Need a little guidance on grinding - eviltoast

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!

  • Bronzie@sh.itjust.worksOP
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    4 months ago

    It’s starting to dawn on me that you might be right.

    I think I’ll keep trying different beans to test a lot of different coffee before landing on one variety and order that instead.

    I’ve gotten a lot of really good advice here today that I’ll use in my future brewing career.

    Thanks for taking the time, mate!

    • almar_quigley@lemmy.world
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      4 months ago

      If you’re gonna do that you can also try cupping beans first to get a sense of what they taste like before properly extracting them. I roast as well and this always helps get like the essence of the bean/roast profile’s taste down so I know how I want to extract.