Sure it would work, but your logic sounds a bit flawed.
If there is no pressure being contained, then the temperature would not get any higher then its natural atm boiling point, like in a pot of boiling water.
So you would actually get the job done faster in a big pot with a lot of surface area, and an open lid.
Expect nothing, Receive everything.
"Experiment and extrapolation is the only means the organic chemists (humans) currrently have - in contrast to "God" (and possibly R. B. Woodward). "
He alone sees truly who sees the Absolute the same in every creature...seeing the same Absolute everywhere, he does not harm himself or others. - The Bhagavad Gita
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