Yeah, anything inside isn't even close to an option. I use the gas grill as a stove to get the vinegar boiling for post smoke blanching. I don't try to remove any pepper skin or seeds. Even indoor bottle filling will make you cough and cry if the sauce is still steaming. I usually wear rubber gloves as well as you're sure to spill a bit here and there. Speaking from past experience, you don't want to be taking a leak after getting this stuff on your hands.