Hard to tell with that photo, maybe take a heater or hair dryer to it to ensure the moisture is gone then do the EA wash. Any water content may enable the EA to hold a small amount if dmt citrate. Unfortunately it does pull moisture from the air over time. You wont get a fine crystaline product, but if you're confident it's almost moisture free, scrape and do an EA wash and see what gets left behind.
ill freezer precipitate it then if i decide to do the mini ab if my washes arnt soing what i want.