F-
SWIY would want to avoid any heat at all, to avoid inversion of the D- compounds to the D-iso compounds.
A little may not do MUCH harm, but as my esteemed colleague pointed out, SWIY doesn't have much to work with.
If a reflux is yearned for, perhaps use a lower-boiling solvent, i.e. SWIC's current favorite, tetrachloroethylene.
Also, note that this solvent DOES NOT contain any free chlorine to ruin the alkaloids, nor does it release any during extraction.
OTC in the USSA (sic) and Canada, it comes in a can with one other ingredient, CO2. Product name sounds like "Steak, lean". Used to clean brake parts. Make sure to get the one with no surfactants...
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