imo grind it to dust ! Physically open every grain of wood in that there tree bark ! But then do an acid-base extraction and filter it well.
I obviously feel that one ought not to pulp-mill the MHRB - that's a different way of 'getting at' the dmt - to chemically 'grind' it.
I feel that the physical act of pulverizing the MHRB in a coffee grinder is a large portion of the work and energy required to enable you to get the dmt out, nice and pure. I bet grinding can be up to ~90% of the energy needed, and the rest is energy of solubilizing the dmt, that ocurrs at a molecular level, in a watery, acid, solution where the energy of hydrogen bonding to the +charged dmt molecule, separates it out into protective hydration shells.