What contents does the red coloured square at the bottom of a toothpaste tube indicate?

Correct answer: Just part of the manufacturing process

Try the best trivia game

What people think about it: 2 Comments
Player #41081547
Player #41081547
There should be a better explanation to this process and it's various colors. Without having a real reason, there would not need to mark in different ways.
Paige
Paige
What the heck is the question? Better wording and applicable photo please and thanks.