| CLOCK | ELAPSED | EVENT | AIR | CHARCOAL | ORE | ||||
| Pruszkow 1 - Sep 9, 2016 | UNIT | COUNT | TOTAL | min/kg | Unit | TOTAL | |||
| bucket | kg | kg | kg | ||||||
| 2 ? | |||||||||
| E 0900 | start wood splint - dry to pre-heat | ||||||||
| 1025 | added fines to set base | ||||||||
| 1030 | seal arches, start gentle air | ||||||||
| 1:30 | start to fill with rough charcoal | 65% | 2 | 2 | 4 | ||||
| 1037 | added first graded bucket | ||||||||
| 1043 | 6 | (tamp down gaps ?) | 1 | 3 | 6 | 3 | |||
| 1057 | 14 | 1 | 4 | 8 | 7 | ||||
| 1112 | 15 | 1 | 5 | 10 | 8 | ||||
| 1115 | sealed gaps along air system | ||||||||
| 1125 | 13 | 1 | 6 | 12 | 7 | ||||
| 1135 | 10 | start ore as 4 @ 250 gm | 1 | 7 | 14 | 5 | |||
| 1147 | 12 | 1 | 8 | 16 | 6 | 1 | 1 | ||
| 1200 | 13 | 1 | 9 | 18 | 7 | 1 | 2 | ||
| 1211 | 11 | fracture at top edge of furnace | 1 | 10 | 20 | 6 | 1 | 3 | |
| temp = 1040/1334 | |||||||||
| 1223 | 12 | ore as 4 @ 500 gm | 1 | 11 | 22 | 6 | 2 | 5 | |
| temp = (3rd) 1260/1110/1020 | |||||||||
| 1234 | 11 | 1 | 12 | 24 | 6 | 2 | 7 | ||
| 1245 | 11 | 1 | 13 | 26 | 6 | 2 | 9 | ||
| 1257 | 12 | 1 | 14 | 28 | 6 | 2 | 11 | ||
| 1308 | 11 | ore as 3 @ 1000 gm | 1 | 15 | 30 | 6 | 3 | 14 | |
| 1322 | 14 | 1 | 16 | 32 | 7 | 3 | 17 | ||
| 1334 | 12 | ore as 4 @ 500 gm | 1 | 17 | 34 | 6 | 2 | 19 | |
| 1344 | 10 | 1 | 18 | 36 | 5 | 2 | 21 | ||
| 1354 | 10 | ore as 3 @ 1000 gm / bubble sound | 1 | 19 | 38 | 5 | 3 | 24 | |
| 1356 | tap arch openned | ||||||||
| 1401 | raked out lower base fines | ||||||||
| 1407 | 13 | 1 | 20 | 40 | 7 | 3 | 27 | ||
| 1419 | 12 | 1 | 21 | 42 | 6 | 3 | 30 | ||
| 1430 | 11 | cover charcoal | 1 | 22 | 44 | 6 | |||
| added second cover charcoal | 1 | 23 | 46 | ||||||
| start burn down | |||||||||
| 1500 | reduced air / furnace to about 1/2 | ||||||||
| (no record of extraction time) | |||||||||
| TOTALS (kg) | |||||||||
| Charcoal | 46 | ||||||||
| Consumption (average min/kg) | 6 | ||||||||
| Ore - 50/50 Harres / Goldager | 30 | ||||||||
| Bloom | 5.8 | ||||||||
| Yield (%) | 19.3 | ||||||||