Hey there...
PLEASE DO NOT PUT ANYTHING WITH IPA IN THE OVEN!!! 
That's pretty dangerous. You should never put IPA or acetone or whatever near a hear source or an open flame. That's pretty much the worst idea i ever heard. 
Just let it dry. It can take up to 2 weeks until the IPA is completely gone. 
When the leaves seem dry close the lid...open it after 1 hour. If it still smells like IPA let it dry again....repeat as long as it takes. Until you can't smell anymore IPA. 
Cheers
This world is a hoax! Go for it and create your own reality...