The Whiskey Sour is a crowd-pleaser that translates perfectly to keg service — bright citrus, balanced whiskey, and the option to add egg white foam on pour for a proper bar presentation.
Whiskey 5-Gal Keg
Prep 5 m
Total 10 m
Yield 5-Gal Keg (~106 servings)
Gas N₂
One of the most versatile batching cocktails. Works as a standard sour, a foam-topped premium serve, or a base for seasonal variations. Consistent quality at any volume.
Batch Method
- Add all spirits and concentrates to a clean 5-gallon Cornelius keg.
- Add remaining ingredients and top with cold filtered water to 5-gallon volume.
- Seal the keg and shake vigorously side to side for 2 full minutes.
- Pressurize with N₂ (nitrogen). See panel below.
- Refrigerate minimum 12 hours before first service.
- Serve ~6 oz over ice in appropriate glassware. Garnish as desired.
- Reshake twice daily to re-integrate settled ingredients.
Pro move: For foam on tap, add aquafaba (chickpea liquid) to the batch — 4 oz per 5 gallons. It creates foam on pour without the food safety concerns of raw egg white at scale.
🍺 N₂ Pressurization — Non-Carbonated Cocktail
- Seal the keg and shake vigorously side to side for 2 full minutes.
- Connect gray/silver Cornelius "gas in" connector to GAS IN plug on keg lid.
- Set N₂ regulator to 12–15 psi.
- Pull up pressure release ring 3 times quickly to cycle gas through keg.
- Test flow. Reduce to 10–12 psi if pouring too fast.
- Reshake twice daily before service to re-integrate all ingredients.
Full keg gas instructions: Keg Gas Instructions →
Top Hat Provisions
Make Better Drinks.
🥂N₂ pressurized — non-carbonated, food-safe
⚡Batch-ready for high-volume draft service
✨90-day shelf life · 106 servings per keg