Quote Originally Posted by Graywolf
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You can never get all the trichomes using dry sieve or bubble techniques, without beating so much green plant material into it, as to make it harsh and unpalatable by conventional standards.

If your heart is set on hash, we typically dry and freeze the material that we wish to harvest intact trichomes from and run it through our home made vibratory sieving unit, for 3 to 5 minutes, until it removes approximately 10% trichomes by weight, and then extract the remaining cannabinoid resins using butane or ethanol.

For bubble hash, we also freeze it to -32C/0F and pre chill the ice bath before a 20 minute run in a mini washing machine.

Almost all of our extraction is from cured material, but you don't have to dry your material to remove the trichomes by dry sieving or ice water extraction, if you freeze it first and keep it that way during processing.
I haven't really seen any harsh and unpalatable traits in the bubble hash that myself and others have been making. I find the butane or ethanol products to be harsh and unpalatable. Some folks are cleansing the products created in this manner to make them more palatable but it is another complicated chemical process that removes most of one kind of impurities while leaving another supposedly more benign behind.

You appear to have a lot of technical information on the subject but I don't know how you came up with such a bad opinion of bubble hash.