this post was submitted on 06 Nov 2024
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Which was my point - 400g of room temperature ceramic is going to absorb way more heat from 250ml of boiling water than would be lost from the glass-air (or even steel-air) interface during the 2 minutes it takes to do a pourover.
If both cones are preheated thoroughly, yes, the steel cone will shed heat faster, however I feel like this is also negligible compared to evaporative heat loss and subsequent transfer to a cup
Yah, you may be right. I'm at the limit of my materials science knowledge, here.