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Thank you for your input. I used the IPA only for the first pull, it will be evaporated completly, remains will for sure be redissolved in PGA. I did first freezing already, did not get much out. Now letting half of IPA evaporate, doing a second freezing on it. I was just wondering if there was...

Hello dear ECF community, this might be my first post, but I have been reading along for years. I recently did a 99% IPA extraction from my self grown nicotina rustica. Before soaking I froze the fresh leaves slowly to break the cell walls (very successful, I could spot the effect on the later...