The 4L Mini Keg | iKegger is a slim stainless steel keg for filling, naturally conditioning, force carbonating, storing and dispensing homebrewed beer. Its 4L capacity is ideal for small homebrew batches, split batches, speciality beers and larger test brews while still fitting into many fridge doors. Beer can be transferred directly from the fermenter into the cleaned and sanitised keg. It can also be used for cider, soda water and filtered cocktails such as Aperol Spritz, Hugo, Gin and Tonic or Negroni.
Compact by design
4L – a practical homebrew size
The 3.78L fill line is well suited to one-gallon recipes, split batches and beers that you want to condition or serve separately.
Slim and fridge-friendly
The narrow 13.5 cm diameter fits into many fridge doors, while the integrated handles make the keg easy to carry.
From fermenter to tap
Fill and condition your homebrew.
Transfer beer directly from the fermenter into the cleaned and sanitised keg. Add the correct amount of priming sugar to naturally condition it without filling several individual bottles.
Force carbonate and dispense.
Add the Double Ball Lock Spear, a compatible regulator and a CO₂ source to carbonate your beer and control the dispensing pressure.
Compact, reusable and portable.
The pressure-rated 304 stainless steel keg is easy to clean and resistant to breakage. Add the optional 4L Keg Insulation Sleeve to help keep pre-chilled beer cold outside the fridge.
Choose your variant
Every option includes one silver 4L Mini Keg. Choose whether you need the keg only or the keg with a stainless steel Double Ball Lock Spear. Both options can be selected with or without the matching insulation sleeve.
⚠ Tap, regulator and gas are not included:
The Double Ball Lock Spear option provides the gas and liquid ball lock posts required for a pressure-dispensing setup. A compatible tap, ball lock disconnects, regulator and gas source must be added separately.
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1 × Keg only
Includes: One silver 4L Mini Keg and screw cap.
Choose this option as an additional keg when you already own compatible iKegger tapping equipment. The keg cannot dispense under pressure with the screw cap alone. -
1 × Keg with Double Ball Lock Spear
Includes: One silver 4L Mini Keg and one stainless steel Double Ball Lock Spear with gas post, liquid post and pressure relief valve.
Choose this option for natural conditioning, force carbonation, closed transfers and use with compatible ball lock tapping equipment. For force carbonation and dispensing pressure, add the iKegger 2.0 Multi-Gas Mini Regulator with 16g threaded CO₂ cartridges. Alternatively, connect a threaded SodaStream CO₂ cylinder using the SodaStream Adapter and Remote Gas Line Set.
Insulation sleeve selection:
Both keg variants are available with or without the matching 4L Keg Insulation Sleeve. The sleeve helps keep pre-chilled beer cold and includes a carry strap for easier transport.
Not sure which iKegger setup is right for you?
View the iKegger Guide
Compare keg sizes, tapping systems, gas options and accessories in our complete Mini Keg Systems Guide.
Specifications
- Product:4L Mini Keg | iKegger
- Capacity:4 litres
- Fill line:3.78 litres
- Colour:Silver
- Material:304 stainless steel
- Construction:Single-wall
- Maximum pressure:5 bar / 72 psi
- Design:Integrated handles, stackable body
- Dimensions:Ø 13.5 × H 35 cm with screw cap
- Additional height:Double Ball Lock Spear +6 cm
- Configurations:Keg only or with Double Ball Lock Spear
- Insulation sleeve:Available with or without the matching sleeve
- Warranty:5 years
Please note: Clean and sanitise the keg before filling. Only use well-mixed and filtered liquids. Add fruit, herbs, seeds, ice and other solid ingredients directly to the glass, as they can block the dip tube, liquid post or tap.
Questions & Answers
What is included with each 4L Mini Keg variant?
The keg-only option includes one silver 4L Mini Keg and screw cap. The Double Ball Lock Spear option also includes a stainless steel spear with gas and liquid posts and a pressure relief valve. Both variants are available with or without the matching insulation sleeve.
Can I naturally condition and force carbonate homebrewed beer in the keg?
Yes. Transfer the beer into the cleaned and sanitised keg and add the correct amount of priming sugar for natural conditioning. Force carbonation requires the Double Ball Lock Spear, a compatible regulator and a CO₂ source.
What does the insulation sleeve do?
The sleeve helps keep pre-chilled beer cold outside the fridge and includes a carry strap for easier transport.
Customer Reviews
5.0 Based on 77 Reviews
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DN
04/11/2024
Daniel N.
GermanyGood system with excellent support
Good system with excellent support! The system is well thought out and the quality is really good. At the same time, it requires some experience to use. To make the start as easy as possible, the support from the iKegger team is really excellent! Highly commended!
AV
02/01/2022
Andreas V.
GermanyAll kegs in each sizes are fine!
Quick installation, easy to handle. Safe and smart. With the gas the beer tastes still fine.
SS
07/18/2021
Steve S.
FranceEasily transportable
Great quality kit and service from iKegger. I bought the 23L system and I love it. The 19L keg stays in the fridge and I use the 4l keg to take to BBQ’s etc. It fits nicely on the back of my electric bike! Highly recommended.
SS
05/24/2021
Stefan S.
GermanyBrauchte ein Spülfass
Nach dem Spunden, keggen, brauen usw gibt es immer wieder Schläuche zu reinigen. Da ich ein fauler Sack bin: pbw auf 76c, bissl Druck auf das Fass und los geht's.
SS
04/18/2021
Sam S.
United KingdomGreat bit of kit!
Perfect for a 1gal home brewer! Purchased with the remote gas line and soda stream adapter to save on gas bulbs!
