21-batch brew day?

Mike O’Brien writes:

I had read an article, in a German brewing magazine, that talked about a system that could brew 21 batches in a 24 hour period! This System for 21 batches in a day uses some very highly engineered kettles to maximize energy efficiency and claim to be able to do 21 batches. When I look at their charts – I do not see how this would happen – but it does provide an idea… (to be continued)