replying to Don Klipstein, Chuck wrote:
20 degrees F is roughly 30 degrees C below a fairly normal room
temperature.-----that does not make sense. 30C is 86F so you are saying a
fairly normal room temp is 106F. I would say that 20F is 9C below a normal
room temp of 20C. So do your calculation using the number 10. In your example
you use 5 minutes. Double that once for an answer of 10 minutes

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