// Definition
A small-scale ice water extraction run performed to evaluate a cultivar's hash-making potential before committing to a full production wash. Test washes reveal trichome quality, yield estimates, and melt characteristics of a given variety.
// From the Episode
Bubbleman demonstrated a test wash of Band-Aid Haze at Canifest, showing the glassy quality of the resulting hash. Test washes are essential for hashmakers to determine whether a cultivar is worth washing at scale, as not all varieties produce quality full-melt hash.