Reasons for the popularity of paper soup cups
Most major fast food chains use paper food containers to wrap soups for takeout. These to-go containers are popular for several reasons.

Custom Printing – Paper soup containers can be custom printed to your brand. Chain restaurants put it in containers with colors and logos. Custom printed restaurant supplies enable customers to quickly identify where their food is coming from and serve as advertising when others see customers eating from these printed containers.

Grease-resistant paper soup containers are double-lined with polyethylene. In other words, the interior is coated with a plastic material that prevents hot liquid contents from seeping out of the paper structure. The soup will not be absorbed because the smooth lining will cause it to slide straight off.

Microwavable – Soup in takeout containers can be reheated in the microwave. Other types of takeout containers are made of styrofoam or PET plastic, which are not safe for microwave ovens.
Secure with LIDS – Paper soup containers always have a matching lid to form a tight and secure seal perfect for shipping. Be sure to find the correct lid size for your container cups.
Eco-friendly option – Typical paper soup containers are made from renewable resources, however, they’re lined with plastic, which means they can’t be recycled or composted. Fortunately, there are environmentally friendly takeaway containers that are lined with PLA, a plant-based material, and after use, the whole takeaway container can be composted in a commercial facility.
Available inserts – Use plastic inserts to separate broth from additives such as noodles or vegetables. Container plug-ins help keep ingredients fresh and avoid getting wet, thus providing a better eating experience.