How to make OIL FREE POPCORN: Wind-popped healthy popcorn

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Today we're going to make some hot air popped popcorn. Yummy! It's nice to make it the traditional way by placing a pot on the stove and adding cooking oil and then popping some popcorn in it, but I have found that I do not feel too good after eating something so greasy and oily. So the solution to this problem is to get a popcorn maker that uses hot air to cook the popcorn until it pops and gets blown out of the machine. But are there any problems with popcorn made with hot air? Maybe so.