Keep food cool by placing this card in the refrigerator.

It also works outside the refrigerator and can be placed under a fruit bowl, in a bread box or any other place where you want to slow down food storage. The card itself is guaranteed to last at least a year.

The card does not need to touch the food, which can remain in its original packaging until you are ready to eat it.

The Food Freshness Card was among the winners of the annual Edison Awards last week for innovative products. He won the honors in the Food Tech category.

The card was manufactured under three US patents and independently tested by Modern Testing Services in Norwood, Massachusetts.

On the Nature's Frequencies website, you can watch an accelerated video comparing the speed with which raspberries, tomatoes, spring greens and other foods degrade, with and without the map.

And no, I have not yet tested the map myself.

Mmmm, AI: Is AI a special ingredient to improve the taste of food? IBM and McCormick think so

Where you can get it

Individuals can purchase the card on the Nature's Frequencies website for $ 74.95, although the company primarily uses its technology for industrial use. In other words, to people who can sell, store or deliver perishable goods to your local grocery store.

Although the explanation of how all this works can be quite technical (some details are kept secret), the card simply inhibits the growth of mold and bacteria to extend shelf life and keep food fresh. It has about a radius of 3 feet.

Food waste is a huge global problem, of course, especially when you consider all hungry people on the planet.

Nature's Frequencies points out that 1.3 billion tons of food are thrown away each year, costing the average American family $ 2,200 a year. In addition to this, supermarkets throw about 43 billion pounds of food a year and restaurants 50 tons.