Hello SunWukong, i only recently stumbled upon Nik's dew & salt method but have read lots of texts from other places where people have used dew in their work, i'm waiting for spring to begin collecting and start my first dew experiments as its still frozen here in the north, i started my practical alchemy working with u-rine and a few herb tinctures, after reading the Book of Aquarius and spending time reading the forum, it made great sense to use "our water" as a staring material as it already has an (energetic/spiritual) affinity for the person working on it but after spending time reading lots of other sources i think theres a more natural way to achieve a natural alkahest (isn't that what BOA is trying to make, a substance that will dissolve and putrefy silver/gold?)
than to use very high heat for many hours to destroy your matter.
So nature has the power to make it if you let her, so would a good rule of thumb be "if it can putrefy, it's alive"