Lead melts at a temperature of 621°F (327°C) . To melt lead, a powerful yet safe heat source is required, such as a gas-powered heat source, an electric melting pot, or a handheld blowtorch or propane burner. If using an electric melting pot, it should be set to a temperature of 700-800°F (370-425°C) . The melting time can vary based on the heat applied, impurities in the lead, ambient temperature, and other factors. Once the lead is fully melted, floating impurities called "dross" will appear, and they should be skimmed off using a slotted aluminum spoon.