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Need a little guidance on grinding (self.coffee)

submitted 4 months ago by Bronzie to c/[email protected]

19 comments fedilink hide all child comments

Morning Gentlepeople.

As a coffee newbie I am having some small issues while trying to improve my game. I have a Oracle Touch and subscrube to a local monthly coffee delivery, so my beans change weekly.

My issue is that the grind setting is incredibly different from bean to bean. With my last bag, grind 14 gave a perfect 1:2,5 ratio. With a different bean today, I had to discard two cups before learning that grind size 3 gave me the same ratio. 14 gave me 1:3,5 which tasted rubbish.

The problem is that I got channeling and very little crema.

I guess the questions are: do different beans require completely different ratios or am I doing something very wrong?
Should I accept a very high ratio to avoid channeling on certain beans?
Or should my timer be lower on certain beans?

Thanks in advance for any help and have a great cup this morning!

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[–] [email protected] 3 points 4 months ago (5 children)

It might help to know a little more about the actual beans. Depending on the roast those ratios might indeed vary greatly, I’d think.

[–] Bronzie 2 points 4 months ago (4 children)

These are quite dark. Other than that, I know very little about them.
I’d go crazy and say similar roast to the supermarket beans I get great results with at 14 grind, if that is of any use?

Cheers!

[–] [email protected] 3 points 4 months ago (3 children)

The darker the roast, the lighter a bean should be. You could count a number of beans you have your numbers right and get decent results with, weigh them, and thus compare their roast to that of other beans. That way you‘d be able to find out if your achieved ratios are tied to the roast. Maybe you could even work out a scale telling you what to expect, a ballpark to get your ratio somewhat right when opening a new bag of beans.

That said, I’m only citing theory here, don’t take what I say as the last word on anything :)

[–] Bronzie 3 points 4 months ago

Appreciate you taking the time!

I’ll do some volume/weight tests and see what the difference is. If it’s lighter than I thought, a higher ratio is what I should be going for anyways.

Cheers mate!

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