schedule issue-did I screw up?

[Bonnie Rubinstein]

Big whoops-
Final fuse of a 5/16" thick 20" round piece. I altered my schedule for a slow bubble squeeze. by doing that, since my controller only allows 8 stages, I had to leave the last anneal at at 700 degrees for 10 minute hold, Intending to check it later, and add on the final ramp down of 100 degrees per hour to room temp.
Totally spaced that one out.. So, it cooled down to room temp (from 700 degrees) on its own in my studio, which it a chilly 48 degrees at night. It probably took a long time to do that, but I am not sure if I did any harm.
Any insights into this? You think the piece is okay?

Thanks!

[Brad Walker]

No problem.

I routinely turn the kiln off at 750 and let it cool on its own to room temperature with pieces as thick as 1/2", even 3/4". Your kiln would have to cool at several hundred degrees an hour for it to be a problem, and no kiln cools that fast on its own.

[Bonnie Rubinstein]

Good to know..
Thanks, Brad.. for putting my mind at rest.