1911 Encyclopædia Britannica/Brewing/Plates

Fig. 5.—REFRIGERATORS IN “LAGER” BREWERY OF MESSRS. ALLSOPP.
The hot wort trickles over the outside of the series of pipes, and is cooled by the cold water which circulates in them.
From the shallow collecting trays the cooled wort is conducted to the fermenting backs.

Fig. 6.—BURTON-UNION SYSTEM OF CLEANSING. (MESSRS. ALLSOPP’S BREWERY.)
The green beer is filled into the casks, and the excess of yeast, &c., then works out through the swan necks into the long common gutter shown.