What are laboratory ovens used for? - Science & Laboratory

if it is more than 5 years old , it is a distinct possibility
contact the ,manufacturer technicians /engineers and confirm the material used

Are you an inspector of any spirit distillery?
Seems so.
Brand, Rum or Wine? Products? Be frank with your questions.

Internal thermostat is malfunctioning.

Replace the internal thermostat, or have serviced.

A laboratory oven can be over 650 degrees fahrenheit (340 degrees celsius).'

Wikipedia says" :
Laboratory ovens are ovens for high-forced volume thermal convection applications. These ovens generally provide uniform temperatures throughout. Process applications for laboratory ovens can be for annealing, die-bond curing, drying, Polyimide baking, sterilizing, and other industrial laboratory functions. Typical sizes are from one cubic foot to 32 cubic feet (0.91 m3) with temperatures that can be over 650 degrees fahrenheit (340 degrees celsius).

Wikipedia says: A hot plate is a portable self-contained tabletop small appliance that features one, two or more gas burners or electric heating elements. A hot plate can be used as a stand alone appliance, but is often used as a substitute for one of the burners from an oven range or the cook top of a stove. Hot plates are often used for food preparation, generally in locations where a full kitchen stove would not be convenient or practical, as hot plates are easily moved from one location to another.

lab ovens typically range from one cubic foot to 32 cubic feet