What are your dietary restrictions? If cutting out extra calories is your goal, you can narrow your choice to a stand-alone hot air popper or a microwave popper that doesn't cook with oil. However, if you realistically can't see yourself cutting oil out altogether, there are poppers that will also make flavorful popcorn with just a minuscule amount of fat.
What are your space constraints? Think about whether you want an appliance that will sit on your counter at the ready or if you'd prefer to store a somewhat smaller bowl in a cabinet or closet. Also, take a look at the shape of the popper to ensure that it will stack neatly with other items in your cabinet. Some microwave popcorn poppers collapse to just two inches tall, so they can be easily stowed away in a drawer when not in use without taking up a lot of cabinet space.
How big is your microwave? If you are considering purchasing a microwave popper, you'll need to take measurements of your microwave's cavity. If your microwave is too compact, certain microwave poppers might not fit inside.
Is the popper compatible with your microwave? Some poppers don't function well with certain microwaves. Worse yet, it may do damage to your microwave. If you are looking to buy a microwave popper, consult your owner's manual or call the microwave manufacturer to check whether the popper is compatible.
Do you want to make gourmet popcorn recipes? If you're looking for a popcorn maker that you can use to make gourmet popcorn recipes such as caramel corn or cheese popcorn, some popcorn poppers may not be compatible with these added flavorings. Be sure to research the types of ingredients that are safe to use with your popcorn maker.
Do you have a preferred brand of popcorn? Owners say that some popcorn makers work best with certain brands of popcorn, but it's largely a matter of personal taste. If you have a preferred brand, it's worth reading owner feedback to find out if your popcorn maker works well with your choice of kernels. Additionally, owners offer suggestions on flavoring and seasoning combinations that work well with various popcorn makers, and some models come with recipe books.