Heat your first copper of liquor for mashing, and strew over it a double handful of bran or malt; by which you will see when it begins to boil; for it will break and curl, and then it is fit to be let off into the mash tub, where it must remain till the steam is quite spent, and you can see your face in it, before you put in your malt; and then you begin to mash, stirring it all the while you are putting in the malt: but keep out about half a bushel dry, which you are to strew over the rest, when you have done stirring it, which will be as soon as you have well mixed it with the liquor, and prevented it from clodding.
After the dry malt is laid on, cover your mash tub with cloths, to prevent losing any spirit of the malt, and let it so remain for two hours. Meanwhile have another copper of liquor hot; and at two hours end begin to let off your first wort into the under-back. Receive a pailful of the first running, and throw it again upon the malt.—You will find that the malt has sucked up half of your first copper of liquor; and therefore to make up your quantity of wort for your strong beer, you must gradually lade out of the second copper, and strew bowl after bowl over the malt, giving it time to soak thro', and keeping it running by an easy stream, till you perceive you have about forty gallons, which in boiling and working will be reduced to thirty-six.
If you throw into the under-back (whilst you are letting off) about half a pound of hops, it will preserve it from foxing, or growing sour or ropy.
Your first wort being all run off, you must soften the tap of the mash tub; and take a copper of hot liquor for your second mashing, stirring up the malt as you did at first, and then cover it close for two hours more. Meanwhile you fill your copper with the first wort, and boil it with the remainder of the two pounds of hops, for an hour and an half, and then lade it off into the coolers.
Contrive to receive the hops in a sieve, basket, or thin woolen bag that is sweet and clean; then immediately fill your copper with cold liquor, renew your fire under it, and begin to let off your second wort, throw a handful of hops into the under-back, for the same reason as before: you will want to lade a few bowls full of liquor over the malt to make up the copper full of second wort; and when you have enough, fasten the tap and mash a third time after the same manner, and cover it close for another two hours; and then charge your copper with the second wort, boiling it for an hour with the same hops.
By this time you may shift your first wort out of the coolers into a working tub, to make room for the second wort to come into the coolers; and then your copper being empty, you may heat as much liquor as will serve you to lade over the malt, or, by this time, rather grains, to make up your third and last copper of wort, which must be bottled with the same hops over again; and then your coolers are discharged of your second wort, to make room for the third; and when they are both of a proper coolness, they may be put together before you set them a working.
During the time of shifting your liquors out of the copper, it is of consequence to take care to preserve it from receiving damage by burning: you should always contrive to have the fire low, or else to damp it at the time of emptying, and be very expeditious to put in fresh liquor.
Of working the Liquor.
In this, regard must be had to the water: liquor naturally grows warm in working; therefore, in mild weather, it should be cold before it be set on, but a little warm in cold weather. The manner of doing it, is to put some good sweet yeast into a hand-bowl or piggin, with a little warm wort; then put the hand-bowl to swim upon the wort in the working tub, and in a little while it will work out, and leisurely mix with the wort, and when you find the yeast is gotten hold of the wort, you must look after it frequently; and if you perceive it begins to heat and ferment too fast, lade some of it out into another tub; and when grown cold, it may be put back again; or if you reserve some of the raw wort, you may check it leisurely, by stirring it in with a hand-bowl. The cooler you work your liquor, the better, provided it does but work well.
If you happen to check it too much, you may forward its working, by filling a gallon stone bottle with boiling water, cork it close and put the bottle into the working tub.—An ounce or two of powdered ginger will have the same effect.