// Definition
A solventless extraction method using ice water to freeze and separate trichome heads from cannabis plant material. The mixture is agitated, and trichomes are collected through a series of mesh filter bags of decreasing micron sizes, producing grades from cooking hash to full-melt quality.
// From the Episode
Bubbleman, inventor of the bubble bag method, discussed water hash across multiple episodes. In Episode 013, he mentioned doing the first water hash with certain techniques. The method was compared to dry sift throughout the series, with the panel debating fresh frozen versus dried material approaches.