Brewing guide
How to Make Flash-Brewed Iced Coffee Coffee
Hot-brewed over ice in four minutes.
Demonstration content — review and verify before publishing.
- Difficulty
- Easy
- Brew time
- 4 minutes
- Coffee-to-water ratio
- 1:16, with 40% of the water as ice
- Grind size
- Medium-fine
- Water temperature
- 199–205 °F
Overview
Flash brewing means brewing hot directly onto ice. The ice becomes part of the recipe rather than diluting a finished cup.
You keep all the aromatics of a hot brew while locking them in instantly as the coffee chills.
What You Need
- Dripper and filter
- Scale
- Ice
- Carafe or sturdy glass
Step-by-Step Instructions
- 1
Weigh the ice
Put 4.6 oz of ice in the carafe — this counts toward your water total.
- 2
Brew onto it
Brew 0.7 oz of coffee with 6.7 oz of hot water by weight straight over the ice.
- 3
Swirl and serve
Swirl until the ice melts, then pour over fresh ice.
Common Mistakes
- Forgetting the ice counts as water
- Using too coarse a grind
How to Improve the Flavour
- Fruity light roasts shine here.
- Add a splash of milk only after tasting it black.
Equipment Recommendations
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Frequently Asked Questions
Is flash brew better than cold brew?+
It is different — brighter and more aromatic, but less sweet and heavier on acidity. Cold brew is smoother.
