run 20 km to churn your own butter. We have put it to the test
Just when I thought the culture of running I could no longer invent more excuses To go out and devour kilometers, the algorithm has decided to merge training with cooking recipes. To put you in situation, I was doing scroll calmly on Instagram and suddenly I came across what I consider the last barrier to fitness: runners that make butter while they run. They have named him the churning and burning (something like “stirring and burning”) or, simply, the butter runs. Can it be real? Apparently, yes. It all started in February of this year with American content creator Libby Cope and her partner, Jacob Arnold. In the video, Cope ask a simple question: “We Googled it and, as far as we knew, there were no previous runners who had successfully made butter. So we said… ‘Okay, shall we be the first?’” In it reel She is seen pouring a carton of liquid cream and salt into an airtight bag. “You might be wondering why,” Cope says to the camera. “The real question is: why not?” Since then, the phenomenon has exploded globally. A quick look at Instagram shows us an army of runners imitating the feat on accounts like saral.fit, margot_outdoor, lib_claire, rachlzw either alexladikoff. gonzo journalism Faced with such an avalanche of content, in Xataka We couldn’t sit idly by, but we didn’t want to get dirty either. So we turn to our hero without a cape: my partner Javier Lacort. Javier, always willing to sacrifice his sports team for investigative journalism, accepted the challenge without blinking: “I’ll do it,” he said. We owe him, at the very least, an eternal breakfast. The conditions of the experiment were the following: Javier went out into the street to run 20 kilometers with an entire 500 ml brick of liquid cream on his back. The weather: clear skies, 51% humidity and a temperature of 13ºC, although with a treacherous thermal sensation of 8ºC. My partner opted for a pragmatic and very much our approach. While American pioneers recommend using airtight bags Ziploc heavy-duty, Javier simply poured the liquid cream into a regular plastic shopping bag. With a few secure snap knots, he placed it directly into the pocket of his hydration vest. The goal was to see if the force of the impact over 20 kilometers would be enough to whip cream. But, before seeing the result, what does science say? How does running turn a liquid into a spreadable solid? As detailed by the Food and Agriculture Organization of the United Nations (FAO), the principle is pure physics: The constant churning process causes the fat globules present in the cream to collide, clump together and end up separating from the remaining liquid, known as whey. Come on, the same thing they did nomads centuries ago by galloping with milk sacks hanging from their pack animals, only now the pack animal is wearing carbon fiber slippers. Today, the runner It’s the human mixer. However, the results vary greatly. Get butter depends on several factors: the distance (most run between 5 and 10 kilometers), the intensity of the stride (the more bounce, the better) and, fundamentally, the percentage of fat in the cream used. The process and the verdict Javier completed his 20 kilometers and, after leaving his vest on a park bench with the air of having survived a true dairy odyssey, the verdict was clear. Upon opening the bag, he confessed: “It smelled wonderful, honestly.” In the images that he gave us of the process, the evolution can be clearly seen. After 20 kilometers of impact against the asphalt, the macro photos reveal that, without becoming a solid and consistent block of butter, the cream had been whipped and presented a lumpy and thick texture. Why did Javier get a thick whipped cream texture instead of a block of butter like those on TikTok, despite having run a considerable distance? The answer is in the weather. Scientific American magazine has the key: Temperature is crucial. If it is too cold, the fat molecules harden and fail to group together to form solid clumps; if it’s too hot, the mixture turns into soup. The ideal temperature is room temperature. With a thermal sensation of 8ºC, Javier had the thermometer against him. In fact, other runners who attempted the challenge on snowy days failed in the same way. Given what has been seen, for those who want to replicate it, the pioneers leave some vital advice. Libby Cope recommends running for at least an hour, using cream with 35% fat and, as a rule of thumb, always use an airtight “double bag” to prevent your back from ending up looking like a clandestine cheese factory. Other users recommend loosening the hydration vest a little so that the bag bounces more, or choosing routes with hills, stairs or uneven terrain. And the vital question: is this edible? The short answer is yes. In fact, eating it has become the official goal of the race. The challenge has generated a small post-workout ritual: open the container to check if there is butter and spread the fresh result on a piece of bread as a snack recuperator. It’s the perfect ending to the social media video. Culinary creativity has not taken long to appear. One of the runners, Irene Choi, is no longer satisfied with the basic recipe, but rather practices he habit stacking (stack habits) creating flavored butters. They add sea salt, herbs de Provence, garlic or even honey before going for a run. Choi went so far as to make a “honey butter and corn juice” that he called “an excellent use of my time.” From a more cynical (and brilliant) perspective, columnist Emma Beddington reflects on Guardian about the phenomenon: “The couple (Libby Cope and Jacob Arnold) now have more butter than they know what to do with. Do they even know how much butter costs these days? Let them sell it!” Beddington jokes that this trend fits perfectly into … Read more
