I can't speak to your extraction, but I normally wash my glassware by rinsing it in sequence:
1. Acetone
2. Tap water
3. Distilled water
If I'm going to use the glassware again right away and need it dry in a hurry, I'll rinse the remaining drops of distilled water out with a bit more acetone.
For particularly stubborn gunk, I'll scrub the glassware with a paper towel and a bit of
Bon Ami powder, followed by copious amounts of tap water, then a rinse with distilled water followed by acetone. I like Bon Ami because it's scrubby and rinses off very clean; we'd use it in the microbiology lab to clean slides. (It's also my go-to scrubby soap in the kitchen too - love it on stainless steel!) Fair warning, it
will scratch glass if you scrub hard enough. Maybe try the
1886 Formula if that's a concern for you?
Also, for what it's worth, I have a note in my lab notebook that MHRB may have a sudsy effect by itself. I discovered this after a bag of hydrating MHRB powder leaked into the bowl it was sitting in. When I went to rinse it out, the residue had a soapy, sudsy quality. Some part of me thinks that willow bark has a similar soapy effect; my note mentions, "must be a bark thing." Not sure that holds up through being acidified and basified, but it's a thought anyway.