A later method for making fourrées involved adding silver to the base metal coin after it had been struck. This method allowed even less silver to be used, which became more important in order to make counterfeiting profitable as the official coinage was debased. The exact method by which these coins were silvered is unclear, although possible methods include dipping the coin in molten silver, brushing the coins with molten silver, or dusting the coin with powdered silver and heating it until the silver melted.