I just visited Four Roses Distillery in Kentucky, and found a logo glass that looked etched at first, but when the glass was chilled, the "etching" went from translucent to red.
As a science geek, and a lover of chilled beers, this has been intriguing me.
A heat-sensitive design might cost a little extra, but I would be interested in one.
(I would also be interested in a regular glass)
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