One way to determine the quality of the flavor of cannabis in the previous run is to “throw it away dry”, that is, to take a hit without it turning on. If the joint tastes good, with a defined flavor profile, that's a good sign. It should taste similar once burned. Unless you have a home testing device like TCheck, you'll calculate the potency of your cannabis infusion.
Your volumes of plant material and carrier oil will be determined according to the desired power. This useful calculator will make it easy for you to estimate.
