Make delicious and healthy popcorn in minutes in this Micro-Pop microwave Borosilicate Glass Popcorn Popper maker. No butter or oil is needed as such, but if want it to be butter popcorns then just add it to the silicone lid and pop the Glass Popcorn maker in the microwave. When you hear the Corn poping – it means your popcorns are hatched healthy ready to be munched on.