Biodynamic preparation 507 (valerian)

Extract

Highly concentrated extraction of the plant material in a solvent (water, alcohol or oil), using a much higher plant-to-solvent ratio than a simple maceration, and often a longer contact time. The result is a very concentrated liquid, meant to keep for a long time and always be used diluted, unlike the other techniques prepared for more immediate use.

Process summary

1) Finely chop or crush the plant material, using a high proportion relative to the solvent (more plant matter than in a standard maceration). 2) Fully cover with the chosen solvent (water, alcohol or oil) in a closed container, opaque or kept in the dark. 3) Let it sit for several weeks, shaking occasionally. 4) Strain, bottle in a sealed container and store cool and dark — always use diluted, never undiluted.

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