I'll have to look both of those methods up. I can see how doing it with heat would help considerably. I was afraid I would accidentally deep fry the grass instead of infusing it! Next time I'm going to do this when it is hot outside and keep the jar in the sunlight. Unless I read that the sunlight will kill the oil since essential oils are usually stored out of the sunlight. Looks like I need to do more research! Haha!