To separate the copper from the ore, blowpipes and foot bellows were used to raise the temperature of the charcoal fires to about 2,200 degrees Fahrenheit (1,200 ° C) for eight to ten hours.
Selleks et vasemaagist metalli eraldada, hoiti puhumistorude ja tallatavate lõõtsade abil puusöe põlemistemperatuuri 8 — 10 tundi 1200 ° C juures.