Coffee

I started with 60g/L scaled down to a 28g dose because it’s a good amount of brewed coffee for me and it means a bag of 12oz coffee is 12 cups with a little cushion. That works out to 466g (or ml) of water, but I have found I like it slightly better closer to 450g.

With blade grinder, ratio has an effect but the grind quality is definitely effecting more. I go with the 16.7 ratio for years with coarse grind and the coffee is really good every morning.

I'd suggest getting a good burr grinder. That has the biggest effect for getting a quality cup every morning.

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.

Depends on the recipe I’m using, but generally between 1:15 and 1:17 grams coffee:water. I use a manual conical burr (1zpresso KMax) for my pour overs.

I personally do a 20g:300ml for hot coffee or 20g: ~320ml for iced coffee (only approximate because of the ice cubes)

So that ends up being a 15ml per 1g

Also i think you mixed up coffee and water in your post, isn't it 12.5g water to 1g coffee.

Does it even matter to adjust the ratio precisely if I don't have a precision grinder and am using a Krups blade grinder? I am trying to get things as precise as possible.

Consistency allows for reproducible results but there's diminishing returns at a certain point. My grinder is the type that has a big hopper and runs for χ amount of seconds and I don't notice a difference even though it can be up to 1g up or down.

Like most basic entry-level coffee nerds, I do whatever James Hoffman tells me to, so I use ~15g of coffee to 250g of water (which is equivalent to the 1 to 16.7 ratio suggested in your link).

I think it's still worth playing around with ratios regardless of grinder, it definitely could still make a substantial difference in your cup. However, switching to a decent burr grinder would be a massive difference both in quality of results, but (perhaps more importantly) reproducibility. Blade grinders make it harder to achieve the same grind size every time, and even within a single dose the ground consistency won't be great.

A caveat I'd like to add: blades are known to produce a lot of fines, which causes higher extraction. So maybe the lower-than-typical ratio you've ended up on "compensates" a bit for the high extraction. At the end of the day though, remember: who cares what some website/James Hoffman/random Fediverse users have to say? Do you like the coffee you make?

I typically go 18g coffee for 300g water with a finer grind. Stolen from James Hoffman's recent v60 recipe. Before that I was doing 20g to 300 with a bit coarser grind but a similar process to what Hoffman describes.

I'm using 60g/L, the best ratio in my opinion. I grind it using Timemore C2 and brew it using Hario Switch.