I am a noob I have read several threads that warn against thermal shock of carboys.
I did the following:
New carboy out of the box, filled and washed using hot tap water from the tap, ~120F (I have measured temp before)
While washing had 3 gal of water boiling on the stove in prep for a partial boil brew the next day
After final rinse of carboy with hot tap water, I shut down stove and poured the boiling water from the pot into the carboy, covered opening with foil and let it steep to sterilize carboy/ protect water from contamination until adding wort the next day.
By conservative estimate I shocked the carboy by 110F.
Was I lucky?
I did the following:
New carboy out of the box, filled and washed using hot tap water from the tap, ~120F (I have measured temp before)
While washing had 3 gal of water boiling on the stove in prep for a partial boil brew the next day
After final rinse of carboy with hot tap water, I shut down stove and poured the boiling water from the pot into the carboy, covered opening with foil and let it steep to sterilize carboy/ protect water from contamination until adding wort the next day.
By conservative estimate I shocked the carboy by 110F.
Was I lucky?