If you’re a coffee enthusiast who’s always on the hunt for the perfect cup, get ready to dive into something extraordinary. Tetsu Kasuya, the World Brewers Cup Champion of 2016, has shared a recipe that he boldly claims to be a “God Recipe”—or perhaps more fittingly, a “Devil Recipe.” In a YouTube video, Tetsu unveiled this groundbreaking method for the Hario Switch, and it’s safe to say that the coffee world may never be the same.

TLDR?

Start with pourover mode: pour 60g of 93°C water, then pour 60g more at :30s to a total of 120g. Lower water temperature to 70°C, switch to immersion mode at 1:15, pour 70°C water to total of 280g. Switch back to flow mode at 1:45 and let the water drain by 3-minute mark.

Why Is This Recipe So Special?

Tetsu Kasuya is no stranger to innovative coffee brewing techniques. His famous 4:6 method has been a game-changer for many, but this new recipe takes simplicity and flavor to a whole new level. Tetsu himself admits that he was hesitant to share this recipe, as it’s not only incredibly easy but also astonishingly delicious. It’s so good, in fact, that even seasoned baristas were urging him to keep it under wraps.

The “Devil Recipe” Breakdown

Here’s how you can replicate Tetsu’s “Devil Recipe” using the Hario Switch:

What You Need:

• 20g of freshly roasted coffee beans (You can find some of the best beans right here at RoastAroma )
• 280g of hot water (around 93°C) (Use a temperature controller kettle like the Fellow EKG)
• Room temperature water
• Hario Switch (available on Amazon)
• A high-quality grinder like the Comandante or the Fellow Ode

Steps:

1. Grind the Coffee: Tetsu recommends a slightly finer grind than usual. For those using a Comandante grinder, start at around 20 clicks. Adjust based on taste—finer if the flavor is weak, coarser if too concentrated.
2. Pour the First Two Batches of Water: Keep the Hario Switch open, allowing the water to flow through naturally. Pour between 40g to 60g of water and allow the ground beans to bloom. Wait until the 30 second mark and then pour more water until the total weight of the poured water is 120g. This extraction phase is crucial for capturing the coffee’s best flavors.
3. Close the Switch and Lower the Temperature: After the initial pour, lower the water temperature to about 75°C by pouring in room temperature water. Use immersion brewing for the remainder, closing the switch and start pouring at 1:15 seconds until you reach 280g total. This step ensures that the unpleasant components typically extracted during the latter half of brewing are minimized.
4. Let it Drain: At around 1:45, open the switch and let the coffee drain out. Ideally, the brewing process should finish around the 3-minute mark. If it takes longer, don’t worry—you can always dilute the coffee with more water to adjust the concentration. Takes notes of how much water made it’s way out at the 3-minute mark, and adjust your grind accordingly for next time to ensure that all the water has drained by 3 minutes.
5. Enjoy the Perfect Cup: The result is a coffee with a rich, rounded mouthfeel, balanced sweetness, and minimal bitterness. It’s so simple yet profoundly satisfying that once you try it, you may never go back to your old methods.

Why You Should Try This Recipe

What makes this recipe so compelling is its simplicity. Even if you’re new to specialty coffee, this method is accessible and foolproof. It’s perfect for those who want to achieve barista-level coffee without the complexity of multiple pour-overs.

At RoastAroma, we believe that great coffee starts with great beans. To truly experience the magic of Tetsu’s “Devil Recipe,” you’ll need the freshest, highest-quality coffee beans. Explore our selection of freshly roasted beans here, and let the flavors come alive in your cup.

Final Thoughts

Tetsu Kasuya’s “Devil Recipe” for the Hario Switch is a revelation in the world of coffee brewing. It’s a testament to how a simple adjustment in technique can unlock new dimensions of flavor. Whether you’re a coffee novice or a seasoned enthusiast, this recipe is a must-try.

Ready to elevate your coffee game? Grab your Hario Switch, fresh RoastAroma beans, and give this recipe a shot. We guarantee it’ll be love at first sip.

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