Not sure where I read it, but apparently they are mostly bought by women because the flip phones are more practical when you have tiny or nonexistent pockets and a small purse.

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You can also get creative using different syrups and make starbucks style lattes.

I’m enjoying the V60 recipe from the last James Hoffmann book (The best coffee at home). 60 gr per liter. I experienced a lot with other recipes and ratios during the past few years, but this one is super easy to reproduce and makes great coffee every time you are awake enough to follow a 3 step guide. 😪

Does it even matter to adjust the ratio precisely if I don’t have a precision grinder and am using a Krups blade grinder?

Yes. Your coffee uniformity and your ratio are different things. You should check this video from the one and only Mr Hoffmann.
In any case, if you are enjoying your pourovers, you may want to invest in a better but cheap hand grinder. Timemore makes great products at an affordable price.