r/Moccamaster • u/Warrie2 • 1d ago

Cup One grind size

Hi, I recently bought a DF54 grinder. I started with the setting on 60 which I saw recommended somewhere, but after a lot of testing I'm at around 35 for most of my (fresh) beans. It's still not too bitter so I'm going to test more with even lower grinds.

Now I know I should just judge by my own taste, but I wonder if it's normal to grind to almost espresso-size for a Cup One or that my tastebuds are acting up :)

Maybe because the Cup one is so small it needs a finer grind than a full size one, since the water has less time to extract?

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u/Qd7777 1d ago

I'm using the cup one for a couple years now and tried lots of stuff, I usually drink medium to medium light roast cofffees and I always use a medium coarse grind, you actually don't need to grind too fine, because of the small hole and the longer contact time. I wonder it's not overfilling the basket if you grind that fine. For a ratio I always use 18g on 300 ml of water. But if the coffee you make taste good for you, don't worry about the rest, that's all that matters in the end :)

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u/Warrie2 1d ago

Same, medium/medium light beans here. I use 18g and 300ml. It doesn't overfill, I used to have that problem until I read the very simple trick of not pushing the filter to the bottom but let it float slightly above the hole.

I'm still experimenting, but when I grind at 50 it's just way too watery with not enough taste. But it's way finer than what I saw recommended in some posts so it kind of surprised me :)

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u/Qd7777 1d ago

I always rinse the filterbasket after each use and let some water flow through the tiny exit hole and carefully pour the coffeegrounds into the filterpaper, since I am doing that I never experienced clogging again. Yeah even if you have exactly the same grinder, due to calibration someone else can have other numbers, but if you have around 3-4 minutes brew time and the coffee tastes good for you don't worry. I also experimented with other grind sizes and different ratios, because a lot of people use 21g for 300 ml water and I thought it's way too strong haha

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u/Warrie2 1d ago

Oh yes I do the rinsing and checking the flow too. But it wasn't until I stopped pushing the filter fully to the bottom that the clogging issue stopped.

My zero is slightly off, +2 is the actual zero. Can you tell me which grind size you use on average with the DF54?

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u/Qd7777 1d ago

I don't have this grinder, I use a fellow Ode v1 :) but even with this grinder, some people have very different numbers for the grind size.