Have you ever heard the rumor before that the same amount of liquid fits into different-sized Starbucks cups?

The rumor began with a guy named Sueco posting a TikTok video where he said the coffee colossus has been cheating customers. He loaded a tall Starbucks cup with coffee and then poured it directly into a grande cup and it not only filled it up but overflowed it.

He then showed viewers that the same amount of coffee also loaded up the venti cup.

Take a look at the video.

@sueco @Starbucks ♬ Salt – Sueco