Foam insulation is what keeps hot foods, hotter, longer, in delivery bags. It is found between the outer layer of fabric and the inner lining of the bag, acting to reduce heat conduction (the transfer of heat through a solid), with its excellent insulating abilities. We carry insulated food delivery bags with 1″ or 2″ thick insulation within their cores.
Foam insulation can be closed cell or open cell in nature, with closed cell being a better insulator, but significantly more expensive, heavier, and rigid than open cell foam.
Open cell foam is less expensive than closed cell foam, light in weight, and easy to compress, making it ideal for insulating delivery bags in food service applications. Rarely will you find closed cell insulation in an insulated delivery bag.
Types of Foam Insulation
There are three main types of foam insulation used in insulating delivery bags: polyvinyl chloride (PVC), polyurethane (PU), and polyester.
Polyvinyl Chloride (PVC) Foam Insulation
A type of thermoplastic polymer, polyvinyl chloride (PVC) is a durable, cost-effective material. It’s available in hard or soft forms, with soft PVC being the more common form used in insulating delivery bags. Soft PVC is extremely flexible thanks to a higher concentration of plasticizer than hard PVC contains. It’s also resistant to oil, grease, and chemicals, making it ideal for high volume food service applications.
Polyurethane (PU) Foam Insulation
Commonly referred to as PU, polyurethane is a polymer that is considered to be a highly resilient, flexible, and durable material. It’s extremely versatile, and because it’s PVC free, it’s becoming increasingly popular as a foam insulation option.
Polyurethane is breathable thanks to its open cell design, which means it’s also highly resistant to mildew and won’t trap odors. It’s also light weight, making it ideal for food delivery personnel to carry from one location to the next.
We offer polyurethane-insulated food bags and polyurethane-insulated pizza bags.
Polyester Foam Insulation
Polyester foam is a type of polyurethane that features a higher tensile strength than its polyurethane foam counterpart (polyether). This results in a foam that is just as flexible, breathable, and light weight as traditional polyurethane foam, but with superior cut resistance, too.
Insulated Food Delivery Bag Uses
Delivering foods from kitchen to customer can prove to be challenging without the right tools for successful delivery.
Pizzas may get cold before they arrive to their destination, and they may get shuffled around in their pizza boxes.
Cans of soda may get shaken up, sandwiches may deconstruct, and your signature mac-and-cheese may lose its cheese during transport.
This is where insulated food delivery bags come into the picture.