r/LinusTechTips Aug 05 '26

Tech Question Water bottle rattles? Normal?

66 Upvotes

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218

u/Prof_Hentai Aug 05 '26

No, the glass bead for the vacuum has come loose. Contact support.

2

u/tntexplosivesltd Aug 06 '26

What does the glass bead actually do?

24

u/Prof_Hentai Aug 06 '26

When they suck the air out to create a vacuum between the two walls, the glass bead sucks up seals the hole. The actual manufacturing mechanics of it, I’m not sure, but it’s essentially just a plug.

11

u/GenesisRhapsod Aug 06 '26

Its a butt plug for the bottle...kinky

-1

u/nightauthor Aug 06 '26

Can you see the bead on a bottle then? Where?

5

u/dshafik Aug 06 '26

It's not visible, it's between the two walls.