There is no plastic in the fluid/material path of either machine - it's virtually all stainless steel and silicone. Basically the only plastic on them is in the switches/electrical parts where is is almost impossible to avoid.
I think the plastics we have noticed to be harmful are only the ones that are the most obviously biologically disruptive or carcinogenic. Not sure anyone building anything now can confidently say that the plastic they're using won't be a problem later on.
I'm also slightly skeptical of aluminum when in contact with acidic fluids but that's a whole different thing.
Btw, is it Turbina or Oculo? Chart and shop say Oculo, bit it's Turbina elsewhere.
Anyway, good job!
What is it you are actually trying to avoid? Is it petroleum-based plastics that are the problem? Thermoplastics? Something else?
That's very cool.
When taking into account the power brick, what percentage by weight/volume is plastic? 5%? 10%? That's the number you should be advertising.
One extra thing about plastic that's more pernicious - under heat it breaks down into microplastics and nanoplastics that are awful for our bodies. A lot of research has recently been published about this in 2024.[1][2][3][4][5][6] It seems like we're just beginning to prove it. I keep track of this by watching Mike Mutzel[7] on YouTube, which I recommend to anybody interested in the topic
Does the water touch plastic in any part of the machine?
1 - https://www.nejm.org/doi/full/10.1056/NEJMoa2309822 2 - https://www.researchgate.net/publication/385827603_New_insig... 3 - https://particleandfibretoxicology.biomedcentral.com/article... 4 - https://pubmed.ncbi.nlm.nih.gov/38890513/ 5 - https://www.pnas.org/doi/10.1073/pnas.2300582121 6 - https://www.nejm.org/doi/full/10.1056/NEJMoa2309822 7 - https://www.youtube.com/@Highintensityhealth/videos