[evilhackerdude]

Cool technique!

Wondering if there’s a low-bullshit reusable coffee filter medium to remove some of the oils.

What I want to get sorted most right now is water. I use tap water, but I need to filter it because it’s really, really calcareous. Most filters are made of plastic, or at least plastic cartridges with the filter medium. I was thinking about using glass or metal instead and somehow machine a container for the filter medium and buy that stuff in bulk. I really don‘t want to buy bottled water to make coffee.

Any thoughts?

[salamandersauce]

Yes there is. Cloth filters are a thing. Coffee sock is one brand I know of that make filters for V60s and others. Obviously you need to clean it and occasionally boil it remove oil buildup.

[timr]

These are what most of the old-school kissaten (the ones with the vacuum siphons) use in Japan.

[forgotmypw17]

What a great idea! Thanks!

Do you know what kind of cloth is commonly used? I imagine it's something like linen, cotton, or hemp?

[salamandersauce]

I've only used the Coffee sock ones I mentioned and those are cotton.

[evilhackerdude]

Least alluring name for a thing ever, but love the concept. Will definitely check it out :)

[timr]

Most pro/under-sink water filters can be recycled. I use a body glove system, and you send back the cartridge for recycling after you've replaced it. I didn't install mine (came with my place), but I think it's around $1000 to get a full system with filter, instant hot water, tap, etc. Drop the instant hot water, and and you're probably down to $500 or less.

If you're concerned about waste, a filter is far preferable to bottles of water or consumer-grade water pitchers, even if there's plastic involved.

[evilhackerdude]

Thanks for the advice! Definitely getting an everything-water system for the next place.

[forgotmypw17]

Finding clean water is a major challenge in today's world, and I'm afraid I don't have any easy answers for you. You have to dig deep...

Not all filters can remove all the impurities added by today's water channels and sources...

Bottled water which is single-source, in bottles which leach less, AND has a short travel distance is rare...

In most areas, well water and other natural bodies is best tested regularly by a lab which will tell you the results...

I've heard of a few other methods of water purification, such as multi-step macro-process, but I've yet to try them myself.

[evilhackerdude]

I’ll probably settle for filtering local tap water as well as I can. There are a couple of restaurants and cafés in town who obsess about water quality so I should probably talk to them.