metric to non-metric conversion?

This was discussed three years ago and the conversation never went anywhere.

I see the conversion button residing in the summary table, just after the Yield row. The left column would say "Measuring system" and the right column would contain a submit button whose text said either "Convert to Metric" or "Convert to Imperial", depending on the current state of the module. The ingredients list would change much as it does now when the Yield table is used.

A lingering problem, however, would be that the temperature most often resides as plaintext in the Instructions field.