Honestly you may still have goodies in there. Here's what I would do.
Add a 3:1 water:vinegar.
Boil. Strain. Set tea aside.
Add more water/vinegar and repeat 1 or 2 times.
Combine all mhrb tea and basify with lye (milk jug works great)
Add naphtha. Swirl. Let it sit for 30 minutes and decant.
Freeze your naphtha and any goodies will fall out.
-Close your eyes, See the light, and feel the sunshine in the shade
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