Comment on Can acidic and carbonated drinks corrode aluminium bottles?
AlecSadler@sh.itjust.works 1 year ago
Certain types of beverages can definitely cause some types of cans to erode, yes. You’d have to know whether or not your aluminum bottle has an interior lining or not. There are also different types of linings.
Unfortunately, I only know these things from a friend who works in the canning industry so I can’t speak to them with any degree of detail. But some manufacturers get their beverages tested and then have to can them in certain types of cans for that reason.
thonofpy@lemmy.world 1 year ago
I have a Quechua bottle that looks slightly yellowish/golden on the inside. Might that be some sort of lining?
skillissuer@discuss.tchncs.de 1 year ago
that’s probably just anodized aluminum (not lining)
finestnothing@lemmy.world 1 year ago
The yellowish color isn’t lining, lining is only in aluminum cans because it’s cheaper and easier than using thicker aluminum and is usually clear (unless stained). The lining is what gives the cans structure, usually made of epoxy and/or bpa plastic. Without the lining, you can tear a soda can like double thick tin foil. No need for lining in a steel bottle.
The yellow/golden color on the inside of your bottle is just the metal being stained. Stainless steel isn’t really stainless, just harder to stain because the chromium in it forms its own layer of oxidation that protects from being directly touched. Best guess is that the lemon you put in your water breaks down that oxidation layer before you can drink enough, then the lemon and vitamins/minerals/coloring in the tablets stain the metal
schmidtster@lemmy.world 1 year ago
This is completely false. The lining is so the metal can’t be broken down by whatever is in it. Without it contaminants can leach into the product, or even dissolve the can.
skillissuer@discuss.tchncs.de 1 year ago
in some cosmic sense yeah there will be equilibrium after some time but most of the time it’s just called “corrosion”