this post was submitted on 02 May 2025
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If I had to choose glass or plastic, I am always choosing glass. Glass is such a good material. It is infinitely recyclable, the bottles can be reused for several years, and if they are buried they don't release microplastics.
I jump for situations where the glass is taken back for wash and reuse. Its the most sensible thing. I swear I had heard about restaurants doing this with containers but I never actually encountered one. So they had perm togo containers they took back and washed.
That's what we have here in Czechia, it is called Rekrabička.
It depends on which aspects of the environmental impact you're looking at, as melting glass to recycle it can be much more damaging than landfilling several plastic bottles if the glass furnace is heated by fossil fuels. If glass bottles are washed and reused, they're much better than plastic, but that's rarely what happens.
The cleaning was common back then. Every store took back the tall glass bottles of soda and in modern times oberweiss brought that back with milk. The glass melting is nice just as a final option really.
That's reuse, not recycling. Glass is much more suitable for reuse than plastics as it's longer-lasting and can withstand temperatures hot enough and cleaning agents strong enough to ensure it's food-safe after being collected, but you need quite a bit of infrastructure to get the bottles back to the company whose products they're for. At least for the parts of a bottle's life that the manufacturer's responsible for, it can be much cheaper to make fresh plastic, and if they can externalise the environmental cost of disposing of a plastic bottle (i.e. blame the consumer), it can look better for their carbon footprint etc., too.
yeah I was not limiting my comment to recycling just about how we don't really need to be using plastic everywhere and how things were pretty fine in the 70's where you only saw plastic in a few use cases.
Gas is used to heat up glass furnaces most of the time. But it is possible to use elctricity aswell, which is more and more sources from either solar or nuclear.
Not saying it is greener than plastic when it comes to electricity and shipping.