With Pāyāsi 17.7

17.7

Yadā pana so ayoguḷo neva tejosahagato hoti na vāyosahagato sīto nibbuto, tadā garutaro ca hoti patthinnataro ca akammaññataro cā”ti.

But when it lacks heat and air—cooled and quenched—it’s heavier, stiffer, and less workable.”