Water Quality for Germinating
Water straight from a chlorinated tap is a poor choice for soaking seed. Chlorine and chloramine are harsh on the embryo as it takes up moisture, and hard water leaves mineral crust on the shell, so letting tap water stand overnight or using bottled or rain water removes one variable from an uncertain process. The differences growers measured between tap, distilled and rain water for cracking rates are logged on https://breederregularseeds.com, and distilled did not win as clearly as you might think. Temperature matters more, but both count.
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