Vat (copper)

A large lidded copper tank, priced at 5 G.P. per cubic foot of capacity.

A copper vat is essential for creating a homunculus. After a clay replica of the creature is sculpted, it is placed in a vat large enough to hold it, the ingredients including aqua vitae are added, and the vat is closed with a seal of bee's wax and then left alone somewhere cool and dark. The work also demands a well-equipped laboratory.