It is officially cold brew season, and our summer blend, Natsu Ake, has arrived to the rescue. To celebrate the season (as much as possible), we updated our easy cold brew recipe for everyone to try at home.

Kurasu's New Cold Brew Recipe: 2026 edition

You'll need:

※This recipe makes about 500ml (around 3 servings)

• 50g of coffee beans, or 1 Kurasu Cold Brew Bag
• A container such as Tupperware, a carafe, or a pitcher
  *If you are using bottles, make sure they fit in your fridge. 
• Mesh bag for cold brew (can be substituted with a tea bag)
  *Skip this if you are using Kurasu Cold Brew Bag
• 600ml of water
  

Step by Step Guide

1. Grind 50g of coffee beans and pack it in a mesh bag. 
   *For the grind size we recommend grinding slightly finer than your hot filter grind- about as fine as your iced filter grind. 
   *On a Fellow Ode Grinder Gen2's setting, that would be around #7.0〜#8.0.
   *Skip this if you are using Kurasu Cold Brew Bag.
2. Put the bag you prepared in Step 1 or a Kurasu Cold Brew Bag into a container of choice, and pour 600ml of water. 
3. Press the bag gently about three times, to make sure that the coffee is evenly saturated with water. 
4. Leave it in the fridge for about 15 hours. (For example, make it at 5pm and it'll be ready by 8am the next morning.)
5. Remove the bag, but do not squeeze the bag. Instead, lift and hold it to let the coffee drain naturally. Store the cold brew in the fridge. 

Hints & Tips

Changing the amount of coffee or water

As long as you stick to the bean-to-water ratio (1:12), you can make different amounts of delicious cold brew with no problem. 

• Example 1: Coffee 25g: Water 300ml
• Example 2: Coffee 75g: Water 900ml

Adjusting the flavor

If your cold brew turns out too intense, try grinding a little coarser next time- go finer if it's too weak. 

The key is to stick to the same ratio and the immersion time and change only one variable at a time- that gives you better control over your brew.

What each component in the recipe does to the final cup

How your cold brew turns out is dictated by three things. If you find yourself wanting to make adjustment to your creation, check the following 3 areas and adjust to your liking. 

Grind Size

Grind size has the biggest impact on the cup's flavor and impression.

Bean to Water Ratio

Bean to water ratio plays a role in the final strength.

Immersion Time

The length of time the coffee grounds are immersed in water affects the extraction progress. 

Make Your Summer Special with Natsu Ake Cold Brew

Every year, we design our summer blend Natsu Ake from scratch, but always with cold brew in mind. 

For this year's blend, Natsu Ake 2026, we built the blend around floral notes, red berries and mandarines, taste of nectarines and chocolate-like sweetness, followed by a long, lingering finish.

Enjoy your summer with a delicious cold brew made at home using Natsu Ake.