DO NOT USE THE POPCORN BUTTON ON YOUR MICROWAVE. We recommend setting the microwave to a longer time and then listening for 2 to 3 seconds between pops to know the popcorn is done.The bags will pop the most kernels in a 1200 watt microwave. Usually, there are around 500 kernels per bag, and most pop. Slight natural variations in moisture in each kernel make some pop faster, slower, and some not at all. Please be sure your microwave is set to high power.Please be sure to remove any shield guards you may have in your microwave.The popcorn should be stored in a cool, dry place. If frozen or stored in refrigerated, the kernels will dry out.