Conclusions from results so far ...
1. The presence of salt does indeed appear to benefit in two ways
overall improved yield of white clean Purity Flakes
a greater concentration of Flakes from the first pull (first pull generally appears cleaner than later pulls)
2. However, too much salt thickens the bark/lye soup, and which appears to adversely affect solvent separation. Over-visosity seems to increase time taken for separation, reduce completeness, possibly increases the chances and severity of emulsions, and maybe even reduce the quantity of the flake material ransported into the solvent
3. Soup viscosity is not only increased by salt, but collectively by all other ingredients too so there appears to be an optimal balance for quantities of lye, salt, root, and water. More testing is needed in order to confirm our theories and fine tune the ideal ingredient profile.
Subsequent Undocumented Observations – As well as these tests, there is much anecdotal evidence that leads us to our current conclusions concerning the quantities of salt to be used. However, more head-to-head testing will help clarify things further.