Hello all,

Swim has been extracting with noman's tek but has been using heptane instead of naptha for the entire process and precipitating in the fridge to get some pretty good-looking medium size pure crystals on the first go(no recrystalization needed). Swim wonders though if there is a way to get bigger crystals without evaporating the heptane to conserve it but still using something along the line of freeze precipitation.

Thoughts?

Yes, every hour or two, alternate the container between fridge and freezer, and between fridge and room temperature. When the temperature goes up, the smaller crystals dissolve first, and when you put it to a colder place, the new crystals tend to form on top of the bigger crystals that are already form, so you get nicer crystal formations. The more times you do this, the nicer crystals you will get

Gracias Endlessness,

I will give it a try the next time some spice decides to extract itself