1. Kit Kats are made with broken Kit Kats. BuzzFeed Kit Kats that get damaged during production are crunched up into a Kit Kat paste and given a second life as the inside of future Kit Kats.Learn more: I Just Found Out What's In A Kit Kat Bar And Honestly? It Surprised Me. 2. The white gunk on salmon is actually protein, not fat. @realfoodcoaching / Via instagram.com The foamy white waste is actually a harmless soluble protein called albumin. As America's Test Kitchen explains, "When the muscle fibers in the fish are heated, they contract, pushing the moisture-filled albumin to the surface of the flesh."Learn more: Here's The Truth About The White Gunk On Salmon 3. Green, yellow, and red bell peppers are the exact same vegetable; they're just at different stages of development. Getty Green peppers actually ripen into yellow and orange peppers, which then eventually turn into red peppers. (Some peppers just ripen to yellow or orange, but still, they start out green.)Learn more: I Just Learned The Truth About Bell Peppers And WHAT THE HELL? 4. The difference between Pepsi and Coke comes down to a single ingredient. Flickr/Matt Kangas / Via flic.kr In a passage from his 2005 book Blink, recently resurfaced by Foodbeast, Gladwell explains the difference between the cola rivals in a single sentence: "Pepsi is characterized by a citrusy flavor burst, unlike the more raisiny-vanilla taste of Coke." TL;DR: Pepsi has citric acid, Coke does not.Learn more: This Ingredient Is The Only Difference Between Pepsi And Coke 5. La Croix water is flavored with "essence," a clear, concentrated natural chemical derived by heating the skins or rinds of fruits. Pixelpot / Getty Images A Wall Street Journal article describes the chemical as vapors that are “captured, condensed and eventually sold by the 55-gallon barrel.” Learn more: I Just Found Out What LaCroix's "Natural Flavor" Is And I'm Delighted 6. Washing raw chicken is pretty much useless — and you shouldn't do it. Studio-annika / Getty Images According to the USDA, you should not wash raw poultry or any other meat, because you may spread potential bacteria in the poultry juices to other foods, utensils, and surfaces.And in fact, washing it isn't even getting the bacteria off your chicken. Even though you may think that washing your chicken removes bacteria or harmful slime, "some of the bacteria are so tightly attached that you could not remove them no matter how many times you washed it," USDA spokesperson Marianne H. Gravely told BuzzFeed Food.Learn more: We Asked Experts Whether Washing Raw Chicken Was Legit Or Useless 7. Butter should be stored in the fridge, not at room temperature in a butter dish. Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Biem via Wired / Via wired.com According to FDA spokesperson Peter Cassell, leaving your butter in warmer temperatures puts it at risk of "increased rates of oxidative rancidity, which leads to the more rapid development of an unusual or unpleasant flavor." On the other hand, refrigeration both preserves the shelf life of butter and "reduces the growth rates of spoilage microbes which might be present."Learn more: 8 Food Safety Facts That’ll Make You Breathe A Sigh Of Relief 8. This is how cashews grow. Daniellauziere / Getty Images It's composed of two parts: the cashew apple (the fruity, colorful part) and the cashew nut (still encased in the shell). To harvest it, you first remove the nut from the fruit. After you dry, steam, and hand-crack them, you remove the actual cashew from its casing. Learn more: The Way Cashews Grow Is Mildly Shocking If You've Never Seen It Before 9. Mountain Dew is made of mainly orange juice. PepsiCo / Via pepsicobeveragefacts.com So... Does this mean it's okay to have soda for breakfast?Learn more: 27 Random Food Facts That Will Fuck With Everything You Know 10. This is how brussels sprouts grow. Gomezdavid / Getty Images This is triggering.Learn more: If You Already Know How Brussels Sprouts Grow, I Don't Recommend Reading This Post 11. Most oysters you eat are actually alive. Bonchan / Getty Images SafeOysters.org recommends checking oysters before you eat them: "If shells are open, tap them lightly with your finger. If the shell closes, the animal is alive and safe to buy. If the shell is gaping open or does not close after tapping it, the animal is dead and may harbor high numbers of bacteria which can make you ill."Learn more: OK, This Fact About Eating Oysters Will Probably Shake You To The Core 12. All the different colors of Froot Loops have the exact same flavor. Rosana Prada / Flickr / Via Flickr: zanastardust I still think the orange ones taste the best.Learn more: 19 Totally True Food Facts That'll Make You Say "That Can't Be Right, Can It?" 13. Loofahs come from gourds. Sarawutnam / Getty Images Sponge gourds and luffa gourds, to be specific.Learn more: Today I Learned Where Loofahs Come From And I Need To Share This Information 14. The famous TJ's peanut butter pretzel is created via a "marvel of food manufacturing." Ecummings00 / Getty Images According to an NPR article: The pretzels are created via a process called co-extrusion, invented in the 1980s. "Basically, an outer tube pumps out pretzel dough, while an inner tube pumps out peanut butter filling onto a conveyor belt," NPR explains. "The whole thing is then sliced up and baked in a giant 100-foot oven."Learn more: 19 Secrets About Trader Joe's That'll Make You Go "Huh" 15. Graham crackers were invented to prevent sexual urges. Ryan Mackay / Getty Images Back in the 1830s, its creator, Reverend Sylvester Graham of Connecticut, preached that a bland diet could curb sexual appetite.Learn more: I Just Found Out Why Graham Crackers And Corn Flakes Were Invented And My Sex Life Will Never Be The Same 16. Parmesan cheese is not vegetarian. Fudio / Getty Images Authentic Parmigiano Reggiano is created using calf rennet, an enzyme used in the process of coagulating milk to turn it into cheese — usually found in the lining of calves' stomachs.Learn more: I Just Found Out Parmesan Cheese Isn't Vegetarian And Basically My Whole Life Is A Lie 17. For more Best of 2017 content, click here!