You have the same problem with plastic. Recycled plastic may not be food safe, and have contamination from whatever it was used for before recycling.

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nandomrumber a day ago | parent | next [-]

New plastic doesn’t have that problem and is incredibly cheap.

Take price as a proxy for resource / energy input and see that new plastic is also incredibly lite on inputs.

New plastic may have some off-gassing / contact contamination concerns though.

Last time I checked, energetically we’re better off using plastic over paper or recycled plastic, and burying the waste… if we could do that reliably, which we don’t seem to be able to.

	▲	mapt a day ago \| parent [-]
		There are several separate problems here. One is "People don't like bags stuck in the branches of trees and clogging waterways in their parks". Lightweight plastic shopping bags are so thin that a light breeze can pick them up and loft them up into the air easily. They cost approximately nothing - <2 cents retail, significantly less in bulk. It is incredibly expensive by comparison to pay someone to remove them from tree branches and riparian zones - tens of dollars in wages, equipment, and liability insurance. This is a pragmatic reason why municipalities passed bag taxes or bans. Forcing people to use paper or heavier-weight plastic bags that don't blow in the wind, even if they're not in practice "reusable", solves this one. Taxing them 5 cents or 10 cents or 25 cents per bag nudges a high percentage away.

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lupusreal a day ago | parent | prev [-]

About a year or so ago, somebody in the chain of suppliers of plastic PET bottles for seltzer water, used by several different brands, switched to a recycled plastic with a distinct dark tint to it. Immediately obvious because the product, water, is obviously clear.

My family returned six cases of 15 bottles each to Costco, then found that the other brands at local stores were the same way. A couple of months later the bottles went back to normal. I still wonder if they switched back due to customer rejection of the new plastic, or if they found the new plastic was in some way leeching contaminants.