Ask the Perfumer is open for today, so ask all your natural-perfume-related questions.  I can also answer questions that apply to mainstream perfumery, if you keep it in the technical area, like weighing, specific gravity, etc.

PS:  In case you missed it, I posted two podcasts on https://perfumeclasses.com/podcasts.htm - more to come.

PPS:  I also started a Facebook page for my online perfumery course https://www.facebook.com/pages/Study-Perfumery/280777102473 - join it to receive timely updates.