Japanese Iced Coffee with coffee filter on a table.

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Every morning, the one thing I truly look forward to the most is the first sip of coffee. As Mr. JOC and I both enjoy coffee, we purchase and try different beans from local and independent coffee roasters, as well as coffee shops we visited when we travel.

As Cold Brew coffee got more popular in recent years, many coffee lovers seem to be more interested in how we make iced coffee in Japan, known as Japanese Iced Coffee. Today I’m sharing how the Japanese make iced coffee, which to us is “the best” way to enjoy coffee (until we find a better way).

What is Japanese Iced Coffee?

Japanese iced coffee is simply coffee brewed with hot water, directly onto ice. One-third of the liquid is in the form of ice and the other two-thirds in the form of pour-over.

What makes Japanese iced coffee different from just adding ice to hot coffee? As you pour the hot water over the coffee grounds, it extracts a wide range of tasty flavors and aromatics from the ground coffee. As it drops onto the ice cubes, the ice cubes instantly lock those flavors by flash-chilling at the same time diluting the concentrate.

Japanese Iced Coffee and coffee filter on the scale.

Taste of Japanese Ice Coffee

To really test out this method, we tested both cold brew and Japanese iced coffee with multiple coffee beans. For each side-by-side comparison, the first thing we noticed was that Japanese iced coffee has much more flavors and aromatics. The subtle hints of caramel, chocolate, berries, and other delicious flavors hidden in the coffee beans are more pronounced with the Japanese iced coffee method for the same exact beans.

When done well, the Japanese iced coffee will result in a more flavorful, brighter, and complex iced coffee. You can also produce different results with the same coffee by adjusting the pour rate and grind size.

Japanese Iced Coffee in glass cups.

Pros and Cons of Japanese Iced Coffee

P‍‍ros:

  • It makes cold coffee faster: it takes about 10 minutes including the time to boil water.
  • The flavors are more robust than a cold brew.

Cons:

  • It makes just one to two servings at a time.
  • A little more labor-intensive than a cold brew and more work to make a big batch the night before.
Japanese Iced Coffee in a glass cup.

Equipment You Will Need for Japanese Iced Coffee

If you are already making hot coffee with a dripper, you will not need to buy special gear.

Hario recently released a new line of Japanese coffee gear called AYA that I really love—it’s available now at JOC GOODS!

Japanese Iced Coffee in glass cups.

Coffee Beans that We Love

In conclusion, if you are a coffee lover and especially iced coffee, please give Japanese iced coffee a try. We recommend using delicate beans that are full of flavors. If you live in the bay area try the beans from Sightglass, Ritual, Four Barrel, or Blue Bottle.

Another bay area coffee roaster we highly recommend and offer truly extraordinary coffee beans is Helio Roast. It’s run by a former university professor named Kern Trembath. There are a few unique characteristics about Helio Roast:

  1. They use electric roaster powered by solar energy.
  2. They only roast the beans after you order them. You decide on the type of beans you want and roast level, and your coffee bean is handcrafted just for you.

There is nothing like freshly roasted coffee beans, the resulting coffee is simply excellent. Kern has generously offered all JOC readers 10% discount if you use the code “JUSTONECOOKBOOK” during checkout (we do not make any money from your order, we like to support small local businesses).

We’ve tried Sumatra Toba Batak, No Fear, and Sumatra Lintong Pak beans roasted at Full City+ level and they were amazing.

Helio Roast Coffee Beans and Coffee | www.justonecookbook.com

Lastly, if you travel to Salt Lake City, stop by and purchase some beans from John at the Salt Lake Roasting Co. John has an amazing selection of coffee beans from all over the world and we always stop by for some coffee and pastries when we go skiing in Utah. He also ships his delicious beans so you can purchase them online.

Cold Brew Coffee with ice cube in a glass.

If you missed my Cold Brew recipe, please read here.

Japanese Iced Coffee with coffee filter on a table.

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Japanese Iced Coffee

4.85 from 13 votes
Japanese Iced Coffee アイスコーヒー | Easy Japanese Recipes at JustOneCookbook.com
Treat yourself to a bright and smooth cup of Japanese Iced Coffee at home. This method releases an array of complex flavors into the coffee that‘s flash-chilled to lock in the aroma and taste. Enjoy it right away or refrigerate it overnight for a delicious beverage on the go.
Prep: 10 minutes
Total: 10 minutes

Ingredients 
 

Servings: 2
  • 30 g coffee beans (1 oz; weigh your beans; light to medium roast for a bright flavor)
  • 370 ml hot water (12.5 oz; plus more to rinse the filter; at 205ºF/96ºC)
  • 150 g ice (5.3 oz)

Instructions

  • Bring plenty of water to a boil in a drip kettle. Take it off the heat for 30–60 seconds and let it cool slightly to 205ºF (96ºC). In the meantime, set up the dripper.
    Nami's Tip: Avoid using boiling water at 212ºF (100ºC). It extracts bitter polyphenols and leads to over-extraction.
    Japanese Iced Coffee 1

To Set Up the Dripper

  • Set a coffee dripper on a mug or cup. Place a paper coffee filter inside and rinse it with some hot water from the kettle. Let the water drain, then dump it out.
    Japanese Iced Coffee 2
  • Grind 30 g coffee beans (1 oz) to a medium or medium-fine grind.
    Nami's Tip: I used the Drip setting on my coffee grinder. Use fresh beans for optimal flavor.
    Japanese Iced Coffee 3
  • Set a pour-over server or carafe on a digital kitchen scale. Turn it on and add 150 g ice (5.3 oz).
    Japanese Iced Coffee 4
  • Set the dripper on the server. Add the ground coffee to the dripper and level it. Press the Tare button to reset the scale to zero.
    Japanese Iced Coffee 5

To Bloom and Pour

  • The bloom: Start a timer. Slowly pour 60 ml (2 oz) hot water at 205ºF (96ºC) in a circular pattern over the grounds, fully wetting them. Let the grounds swell and degas until the 0:40 mark.
    The pour: Keep the timer running. Pour another 60 ml hot water over the grounds. Let the liquid drip until the 1:20 mark.
    Slowly and steadily pour 250 ml (8.5 oz) hot water in a spiral pattern over the grounds, avoiding the filter paper. Stop when the water level is ½-inch (1.3 cm) above the grounds. Let it drip a bit, then repeat. Finish the brew completely by the 4:00–5:00 mark.
    Japanese Iced Coffee 6

To Serve

  • Serve the coffee in glasses over additional ice.
    Japanese Iced Coffee 7

To Store

  • Place leftovers in an airtight container and store in the refrigerator for up to 1 day. Any longer and the coffee will lose freshness and aroma.

Notes

Ingredients
Coffee beans: It’s best to weigh your beans. 1 Tbsp is roughly 5 grams, but it can vary depending on the beans.

Nutrition

Sodium: 6mg, Calcium: 27mg

The nutrition facts shown are generated by an online calculator and are estimates only. Please consult a professional nutritionist for specific dietary needs.

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