The Neacid pickling device is used to acidify (deoxidize) precious metal workpieces with the pickling agent Neacid (for information on Neacid, see section 3 of the instructions for use). The thermostat control of the electrically heated device and the resulting low power consumption make permanent heating possible throughout the working day. Pickling processes can therefore be carried out with the device at any time and in rapid succession.