How do they manage to put stripes in the toothpaste?!

Question: Sereously, how?

Answers: Sereously, how?

It's done during the filling stage, the paste is actually very firm at that point, and they mix a stream of dyed and un-dyed pastes into a single stream, then load it into tubes...

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How do they manage to put stripes in the toothpaste?!

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