This Hack Will Teach You How To Tell The Difference Between Coke And Diet Coke

Diet coke vs. Coca-Cola taste

Soda might not be the healthiest thing you can drink, but sometimes, you just get a craving for it. When you’re really thirsty and you just want an icy-cold carbonated beverage, even if it is just a whole lot of sugar in a glass, few things can taste better than the exact soda you’ve been thinking about. A glass of Coca-Cola poured over ice on a very hot day or paired with a cheeseburger? Yes, please! But no matter how satisfying that can be, one thing is for sure: if you end up drinking the wrong soda, one you don’t like, it can be very disappointing.

A lot of soda drinkers will agree that they either love regular Coke, or they only drink Diet Coke. The difference in taste is extremely obvious, and for those who don’t like Diet Coke, taking a big ol’ gulp of it when you’re really thirsty can be kind of disgusting. It’s just not what you want! But, hey, it happens to the best of us — we don’t realize that a cup is full of Diet Coke, because Coke and Diet Coke look exactly the same when poured into a glass. So…it is totally impossible to tell one from the other? Actually, no. If you want to learn a trick to figure out which is which without subjecting yourself to a taste test, there’s a hack out there that can help you do exactly that.

Okay. So, how can you tell the difference between Coke and Diet Coke without tasting it?


According to a Delish writer, these two sodas actually don’t look quite as identical as you thought they did. If you give them a closer look, you’ll notice a big difference that you’ll never be able to forget.


Delish says that classic Coca-Cola is lighter in color than regular Diet Coke. She backs this up by saying she has six years of experience as a professional waitress, and has been looking at different sodas for that long.

Sounds pretty legit — and it could help you solve all your problems! Except, unfortunately, it isn’t always accurate.


According to Delish, this trick only works with fountain soda: “We tested the soda from bottles and the difference in color is not as apparent.” So if the soda has been poured out of bottles, it won’t look any different in color.

There are other ways to tell the difference between Coke and Diet Coke though.

In an old Reddit thread, one user says, “Put a light coating of the drink around the outside of your mouth and let it dry for a few seconds. Your lips will stick together if it’s real sugared coke.” Probably you’ll taste the regular Coke regardless of the experiment, but whatever.

Another user suggested something similar, saying, “I simply dip my finger in and rub it gently with my thumb until it starts to dry. Sugar is sticky, artificial sweeteners are not.”


Another person said that they can smell the difference. While they don’t expand on that, it would definitely make an interesting experiment.

One Twitter user said the way the bubbles fizzle is even different:

Oh, and it would be great if restaurants could stop trying to serve one over the other thinking customers don’t notice. We notice!

A lot of people on Twitter feel like regular Coca-Cola is the best one. Like this person:

Some people just can’t believe that there are people out there who can’t taste the difference. It is pretty crazy, to be honest.

And some people pride themselves on their tasting abilities!

Just something to think about the next time you’re drinking soda and you’re bored!

And remember: check out the color, the way the bubbles fizz, the smell, and how it feels on your skin. Good luck!

Did you like it?

How useful was this post?

Click on a star to rate it!

Average rating 4.5 / 5. Vote count: 498

No votes so far! Be the first to rate this post.

Leave a Reply

Your email address will not be published. Required fields are marked *

Related Articles


Enjoy Your $19.99 FREE Copy of Our Digital Cookbook!

Enjoy our FREE Digital
Cookbook as Our Way of
Saying Thank You!

I agree to the storing and processing of my personal data by So Yummy as described by the Privacy Policy.

Get your So Yummy Cookbook digital copy - for Free!

Enjoy surprising, smart and absolutely gorgeous home cooking recipes & tips

Thanks for subscribing!

Your Cookbook Awaits in Your Inbox