A short video revealing how plastic suitcases are made has taken social media by storm – mainly because people can't get their heads around the bizarre process.

User @Kinglrg_ shared the post on Twitter, writing: "I don’t know how I thought suitcases were made but this wasn’t it".

The behind-the-scenes clip in a suitcase factory shows the plastic being blown into large bubbles – and then dropping back down to instantly form the suitcase, all within a matter of seconds.

This is repeated across multiple different suitcase patterns and colours – and social media users have been blown away by the process.

"My mind genuinely cannot comprehend what is happening here and i don’t like it," one wrote, while another added that the effect is "like magic". 


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So, how does it actually work?

The process is called vacuum forming, and it's quite commonly used when creating plastic objects.

A hard sheet of plastic is heated up, to the point where it's soft but not quite melting.

At this point, air is blown upwards under the plastic sheet, causing it to stretch and form a large bubble.


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As the plastic stretches, a suitcase-shaped mold is placed underneath (this is usually made of steel or aluminium). The air is sucked back in just like a vacuum, causing the plastic to fall back down and tighten around the mold.

The plastic sets instantly and is removed; voila, a suitcase is formed, with the whole process taking just a matter of seconds.

The video has proven a hit on social media, garnering over six million views in less than 48 hours.

But it's not just the fascinating science which has enthralled viewers.

A number of users admitted that they had watched the video mainly because it was so mesmerising, describing it as "hypnotic" and "oddly satisfying", with one person asking: "Why's this so relaxing to watch?".

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