I judge the strength and amount by using IM injection and the ML's it took to achieve a K-hole.and pass experience with different size vials via mg/ml. My cooking method is not a cooking method at all but a simple natural air dry evape method. Now I am only commenting the the vial I received, IDK know what others experiences are with the vials yet...eager to find out myself. It's great Ketamine, The amount in them is kind up in the air....how was the amount determined that was put into each vial? Was it put in each vial via syringe? Was it bottled from outside of you knowledge? It's common knowledge that all the crystals/powder that comes out of a vial is not 100% Ketamine but usually 50-100mg of other ingredients used for preservation and for injection use.