According to the information that is common on the Internet, the products of the most popular world fast power supply have such a non -standard composition that it practically does not deteriorate under normal conditions. We checked if it was true.

Here's what you can find out from the list "10 little -known facts about" McDonald's ": “Food from McDonald's does not deteriorate for years. This is exactly the established fact. In 1999, the American David Wipple bought Hamburgger at McDonald's, put it in his coat pocket and forgot about it. What was his surprise when, after 14 years, he, taking a hamburger from his coat from his pocket, saw that he was fresh and did not spoil at all. ”

The history of David Wippla is also retold of resources such as Medialeaks, RTVI, The Epoch Times and others. Many of them clarify that Hamburgger remained fresh in appearance and six years later. This story is widely known for West. However, she is far from the only one. In 2016, users Shared photography not touched by the time of the six -year set of Happy Meal, and in 2020, the video has gained popularity in Tiktok About 24-year-old hamburger and potato Free from the same McDonald's company.

McDonald's periodically answer this exciting society. So on August 31, 2020, the following appeared on the official website of the company statement:

“The answer to the myth that McDonald's burgers do not decompose

In the right environment, our hamburgers, like most other products, can decompose.

But for decomposition, certain conditions are needed - in particular, moisture. Without enough moisture - both in food itself and in the environment - bacteria and mold cannot grow, and therefore the decomposition is unlikely. Therefore, if the food was initially dry enough or it has become one, mold, bacteria or decomposition will hardly grow on it. Homemade food subjected to dehydration can give similar results. Take a closer look: the hamburgers that you see are most likely dried and dehydrated and in no case are "the same as the day when they were bought."

The reality is that our hamburgers are made only from beef, 100% of the US Department of Agriculture. There are no preservatives or fillers in our cutlets, and the only thing that has ever been added to them is a little salt and grill pepper. ”

A similar explanation Curses And Dr. Kate Warriner, the program director of the Food Sciences Department and ensuring the quality of the Guelph University (Canada): “There are many videos and photos on the Internet that states that McDonald's hamburgers left for a long time do not rot due to the chemicals contained in them. In fact, hamburgers, Free potatoes and McDonald's chicken are similar to all products and rot if they are stored under certain conditions. In fact, microbes that cause decay are very similar to us in the sense that they also need water, nutrients, heat and time for growth. If we remove one or more of these elements, microbes will not be able to grow and spoil the food.

In the example with a hamburger from McDonald's during the preparation of the cutlet, it loses water that comes out as a steam. The bun, of course, is made of bread. When fried, the amount of moisture is reduced. This means that after preparing the hamburger is quite dry. If you leave it in an open form, this will lead to further water loss, since humidity in most buildings is about 40%. So in the absence of moisture or reduced humidity, the hamburger simply dries, and does not rot.

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So, in order to ruin the mcDonald's hamburger, we just need to prevent moisture loss. This can be done by wrapping it with a baking film or storing it in an environment with high humidity, for example in the bathroom (pay attention to the black mold that is found on the window of the bathroom, but not in the bedroom). If you try to conduct the same experiment with a home burger with the same moisture content as in the mcDonald's hamburger, and in similar conditions, you will probably get the same results. ”

Indeed, the results of the experiments do not contradict the conclusions of scientists and employees of the company. So, in 2019 on the site Serious eats An article appeared about the experiment, the author of which tried to create exactly the same conditions for ordinary home burgers and samples of McDonald’s products. As it turned out, both of them behave almost the same: they do not rot with dry air and open room, and in a closed package are decomposed in a few days. At the same time, judging by the weight, the loss of almost all of the moisture occurs in the first days, and then is slowed down.

The experiment described on the Russian site gave similar results "Rupor73", unless some kind of spinning of rotting of decay occurred. But for clarity, a video on which the camera captures a change in the condition of different products from McDonald’s for the same time:

From the foregoing, a rather transparent conclusion is worth it: the products from McDonald’s are far from unique in their survivability and behave about the same as any other hamburgers, including home ones. The main reason for the lack of decay is a rapidly leaving moisture. At the same time, individual cases that are often described on the Internet, obviously, are examples of creating the very special conditions that ensure this outcome. But the chemicals here, most likely, have nothing to do with it.