Preheat your oven to 220-240 degrees. If your oven runs hot or has uneven temperature controls, aim for the lower end.
Lightly grind or break apart your bud. You want plenty of surface area, but don’t grind it into powder. Smaller pieces heat more evenly.
Line a baking sheet with parchment paper and spread the cannabis in a thin, even layer. Avoid piling it up.
Place the baking sheet in the oven and bake for 30 to 40 minutes. Stir or mix gently halfway through to help everything decarb evenly.
Your decarbed flower should look dry and lightly toasted, usually a golden brown or deeper green-brown color. Let it cool for up to 90 minutes before using it in butter or oil, tinctures with high proof alcohol, or other cannabis infused recipes.