Either that or stainless steel makes it worse.

19 points

You know the little oily colorful sheen on the top of a cup of coffee?

At one point just at random I made a pot of coffee from a jug of distilled water I had, instead of the filtered tap water.

It had no little colorful sheen.

I have no idea if it’s a big deal or not, but it made me legitimately concerned.

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25 points

I thought the sheen was from oils naturally present in the beans.

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6 points

That was my understanding, as well. I can only report to you what I observed.

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4 points

Maybe something present in the tapwater allows more oil to be drawn out?

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15 points

Former barista here! This is what that is. Different machines using different roasts, water, settings, etc. will extract differently, resulting in different oil amounts.

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7 points

Filtered water will extract less due to a lack of trace minerals.

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14 points

Ceramic or nah, for me

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2 points

There is something very off-putting about drinking coffee from a stainless steel mug. I’m 100% with ceramic or bust guy.

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6 points

a diner style ceramic mug is top. Those warm curves make the coffee better

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0 points

diner style

Makes me wonder what on earth you use at home

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4 points
*

I have diner style mugs. It just refers to the shape and style of the mug. Top tier for some pour over straight black imo

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4 points

Maybe my stainless is just seasoned well… no significant taste changes to me whether I load up anything from an Americano to instant decaf.

The vibe is nicer from ceramic, though. Especially if it’s the old, diner style ceramic. I’m a bit of a sentimentalist, I guess.

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