More sauce for your money
Now, while some people might like their fries naked as nature intended, for others, it’s all about the sauce. If you’re in a fast-food restaurant then the chances are your ketchup is going to be self-service. Those little paper cups don’t hold that much, and carrying two or three can be a logistical problem.
Well, the answer is in the design. Those little pots are made to be flattened and enlarged so that you can fit in as much of your favorite condiment as you need. Just pull out the rim and you end up with a much bigger receptacle. Also, there’s more room to dunk your fries in when you’re back at the table.