I have put the clay w/and w/out herbs into two glasses and they have sat for 24 hours. There was no change in the color of the clay. W/out herbs, the clay is the same pale grey color as it is when dry. The one w/herbs is a little darker with smallish bits of the herb apparent but is by no means black or tarry. (will be posting photos after I do the baths). But I did not end up having time to do the bath yesterday or today. Forgot about a previous plan we had made and then today we found out that the whales were still feeding out by Quoddy Head light so we drove out there...3 hours...in an attempt to view them. Missed by a couple of hours, such is life. Busy tomorrow and Tuesday so will do the bath on Wednesday. Will post pics and results then.