Excellent find - I haven't heard of this one. The marketing gag approach reminds me of the Zotac Mekspresso build by Ali “THE CRE8OR” Abbas.
https://thecre8or.de/mekspresso.htm
The tubing and pumps are food safe, however, the radiators and cooling block are not. It's a special tasting cup of coffee best consumed in moderation.
This is the very best kind of silly project. :) I'm pleased to learn that the coffee is an effective (... sortof) heatsink and not merely part of the case.
https://imgur.com/a/mulled-wine-pc-WW1pW
It could get to 60°C which is a bit low for coffee but was great for mulled wine