multi certified coarse alum for general use but not what you might expect for a powder [SEP] herbs botanica alum powder offers a multi certified coarse alum that is good for general use but not what you might expect for a powderpros appropriate for multiple uses usda organic vegan and other certifications bag includes recipes for use double packaged with a bag of the alum inside of a paper resealable bag decent value of level of qualitycons often alum is ground to a fine powder at least half of this alum however is like what you would expect of coarse sea salt not a powder as described get out the mortar and pestle and you shouldn t have any trouble making a fine powder for deodorant mixtures dying and other common uses this downside is not significant enough for me to strip away a star but buyers should be aware of the coarser than usual alum