ONE COPPER ONE BOILING.
197
When we have got all in copper, we find—
| Forty-seven barrels at 22.3—or | 1048. | 1 | ||
| From which deduct 10 per cent | 109. | 1 | ||
| Divide by 26, strength required per barrel | 26) | 939. | 0 | (36 |
| and 3 lbs. over. | ||||
We must now, as before, calculate what number of barrels must be turned out of the copper, so as that 36 may go into the gyle-tun. We use 2 lbs. of hops per barrel, 94 lbs., which will increase the quantity in the copper to 48½ barrels, and these will retain one barrel and at-half, or rather more, and about eight barrels will be evaporated on the coolers.
| Wanted | 36 | |
| Add for evaporation and condensation | 8 | |
| Retained by hops | 1 | ½ |
| Turn therefore out of copper | 45 | ½ brls. |
We find, in the gyle-tun, thirty-six barrels one firkin, at 26 lbs. gravity, or nearly so, at least correct enough for practice.
| Multiply the number of barrels in tun | 36 | ||
| By the gravity | 26 | .2 | |
| Div. by the number of quarters malt | 10) | 943 | .2(94.3 |
| gravity per quarter. | |||
For process of fermentation, see page 184., "Second Ale."
