Answer: anneals

AnswerCrossword Clue
ANNEALS

Tempers, in a way

ANNEALS

Tempers

ANNEALS

Strengthens, as steel

ANNEALS
Prepares earthenware, in a way
ANNEALS
Toughens
ANNEALSTempers steel by heating and cooling.
ANNEALSTempers metal.
ANNEALSStrengthens and tempers.
ANNEALSHeats, as glass, to fix colors.
ANNEALSTempers.
ANNEALSTempers with heat.
ANNEALSHeats, as glass
ANNEALSToughens, as metal
ANNEALSTreats steel