When you check a toaster with a digital or analog VOM which one what indicates dirty contacts on the thermostat blade?

When checking a toaster with a digital or analog volt-ohm meter (VOM), dirty contacts on the thermostat blade can be indicated by an inconsistent or fluctuating resistance reading. If the resistance is significantly higher than expected or shows erratic values, it suggests that there is poor contact due to dirt or oxidation. In a properly functioning thermostat, the resistance should be low and stable when the contacts are closed.