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What is the best grind for Hario Switch?

Quick answer

The best grind for the Hario Switch is a medium grind, similar to sea salt. Because the Switch functions as both a pour-over and an immersion brewer, a medium grind provides the necessary balance for both methods. If your coffee tastes bitter, coarsen the grind; if it tastes sour or weak, use a finer setting.

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The real story

The Hario Switch is a versatile hybrid brewer that combines the clarity of a pour-over with the body and consistency of an immersion brewer. Its unique design features a switch that allows you to keep the water in the cone for a full immersion steep or release it for a traditional drip-style drawdown. Because of this dual functionality, your grind size is the most important variable you can control.

A medium grind is the ideal starting point for most recipes. It is coarse enough to allow for a clean drawdown when the switch is opened, but fine enough to extract sufficient sweetness and body during the immersion phase. If you are using a recipe that relies heavily on the immersion phase—where the coffee steeps for several minutes—you might find that a slightly coarser grind helps prevent over-extraction and bitterness.

Conversely, if you are using the Switch primarily as a standard pour-over, you may want to lean toward a medium-fine grind. This increases the surface area of the coffee, which helps extract more flavor during the faster drawdown. The key is to pay attention to the 'drawdown time.' If the water takes too long to pass through the bed, your grind is likely too fine; if it drains almost instantly, it is likely too coarse.

Consistency is key. Because the Switch is a precision tool, using a high-quality burr grinder will yield much better results than a blade grinder. A uniform grind ensures that all particles extract at the same rate, preventing the 'muddy' flavors that occur when some particles are over-extracted while others remain under-extracted.

In practice, the Hario Switch is a forgiving brewer, but it rewards experimentation. Start with a medium grind and adjust based on your taste. If you find your coffee is consistently lacking depth, try a slightly finer grind. If it feels heavy or astringent, back off to a coarser setting. Once you find the 'sweet spot' for your favorite beans, you will be able to replicate that perfect cup every morning.

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