Glass Carboy 1 Gallon



The Glass Carboy 1 Gallon is a unique fermenter designed for home brewers. Say goodbye to fermenting in plastic bottles or pickle jars with loose red plastic lids that don’t seal properly. This glass carboy provides a perfect oxygen barrier, preventing oxidation and mold formation. Here’s why it’s a must-have:

(14 customer reviews)

Key Features:

  1. Convenient sizes of 2.7 Liters and 5.4 Liters to choose from
  2. Tapering Body for Easy Grip:
    • The Matka/Ghadha-like tapering body makes it easy to lift and carry.
    • Unlike cylindrical bottle/jar designs, it won’t slip when lifted with wet, slippery hands.
  3. Wide Mouth for Easy Cleaning:
    • Cleaning between batches is a breeze with the wide-mouth design.
    • No more struggling with traditional glass carboys or Bisleri water cans.
  4. Transparent Glass:
    • Unlike glazed pottery, this glass carboy allows you to witness bubbling and fermentation changes in real-time.
    • Cover it with an old T-shirt or cardboard to prevent UV sunlight spoilage.
  5. Built-in Airlock Design:
    • The lid rests on a built-in channel, creating a perfect barrier against oxygen.
    • Prevents oxidation during anaerobic fermentation (ideal for wine, beer, probiotics, kimchi, and pickles).
  6. Reinforced Glass Base:
    • Ensures durability and a long life for your brewing adventures.
    • Ornate design ideal for decorating fridge top or lunch table.
  7. Versatile for almost every fermentation
    • These jars can be used for making Wine, Beer, Seltzer and alcoholic preparations
    • They can be used for Lacto fermented vegetables, kimchi saurkraut and probiotic fermentation
    • They can be used for kombucha and fermentation for improving gut biome.


  1. The gallon used here is Imperial/British Gallon and not the smaller American Gallon.
  2. Additional 10% discount on purchasing more than 5 carboys together.


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One of the biggest advantage of a transparent plastic carboy fermenter is that is allows for a very accurate beer and wine quantity reading.

Fermzilla comes with a water level sticker as well. The sticker will have a read marking for the seam level. All you need to do is to align the two and stick it.

Fermzilla Water level strip application. How to.
Fermzilla Water level strip application. How to.
Watch this video on YouTube

If you are using a fermenter without this water level sticker, then you will have to calibrate it the old school way.

  • Step 1: Take the empty fermenter weight and tare it to zero.
  • Step 2: Add 1 kg or 1 Liter of water.
  • Step 3: Mark that level as 1 Liter
  • Step 4: Add another kg to get the 2 liter marking.
  • Step 5: Repeat till the fermenter is filled.

It is very important to have right water level marking in a home brew fermenter. Most recipes will call for a specific ratio of wine and beer additives. If you don’t know how much liquid is there, chances are that you will add too much or too little of spices. This will lead to imbalance of flavors, colors and aromas. Also good record keeping is the key to be able to successfully scale from a small home brewing to pilot recipe research to running your own microbrewery.

Carboy is a Persian word qarābah (قرابه) pronounced Karāvah. In Arabic, it is also called qarrāba, meaning “big jug.” In a way, they are similar to roman amphora, Indian Terracotta Surahi (सुराही), and Fermentation Vats used for storing and transporting precious liquids.

glass carboy wicker basket demijohn
glass carboy wicker basket demijohn

Demijohn on the other hand originally referred to the wicker basket case that was used to pack the glass bottles (carboy). It is believed the word originated in 17th Century France and was originally Dame Jane.

Glass Fermenters are notorious when it comes to brewing accidents. During aging we often store wine and beer in carboy for extended periods. If the airlock is blocked, there is a chance that the pressure gets build up. The problem with glass is that when it burst, its produces a lot of sharp shards which can cause accidents. However, Arishtam’s carboys are shaped like fermentation crocks. Hence they have an in-build airlock which prevents blockage or pressure built up. Hence they will not explode.

Safety tips for Glass Carboy

  1. Always check the airlock for blockage. The yeast or krausen can often overflow. When it does it will block the airlock.
  2. Keep a foam cushion or a yoga mat as a base for your glass bottles. If the glass bottle is placed on the floor improperly, it will crack.
  3. Never hold your filled glass carboy with the neck. Glass has a better compression strength then tensile strength. Support your bottle by keeping a hand at the bottom of the fermenter.
  4. an LPG cylinder weighs about 20-25 kg but your glass carboy will weigh ~30kg (10kg for the glass and 20kg for 5 gallons of beer or wine). So don’t be shy in asking for help when transporting or shifting your fragile bottles.

Wet glass can be very slippery. Hence we recommend taking special care for them.

  1. You can use the carboy washer. It sprays a let which allows you to quickly clean the carboy. Also, the brass pipe is very small. So it allows the water to drain out once it has cleaned the carboy.
  2. If you still see and stubborn stains in your glass (like the ring at the bottom of the teacup) then I would recommend using a strong acid or lye. Glass is inert so you can use strong chemicals to clean it.
  3. If there are deposits that need scrubbing then make a mixture of dry rice and detergent. One liter of this mixture can be poured in the carboy and you can give it a nice shake. The rice acts as an abrasive which attacks the deposits.
  4. Finally use a rinse-free brewing sanitizer to disinfect all surfaces.

Glass is the preferred container for wine or alcohol. It does not leach, it does not oxidize, its smooth surface does not shelter microbes.

Bulk aging in larger carboys/fermenters is preferred over bulk aging in bottles for following reasons:

  1. Sedimentation: The more the wine ages, the more sediment it collects. by bulk aging you get a second chance to remove it and get clear bottles that can be gifted.
  2. Infusion: Most Indians love to infuse spices, botanicals, herbs or oak chips in their wine. Bulk gaining in big bottles makes calculations easier. Also it is practical to remove the spices when the right level of spices is achieved.
  3. Oxidation: Small bottles have larger head space per unit volume. Bigger bottles one can fill to the brim and be secure.
  4. Convinience: It helps procastinate the effort to bottle up the wine till its ready for consumption.
  5. Space: Larger the bottle, lesser space it takes

A 2.6 Liter carboy has a dimensions of 15.5 X 15.5 x 23cm

A 5.2 Liter carboy has a dimensions of 19cm X 19cm X 28cm

However glass bottles are blown and have some bottle to bottle variations in dimensions.

Arishtam stocks water sealed fermentation crock. In this traditional design, there is a circular moat at the lid. One needs to fill it with water and put a glass bowl on it.

The anaerobic fermentation will produce the CO2 gases. These gases pass through the water moat (like they do in a regular airlock).

Another advantage of fermentation crock is that since the lid is large, the chances of overflowing of wine is lesser. Also if it does, the grape pulp comfortably sits in the lid and does not make a mess.

With the regular airlocks/bubblers one needs to be worried about the airlock being choked. This could be because the pulp from the wine blocks it from inside or because insects/dirt from outside falls in the small airlock bubbler. The large moat design of the lid prevents these kind of blockages.

Hence fermentation crocks are the easiest and most carefree design fermenters in the market. You can use them for primary ferments as well as bulk aging (kimchi is traditionally stored for 3 years in them)

If you still have a question, write in the comments section and we will get back to you.

14 reviews for Glass Carboy 1 Gallon

Based on 14 reviews
5 star
4 star
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Customer Images

Image #1 from Manpreet
Image #1 from Manpreet


Veey strong and best quality fermenter, thank you arishtm

Image #1 from Manpreet
1-5 of 14 reviews
  1. One of the best fermenters I have used so far! It is slightly expensive but sturdy, easy to use & clean and transparent so that you enjoy watching your fermentation. Also love to listen the euphony during fermentation.
    Strongly recommended for wine and other non- alcoholic fermentation.
    Note: As the bowl on the neck of carboy is submerged in water to act as airlock and water remains open, the water gradually evaporates so we have to be little cautious to add little water in the airlock.The weakening or no fermentation sound is the alarm for time to add water in the airlock during secondary fermentation.
    Replacement policy: It is unmatched and praiseworthy. Recently ordered a second carboy. When opened, i found it broken. My call was immediately attended and I was assured for replacement. The second time too, the parcel had broken carboy. Since it was opened before the delivery agent. I did not receive the parcel and informed Aristham owner of the same. To my chagrin, the owner Mr. Ankur Agarwal was kind enough to call at my home to not only deliver me a new carboy but also acted as a wine connoisseur to taste my homemade wines. Mr. Agarwal’s feedback was encouraging and he enlightened me about the fermentation process too for which I am grateful to him.

    • thank you for the kind words

  2. It is useful thing in making beer and wine. Though i forgot to buy full 1 gallon and brought only 0.5 gallon.

    • maybe it will prompt you to test out different herbs spices and variations. Its easier to experiment with a smaller batch than a larger one

  3. Best product thank you Arishtam

    • thank you sir

  4. Recd product in good condition. Value for Money.

    • Thanks Anjali

  5. Best quality products with affordable price.

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