空焚き

Etymology
Compound of.

Noun

 * 1) heating empty cookware (as when forgetting to put water in a kettle, pot, etc.); dry heating cookware
 * 2) * 2013, (editor), 『化学実験における事故例と安全』

Verb

 * 1) to heat empty cookware (as when forgetting to put water in a kettle, pot, etc.); to dry heat cookware