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is the Miir new standard a Chemex killer? (sh.itjust.works)

submitted 1 week ago by [email protected] to c/[email protected]

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Need to talk about coffee stuff today guys. Gotta keep my mind off the news as much as I can.

I still use my chemex for washed multicup brews. I think it excels at this, and I love the asthetic. I have a handmade wool cozy for it and a 3d printed lid to keep these larger brews warm though and while the cozy is protective, I do worry about breaking this fragile brewer.

It seems like the Miir directly addresses the thermal and fragility concerns and still allows use of the chemex filters. Seems hard to argue with that.

Other than nostalgia and maybe not wanting to spend a cool $80 right now, any reason to hold on to the Chemex?

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[–] [email protected] 5 points 1 week ago (6 children)

I wouldn't consider these huge issues, but there's 3 areas where I think the miir design suffers relative to the chemex. The pourover part looks like just a single wall. Obviously the chemex is, too, but according to a quick look on wikipedia, stainless has ~10x the thermal conductivity of borosilicate glass, so your brew chamber is going to cool more quickly. No clue if it would be enough to make a difference in brew temp, though.

The stainless carafe part sounds good, too, but stainless travel mugs almost always get lots of coffee residue buildup, and it's a bit of a process to get them properly clean to the point where you don't smell it. I always end up washing with baking soda and/or citric acid a few times. Glass stays cleaner, and it's also easier to see how clean it is.

Lastly, it might just be me, but every once in a while, my scale times out if I'm doing other stuff while making coffee, or I'll make coffee without a scale. It's really nice to be able to see visually how much coffee there is in the carafe.

[–] [email protected] 2 points 1 week ago (4 children)

stainless has ~10x the thermal conductivity of borosilicate glass

Glass has double the heat capacity, and I would assume greater mass due to thicker construction. So unless you are preheating fully to boiling temps first every time, there will be more heat loss to the glass over the course of ~1-3 minutes

[–] [email protected] 2 points 1 week ago* (last edited 1 week ago)

For what it's worth, wetting paper filters is usually done with near boiling water in the chemex, so it IS preheated with the regular process. Preheated steel also won't retain as much heat. I don't disagree with your post as written, it just doesn't match the reality of what's usually done

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