3 ms·

Not world-changing, but self-heating coffee/cocoa cans! I remember getting these 15 years ago at Walmart and thought they were the coolest thing ever, but they

Not world-changing, but self-heating coffee/cocoa cans! I remember getting these 15 years ago at Walmart and thought they were the coolest thing ever, but they never really took off.

q_andrew 3y ago
My guess is that their dubious disposability works against them. You can get self-heated coffee and ramen in a lot of Japanese vending machines, which makes sense because Japan is the capital of non-biodegradable disposables.
Apreche 3y ago
Other countries have these all over.