View source for Dry sieve hash

A mechanical separation process which generally uses a variety of screens and agitation to separate the [[trichome]] from the plant material, dry sieve hash is also traditionally known as “[[kief]].” One of the oldest [[cannabis]] extraction processes, dry sieve can be traced back through centuries to the great Moroccan, Afghani, and Lebanese hash fields; traditional Lebanese blonde [[hash]] is in fact nothing more than pressed dry sieve. This method can be perfected to produce perhaps the highest-purity and most natural concentrate available (nothing but trichome heads), but generally, it is less pure than high-grade water hash or [[hash oil]] because it is more difficult to remove all of the plant matter. Quality dry sieve will generally test between 50 percent and 60 percent [[THC]], but the ultra-pure examples can have higher content.