I have used the Hario grinder for over a year now, and here are my thoughts:
My Hario grinder is great to travel with, and it doesn’t take up a ton of space in my bag. Also, because it is manual I don’t have to worry about using adapters or using it in a place where I have electricity. As long as I have hot water and my AeroPress I can make high quality coffee anywhere in the world.
Coffee aficionados prefer a burr grinder to a blade grinder. Blade grinders can heat the coffee beans while they are being ground, which can alter the taste. Also, burr grinders tend to produce a more consistent grind.
I can adjust the size of the grind depending on the method I am using (cold brew, ArroPress, V60, etc.). I don’t need to worry about having a separate grinder for each method.
When compared against other grinders of equal quality, the Hario Mini Mill Grinder is very well priced. I purchased mine from Right Side Coffee in Castelldefels for about €30.
An electric grinder is going to grind coffee much faster than a manual one like my Hario grinder. Also, while the size is great for traveling, it can’t produce a large volume of grinds at once, and it can begin to start tiring out your forearms after a while. If you are planning on making coffee for many people at the same time there are better options. That being said, it is a great option when making coffee for one or two people while traveling.
Unfortunately the shape is not perfectly cylindrical, so I cannot fit it inside my AeroPress. However, this does keep it shorter and it still packs well and does not take up that much room in my bag.
Overall, the Hario Mini Mill Manual Coffee Grinder is a great option for travelers that enjoy a great cup of coffee. I have gotten a lot of use out of mine already and it is still working very well for me.
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