>That is, unless it's not really a technical problem.
It isn't. This has the same problem as all the other solar sterilisers, it says "I'm poor." People are empirically not willing to use these things. You'd probably be better off with a public education campaign to normalise their use, something objectively ridiculous like having middle class families that actually have decent running water doing it, visibily and publicly.
It isn't. This has the same problem as all the other solar sterilisers, it says "I'm poor." People are empirically not willing to use these things. You'd probably be better off with a public education campaign to normalise their use, something objectively ridiculous like having middle class families that actually have decent running water doing it, visibily and publicly.