Rose processes in 1896

Let’s take a look at some of the processes now. Beginning with the mashing scheme.

The scheme in the table below is specifically for a Light Bitter, though those for all the other beers were basically the same.

With a single infusion mash followed by an underlet and multiple sparges, it’s a pretty standard late-19th century English scheme. The underlet essentially turning it into a type of step mash. The temperatures also look pretty standard.

Moving on, we’ll look at boiling at fermentation.

The boil times are a little on the long side, but not stupidly excessive. In general, boil times were between 1.5 and 2.5 hours.

Pitching temperatures look pretty standard, at 60º F for the weakest beers and a few degrees lower for the stronger ones. Most interesting are the maximum temperatures, which are in a very narrow range of 66º F to 67 º F. That wasn’t by accident. As the temperature was maintained at that level for all but the first two days. Presumably through the use of attemperators.

As for the length of fermentation it’s a little bit on the long side, times generally being a day or two shorter, Probably, because they kept the temperature quite low during fermentation. At most breweries, it would be allowed to rise to the low 70sº F. 

19th October 1895 Rose AK
action	barrels	strike heat	time stood (minutes)	tap heat
mash	22	162º F	15	149º F
underlet	4	180º F	120	154º F
sparge 1	12	175º F
sparge 2	12	170º F
sparge 3	10	165º F
sparge 4	10	160º F		160º F
Source:
Rose brewing record held at the North Yorkshire County Record Office, catalogue number ZDI.

Rose boiling and fermentation in 1896
Beer	Style	boil time (hours)	Pitch temp	max. fermentation temp	length of fermentation (days)
M	Mild	2	60º F	66º F	7
X	Mild	2.17	59.5º F	66º F	8
XX	Mild	2.17	58.5º F	66º F	8
XXX	Mild	2.17	58.25º F	66º F	8
XXXX	Mild	2.33	58º F	67º F	8
B	Pale Ale	2.17	60º F	66.5º F	8
AK	Pale Ale	2.25	59º F	66º F	8
IPA	IPA	2.33	58.5º F
PA	Pale Ale	2.17	59º F	67º F	8
Stout	Stout	2.25	58.5º F	67º F	8
Source:
Rose brewing record held at the North Yorkshire County Record Office, catalogue number ZDI.