Talks to Watch

Experiment: Coca Cola and Drain Cleaner

2.7M views · May 23, 2019 · 1:31 · 1 HN recommender · 4 mentions · discussed 2020–2021

A short experiment dissolving the aluminum of a Coca-Cola can with drain cleaner to reveal the clear plastic film lining inside.

Why Hacker News points people here: Cited as a vivid demonstration that beverage cans have a plastic liner.

“Great video here”HN comment, 2020

What Hacker News said 4

RecommendsBostonEnginerdMar 2020

“Great video here”

Shows can liners and reaction with aluminum.

Full comment

They use a thin plastic liner to prevent reaction with the Aluminum. These will burn off when the Al is melted for recycling. Great video here: this video

in “Industry spent millions selling recycling, to sell more plastic” · view on HN
Cites itMauranKilomJan 2021

“Here's a demo with a Coca Cola can”

Demo of Coke can reacting with drain cleaner.

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Here's a demo with a Coca Cola can: this video Basically, you don't want any funny reactions with the metal.

Cites itevv555Dec 2021

“this is what a dissolved coke can looks like”

Shows what a dissolved coke can looks like.

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Most metal food containers are coated with plastics like BPA. You can't trust "BPA free" labels because there are now analog compounds in use. For example this is what a dissolved coke can looks like.[1] 1. this video

in “Lead exposure from routine consumption of coffee and tea from ceramic mugs” · view on HN
Cites itnonfxnlDec 2021

Shows can liner, compared to paper pen refill.

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The (possible) patent has some good details ( link ) > The ink storage pipe includes an at least two-layer structure of an inner layer in contact with ink and a base layer, the base layer being formed of a paper base material and the inner layer being formed of a resin. The resin is preferably an acrylic resin, polystyrene, a fluorine resin, silicone or a mixture thereof. > In case of applying a resin film, the inner layer 4 has a thickness of typically 3 to 90 micrometre and preferably 5 to 60 micrometre. This honestly seems like the coke cans ( this video ). In any case, this should be easier to recycle than the cans.

in “Uni-Ball Develops the First Paper Pen Refill” · view on HN