i&#x27;m going to ignore the financial costs until a direction has been settled so your point would be an optimisation problem in regard to environmental effect<p>ie. what&#x27;s less damaging?  pacific garbage patch or truck diesel emissions?<p>if i had to dream up a bottling system now my interest would be in resource renewal.. mainly biodegradable substances<p>perhaps a waxed paper? i&#x27;m unsure what the weight costs would be on paper versus plastic, and i&#x27;d also want to investigate environmental effects of cans