Cooling is, like everything beer-related, way more complicated than it at first appears. Both in terms of the equipment used and the processes performed with them. The article taught me lots of things I hadn't realised that I needed to know. If you get what I mean. I need to review the section on cooling in "Free!".
Do take a look. I love the mixture of personal and technical. The theoretical and practical. One of the best long articles I've read in ages.
https://beerofsmod.co.uk/blogs/news/the-koelship-a-flat-cooler-for-all-occasions
Coolship and refrigerator in action in a German brewery in 1930:
ReplyDeletehttps://www.youtube.com/watch?v=_1f7m31b_HE&t=5s
From around the 7 minute mark.