I suggest you crush it as finely as possible, which will result in exposing more meth to the acetone. After I've stirred it for a minute I set it in the Freezer to settle, then I decant it or pull it off with a pipette. Using.a seperatpru funnel
You would buy acetone from the hardware store , then add a bunch of drying agent (oven baked anhydrous magnesium sulphate), let sit for about an hour, filter,
Toss solid waste caught on the filter paper
Keep the liquid dry acetone