Four-vessel DDR brewhouse

More DDR fun today. I've accumulated so much material on DDR brewing that maybe I sould assemble it into a book. Like "DDR! volume two". Except who would be interested in a book about a country that no longer exists. Let me know if you would. If there's enough interest, I might nail it together.

Back to the topic of the day. A four-vessel brewhouse. In the DDR. Though, if you look closely, it couldn't be a West German system. As there's a second mash tun. One specifically for a cereal mash of unmalted grains. Which obviously wouldn't apply in Reinheitsgebot-land. Where you would only need three vessels.

I suppose that the extra mash vessels must have been installed after WW II. As the use of unmalted grains wouldn't have been allowed before then. I imagine that, in most cases, the other three vessels were already installed and continued to be used.

The four vessels were:

a mash tun, which was unheated
a mash kettle for boiling the partial mash
a lauter tun
a wort pan for boiling the whole mash*

A simpler, two-vessel system was also in use. Here, one vessel functioned as both mash tun and lauter tun and the other as mash kettle and wort kettle.** Which is more like the set up in a traditional UK brewhouse, though used in a different way.

Looking at the Helles Vollbier mashing scheme I published a few days ago, it's clear that some breweries had a two- or three-vessel brewhouse. In that scheme, the cereal mash was performed in the kettle rather than a dedicated mash kettle. I imagine that situation was more common than the system illustrated here. 

(1) mash kettle I    (4) wort kettle    (7) hop montejus    (10) discharge pump
(2) mash kettle II    (5) malt mill    (8) agitator drive
(3) lauter tun    (6) adjunct mill    (9) mash pump


* "Technologie Brauer und Mälzer" by Wolfgang Kunze, VEB Fachbuchverlag Leipzig, 2nd edition, 1967, page 260.
** "Technologie Brauer und Mälzer" by Wolfgang Kunze, VEB Fachbuchverlag Leipzig, 2nd edition, 1967, page 260.