高圧 こうあつ蒸気 じょうき滅菌 めっきんではありませんでした
kōatsujōkimekkindewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 高圧蒸気滅菌

1. Was not high-pressure steam sterilization.; Was not autoclaved.

Past/Perfective
Negative
Polite
Formal Register