ok heres what you can do.. manually separate these crystals (at least enough to stop blocking the funnel), put in a glass or something. Then separate the two layers.. Then add more hot vinegar to the naphtha and separate again, put the vinegar pulls together.
The crystals that you manually separated, you can redissolve them in hot vinegar (oh btw dilute the vinegar, no need to use it concentrated.. Could be for example 1 part vinegar and 2 or 3 parts hot water or smt). And then add all your vinegar together and re-base and re-extract.
Dont throw anything away, dont worry nothing is lost
