Increasing the temperature (baking), an ion pump allows lower pressures to be reached faster due to increased outgassing from internal pump surfaces. Ion pumps without magnets can withstand bake temperatures in excess of 450 °C. The magnets themselves can withstand temperatures up to 300 °C and have to be demounted at higher temperatures. Due to the fact that the used cables are bakeable up to 250 °C, an IGP can be baked out during operation at 250 °C.