I've done blender and bubble hash. Blender has is a cold water/ice extraction method, same as bubble hash, but on a smaller scale. But dry ice extraction seems to be the best way. I've seen some that Jackal made it it was super clean and almost 100% effective in removing the trics. I've scoped my bubble hash and was surprised to see how many trics were still left on the vegetable matter, even after going though all 5 bags.