HOW TO BREW: COLD BREW

HOW TO BREW | COLD BREW COFFEE  

This is a recipe for cold brew coffee using the HARIO FILTER IN BOTTLE, which is used at THE WORD COFFEE. (For a flash-chilled iced coffee recipe, click here)

 

 

What you'll need

・Purified water or soft mineral water

・HARIO Filter-in Bottle (for cold brew coffee)

・Coffee scale or kitchen scale

・Stirring spoon

 

 Recipe

 

Ratio: Coffee grounds / Water = 1:13 to 1:15

Grind size: Medium (for light roast) to Medium-coarse (for dark roast)

 

・Set the coffee grounds in the filter. (This time, 80g of grounds)

・Pour 1,000~1,200ml of room temperature water into the bottle with the filter removed.

・Place the filter containing the grounds into the bottle with water, and stir until all the grounds are submerged in water.

・After 10-12 hours at room temperature, remove the filter and it's done.

 

-Updated 2025/7.4

The key is to extract at room temperature. Extracting at room temperature for a long time fully brings out the aromas and flavors that cannot be extracted at low temperatures.

Adjust the grind size based on the roast level, with a medium grind as the standard. If you experience a powdery or gritty taste, adjust the grind size to be coarser to reduce fine particles, or filter the coffee through a dripper (paper filter) when transferring it to another container after extraction for a clearer finish.

For light roasts, adding a small amount (0.5-1g per 100ml) of unrefined cane sugar is recommended as it further enhances the flavor, mellows the acidity, and adds richness. Add the sugar to the pot before pouring in the water, then stir after adding the water. Since room temperature water is used, it will dissolve thoroughly.

After extraction, store in the refrigerator and consume within 2-3 days.