I like to see the decarb happen. I do the coconut oil infusion first, then decarb at 240-250°F. That way I can watch the bubbles come out form the decarb and cool the oil quickly when done. Depending on how much decarbing has naturally occurred before I decarb it, the time ranges from 15-25 minutes. The 252° curve has a nice flat top, minimizing the risk of overdoing it and breaking down the THC.