Espresso Martini in a Mini Keg - Recipe and How to Guide
Recipe & How-To
Espresso Martini in a Mini Keg
Cold. Creamy. Nitro-Powered.
Prepare a full batch of Espresso Martini in advance, keep it thoroughly chilled and infuse it with pure nitrogen for a smooth texture, stable crema and nitro-style pour straight from your iKegger Mini Keg.
This guide uses a 2L batch for around 14 serves. Pure N₂ needs time to integrate: for the best result, prepare the keg several hours in advance — ideally the day before.
Espresso Martini Batch Recipe — 2L Keg
- 500ml Cold Brew Coffee Concentrate
- 500ml vodka
- 500ml Kahlúa
- 1 tray ice cubes
- 2 × 2g pure nitrogen bulbs
Pure N₂ Setup
Pure nitrogen takes longer to integrate than N₂O. Keep the keg cold under pressure for several hours — ideally prepare it the day before.
45 PSI
Infuse
Shake
Mix gas & cocktail
Several hours
Rest cold
20–25 PSI
Serve
Mix, infuse & serve
Method
1
Chill & Fill
Chill the ingredients and Mini Keg thoroughly. Add the Cold Brew, vodka, Kahlúa and ice, leaving enough free space inside the keg for the nitrogen.
2
Connect the System
Attach the iKegger 2.0 Tap System and Multigas Mini Regulator. Make sure the regulator is fully turned down before inserting the gas bulb.
3
Infuse with Pure N₂
Insert one 2g pure nitrogen bulb and gradually increase the pressure to around 45 PSI. Shake the keg firmly to increase contact between the gas and cocktail.
4
Rest Cold
Keep the keg cold and under pressure for several hours. For the finest texture, stable crema and strongest nitro cascade, prepare the Espresso Martini the day before serving.
5
Serve at 20–25 PSI
A second 2g nitrogen bulb may be required if the first was consumed during pressurisation and infusion. Press the tap gently and allow the crema and nitro cascade to settle in the glass before serving.
Important:
Always turn the regulator fully down before fitting or removing
a gas bulb and before connecting or disconnecting the regulator.
Need more detail on N₂, N₂O or serving pressure?
Open the iKegger Gas & Serving Guide →
Your Espresso Martini setup
What You Need
Use an iKegger Mini Keg with the iKegger 2.0 Tap System and Multigas Mini Regulator, then infuse the chilled cocktail with pure nitrogen before serving.
Core Equipment
Pure N₂ or N₂O?
Pure N₂ takes more preparation time, but produces the finer texture, more stable head and more defined nitro cascade.
N₂O is the faster option and produces a denser, creamier foam more quickly.
Need the faster option? Mosa N₂O Cream Chargers are also compatible with the iKegger 2.0 Multigas Mini Regulator.
Espresso Martini on tap
Mix once.
Pour all evening.
The coordinated package includes the keg system, nitrogen and Cold Brew base.
View the package
