45 People Are Sharing Common Knowledge Facts They Learned From Their Jobs, and We'll Never Think of These Professions the Same Way Again

This article appeared in sneakertoast.com and has been published here with permission.

Every profession has elements of that career that are incredibly obvious to those who work in it — and totally foreign to everyone else. Thanks to social media, you don’t need to study a specific trade or spend hours on the job to learn what the experts are already aware of. These professionals have shared the facts that everyone in their field knows, and our minds are blown!

Caffeine’s Colors

The next time we go to Starbucks, we're definitely bringing a color wheel to aid us in ordering our coffee, so we end up with just the right amount of caffeine.

A Reddit user kindly elaborated on this common knowledge amongst baristas by saying, "The reason dark roasts taste bitter is not because it has more caffeine, but because it's burnt and that's just how ash-water tastes. Heat destroys caffeine, so darker roasts have the least caffeine of all."

Support Small Businesses

Well, we know what kind of deli we're going to next! Really, this makes perfect sense as the mom-and-pop type stores' employees will likely care more about the place, know the customers personally, and simply have more time to clean.

Regarding the latter bit, that's not a dig at supermarket employees - we're just saying they're under a lot more pressure to move customers along quickly. People who go to smaller shops, however, usually don't mind chatting with the staff while they wait for their purchase to be ready.

Toothpaste for Breakfast

Okay, we know you're probably thinking, 'Thanks for the knowledge, but I'm not going to walk around with toothpaste in my mouth all day,' but hear us out! The trick is to still spit out the excess toothpaste, just don't use more water to do it.

No, you won't have toothpaste dripping out of your mouth that way, and there's really no difference in taste than when you brush your teeth and then rinse. Try it once and see!

Fair Enough

Before anyone gets upset at this one, we'd like to remind them that the OP wasn't talking about working in an expensive five-star restaurant.

Truthfully, if you're opting for fast food, you should be aware that it's not going to be particularly fresh, healthy, or even sanitary - depending on the place. If you just need something quick and cheap while you're on the go, this is what it is. Let's all save ourselves the trouble of pretending it's going to be fresh.