I usually only add the dry tea to my superfatting/essential oil mix at trace. I always steep the tea leaves in the oil mixture for several days, covered, before adding the entire mixture, including tea leaves, to the soap mixture. This helps softens the leaves and pulls more scent from the tea. If you don't want the exfoliating texture of tea leaves in your soap, then strain the mixture before adding at trace. This method seems to preserve the scent of the tea being used, although it still colors the soap much darker green/brown, depending upon the type of tea used. I use a natural jasmine green and white tea to help enhance the scent of my Jasmine Soap. When I've added tea to the lye mixture, the high temps tended to change the delicate tea scent somewhat.