You should keep that food around 33-35c
Chastise is a verb meaning rebuke or reprimand severely or to discipline, especially by corporal punishment. scold, upbraid, berate, reprimand, reprove, rebuke, admonish, chide, censure, lambaste, castigate, and lecture are some of its synonyms
The narrator is invited to dinner as an anniversary of sorts that happened a long time ago, where he announced that he built a time machine. And then he arrives dirty and rugged beginning to tell the guests his story
the words help bring the piece of writing to life. they may help in creating imagery, and they may even help the reader feel like they are involved in the story. the choice of words can also help set the mood for the story like mysterious, happy, sad, etc.