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by signal_space 2531 days ago
The issues with mason jars and ceramic cup ends up being the amount of energy required to fire the oven. This ends up putting you in a deep hole when it comes to accounting energy inputs, as consumer plastics are essentially repurposed refinery waste.

This leaves you with the choice to either spend a lot of energy or risk environmental contamination. Chemical accounting ends up being a nontrivial problem to address.