posted 11 years ago
The standard for alcohol tinctures is about two weeks (to infinity and beyond). Vinegar is not as strong (or as good a preservative) and so it takes a little longer, but not much. For ground product it is actually the same. For whole product, like your hips, it will take a week or two longer.
One thing I have been doing is actually leaving the marc (product being extracted) in the menstrum (extraction medium). This gives me two things: identification and complete extraction. It does not hurt one bit to leave it in there.