We’ve shared some great videos in the past of interesting tea sellers who have quite the ritual when it comes to making their brews.

Called Teh Tarik - AKA Pulled Tea - the Southeast Asian speciality sees tea brewed from pot to pot which gives it a wonderfully thick frothy top.

We’ve marvelled at a number of sellers as they show off their moves, now, with this video from The Science Channel, we can actually see exactly how the process works.

In the quick video a group of scientists explain how centrifugal force and gravity are both at play when the sellers are making the drink.