Experiment: Coca Cola and Drain Cleaner
Why Hacker News recommends it
Cited as a vivid demonstration that beverage cans have a plastic liner.
What it is
A short experiment dissolving the aluminum of a Coca-Cola can with drain cleaner to reveal the clear plastic film lining inside.
Recommended by 1 HN commenters across 1 different months, 2020 to 2021.
What Hacker News said
Recommends BostonEnginerd · 2020-03 · on “Industry spent millions selling recycling, to sell more plastic”
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]
Cites MauranKilom · 2021-01 · on “Aquafaba”
Here's a demo with a Coca Cola can: [this video] Basically, you don't want any funny reactions with the metal.
Cites evv555 · 2021-12 · on “Lead exposure from routine consumption of coffee and tea from ceramic mugs”
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]
Cites nonfxnl · 2021-12 · on “Uni-Ball Develops the First Paper Pen Refill”
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.