Guys, I think its better to heat up your mighty and then add the herbs. I tried this and I found theres sooo much more flavor. It was bursting with flavor. I think if u have u herbs in it while it heats up, then its drying ur herbs out on the way to ur designated temp. It seems like a waste to me. I'm pretty sure I read somewhere, maybe by S&B themselves, that u should pre-heat your oven. If its true, then capsules (or basket screens like I have), are even more useful for every day use.