Use a water bottle in stainless steel: safe to drink from and to wash, not really heavy, and keeps the temperature. Stainless steel is for reusable containers, but I’m not sure you can recycle it easily and efficiently. It’s also a bit expensive.
Glass is infinitely recyclable but it needs a lot of energy to be produced and recycled (you need to heat it a lot), is fragile, relatively expensive, and a lot is needed to make a good container, so it gets heavy, which might outweigh the positives sides it has.
Glass, stainless steel I guess.
Use a water bottle in stainless steel: safe to drink from and to wash, not really heavy, and keeps the temperature. Stainless steel is for reusable containers, but I’m not sure you can recycle it easily and efficiently. It’s also a bit expensive.
Glass is infinitely recyclable but it needs a lot of energy to be produced and recycled (you need to heat it a lot), is fragile, relatively expensive, and a lot is needed to make a good container, so it gets heavy, which might outweigh the positives sides it has.
Also ceramics, it has most of the problems of glass but not as easily recyclable.
See for example roman amphores that were basically single-use
But it can be cleaned, right?