -Mike W, Northern Brewer
What size tubing is needed? I would prefer to have enough blow off hoses for all of them rather than just one.
shannon s. on Mar 9, 2016
BEST ANSWER: Each of the jugs come with their own section of blow off tubing and airlock. If using these as secondary fermentation, there should be NO issue with even needing the tubing.
One suggestion is to purchase rubber stoppers with a hole for the airlock. The caps provided (which the air locks fit into) are less than desirable, but will work. That would be the only suggestion / change that I would have made for my order.
Are 1.5 or 2g what's it size .
M A on Jan 30, 2016

These jugs are one gallon each.


how big is the bottle opening?
I S on Dec 3, 2015
BEST ANSWER: Its a standard growler lid size, so 1.5" I believe.
They sent me #6 rubber bungs. Hope that helps
Are these plastic or glass carboys?
D P on Sep 30, 2015
BEST ANSWER: The jugs in the Quad Core kit are glass.
Can you bottle condition with these?
A shopper on May 11, 2017
BEST ANSWER: Mine are put up from a recent move, but I don't think they came with a cap that seals. If they do I would be worried about the resulting mess in the event of a bottle bursting.
I am curious how far to push the airlocks into the caps. I gave a gentle push and they had some wiggle and it seems like air will still be able to escape. I pushed pretty hard and they are solidly in the caps now (probably a little over half of the stem is in the headspace of the fermentor), but I am concerned about cracking the caps down the road. It looks like cracking has been an issue for some people. Is it common to need to replace the caps with rubber bungs? And is a little wiggle ok or is it better to push them in firmly?
M E on Jan 21, 2016
BEST ANSWER: The airlock should not be forced into the cap. A little wiggle room is okay, but be aware that this might reduce the potential for observable airlock activity. This too is okay, since minor gas exchange like this will not negatively impact your cider. I would err on the side of not forcing the airlock into the cap and potentially breaking it.
Can these be used for making hard cider? What else would I need to buy to set up for making hard cider?
J T on Oct 5, 2015
BEST ANSWER: These fermentors work perfect for making hard cider! Not much else is absolutely required - you need mini siphon tools to transfer into and out of the jugs safely

and probably a capper for bottling the cider in beer bottles

if you want it carbonated. Take a look at out cider starter kit for other potentially useful tools you may want then find a recipe that has step by step directions for maybe 100% apple juice

that is the easiest.
everyone is mentioning to use this as a secondary vessel. If this is a secondary fermentation vessel, what is the need of blow off tubing? Fermentation will be over with so why couldn't you just have an air lock?
Austin W on Jul 6, 2017
BEST ANSWER: Thank you for contacting Northern Brewer. You can use the one gallon glass jugs for either primary or secondary fermentation, however the one gallon glass jugs don't have a lot of room for active fermentation stage, which is why the blow off hose is used, but you could lose some of your precious brew. A lot of customers like the Little Big Mouth Bubbler for the primary fermentation because it is 1.75 gallons, so you will have the extra room for active fermentation. Cheers!
What is the diameter of the jugs? I'm trying to figure out if they'd fit in my fridge.
A shopper on Dec 20, 2016
BEST ANSWER: ~6.5" diameter. ~11.5" tall without an airlock
Is it possible to get a 1 gallon packaging volume out of this if you assume 10% loss to trub and sedimentation?
J O on Jun 27, 2016
BEST ANSWER: That sounds about right!
Hello - what are the dimensions of one of these fermentors? Trying to see how many will fit in my chest freezer.

A R on Dec 16, 2015
BEST ANSWER: These jugs are 11.25" tall and 6.5" wide
Can the glass handle boiling water temperature? I was thinking of putting the carboy in boiling water for 10 mins to sanitize it instead of using StarSan since it foams a lot (due to narrow opening) which has a slight sour taste. Not sure if it's a good idea.
Kunal S on Feb 5, 2017
Can the glass handle boiling water? I was thinking of putting the carboy in boiling water for 10 mins for sanitizing it instead of using StarSan to avoid the foam completely. Not sure if it's a wise idea.
A shopper on Feb 5, 2017

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