Why does spraying popcorn with oil (Pam) make it pop better in a paper bag?
I'm still experimenting with popcorn microwaved in a paper bag. I tried putting the kernels in a dish and giving them a quick shot of Pam. Then I poured the lightly coated kernels into the bag. They popped much better although it took slightly longer to start popping. I don't understand what's going on. Any explanations?