Im no expert however for myself i firmly believe there are just to many variables involved to be able to identify too much into powdered kava. In an item for item test in a lab with positively identified plants of the same age, yes maybe however there are many things that effect packaged powdered kava such as age of plant harvested, age of processed kava (some of it can sit in storage for a long while) honestly of the initial supplier/processor that it is what they say, processing methods, mix of different plants etc etc.
