I have seen all kinds of coke. I have seen yellow, pink, white, and gray. Its all about how it is processed. It is true that if you cook it into crack you will see the true percentage. Don't use baking soda though use b12. It is a known fact that if you cook a gram you will get back less than a gram because the cut will dissolve faster than the coke. But know a days there is new cuts specifically made to cook up. Its called come back. Can you guess why? If it doesn't have scales than its less than 80%. which is crap.