Occupations > British wine-maker, and domestic brewer

286
BREWING FROM
(say 86 and 41), the whole amounting1 for the ale-
wort to eighty-two gallons, the mean gravity must
now be found. This is done by multiplying the
two worts by their respective gravities, then add¬
ing the products together, and dividing by the
number of gallons.
40 galls.
86
*240
320
40 3440
42 1722
82)5162(625!
492
242
164
~7S
By this example it will be seen, that the mean
gravity is so nearly 63, that it may be called so,
especially as I have not worked the fractions.
Having now drawn off nearly six pounds of sugar,
or saccharum, by the first extraction, and forty-
eight pounds from the seven sparges, there re¬
main now only in the mash forty-eight pounds for
the thirty-six gallons of water, which are to be
sparged in the same manner, with six sparges of
six gallons each. This last extraction will run
more than thirty-six gallons, as there was some
42 galls.
41
1722