A flash chill mimics the pour-over method for hot coffee, but does so directly over ice, whether via a Chemex or another single-serving cup. By brewing with hot water as opposed to cold brewing, you are extracting all the flavors/nuances the coffee has to offer.
As a general rule for iced coffee we like to use a 1:14 brew ratio, meaning every gram of coffee is steeped with 14 grams of water.
Chemex Flash Chill recommendations
30G Coffee Medium Grind
300G water @ 200 Degrees Farenheight
120g Ice in your Chemex
- Place filter inside the brewer, pre-wet filter, then dispose of that excess water.
- Grind coffee on a medium setting (The same setting for your normal grind pour over method).
- Remove filter and add the ice (make sure to zero scale prior to adding ice.
- Add ground coffee to filter and place it on top of the Chemex filled with ice.
- Begin pouring the water over the grounds slowly, once you have covered the surface area 1-2 times with slight water elevation let it sit for 30 seconds (this is called the bloom).
- Continue pouring slowly, 30 grams at a time giving roughly 30 seconds in between to allow the extraction.
- When you reach 330G (end measurement) let the water settle and filter through.
- Stir or swirl the grounds in the filter to allow any remaining drain, remove from the Chemex and pour into a cup with fresh Ice cubes to slow the dilution.