U.S. has developed a preservative film that can be eaten in a variety of flavors

Tara McWay, an expert from the US Department of Agriculture’s Agricultural Research Service, has developed a food preservation plastic film that can be consumed. This cling film has a variety of vegetable and fruit tastes and can be decomposed by microorganisms under natural conditions.
According to the U.S. Department of Agriculture’s website, McHugh’s edible plastic wrap is based on a variety of high-density vegetable purees and fruit puree. The glucose and polysaccharide contained in the remaining raw materials can keep the plastic wrap firm and flexible. In order to prevent the plastic wrap from softening or swelling in the cold and humid environment inside the refrigerator, McHugh also added vegetable oil extracted with organic solvents to the plastic wrap, which prevents the plastic wrap from absorbing moisture in the refrigerator. Finally, the researchers used a pressing method to make the blended raw material into a circular, transparent cling film.
The cling film can have various tastes such as tomatoes, carrots, cabbages, mangoes, peaches, strawberries, and the like, and its colors include red, yellow, green, and blue. The food they are wrapped in can be isolated from the air outside the cling film, so it can stay fresh for long periods of time. If sanitary conditions are good, foods such as hamburgers can be wrapped in plastic wrap and immediately heated in a microwave, which will give the hamburger a new special taste.