If you search YouTube for V60 brewing videos and guides you’ll find about three billion different ones. Some with agitation, some without; pouring fast, in the middle, making circles; 40-60 or 30-70 or whatnot.
I always think to myself that they’re mostly just fluff.
It all depends on grind size and temperature. Doesn’t matter how you pour (well, within limits I would think) as long as you get your temps and grind right for the pouring technique you’ve chosen.
Admittedly, I haven’t tried a ton of different ones, maybe three or four. But this is the feeling what I’ve got.
Maybe there are some edge cases, like Ethiopian coffees being more prone to clogging the filter so less agitation might be a good idea.
All I know is I have yet to get a consistent cup of coffee. Thought moving from ground to whole bean would help, then from drip to pour over. From manual grinder to electric. With all other variables the same, I still have not been able to make a consistent cup. Getting rid of fines has made the biggest impact on consistency, how I have poured, in my opinion, has made the least.
It’s easier to be more consistent with a immersion brewing method compared to percolation. The only variable in immersion brewing would be grind size and water temperature.
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I use Hario switch too but manually brewing like a V60, so I keep the flow off during blooming (add like 2x of grind weight in water and wait for 30secish) and then do two pours, about half and half of my entire batch.
How do you get rid of fines?
For now I’m slow loading my grinder. It’s tedious and takes 4 minutes, but I have very little fines as a result. Need to find a solution other than a sifter, don’t want to lose coffee.
Upgrading grinder can definitely help with fines, and btw manual grinders usually give you way value for your money. Also some coffees do make more fines than other ones, like I mentioned in the post that Ethiopian coffee tends to make more fines.