Think warm! Foam is one of the best insulators and when it comes to takeout, temperature is super important! After you send an order out the door, and ring up the sale, the last thing you need is to hear the phone ring with a complaint. The foam hinged lid container takes that risk off of the table - and in a hectic business like takeout, reducing risk is important. The hinged lid also reduces one more inventory need and they nest nicely to save space.