My wife is not a fan of things being hot so I end up covering the food she makes in cayenne. I think I have gotten to a point where it doesn't always do it for me. Is there any type of powdered pepper or a certain brand I can buy off of amazon that is hotter than cayenne. I prefer it to not affect the taste of the food. That is why I have always used cayenne. I have seen ghost pepper powder on amazon. Anyone have any recommendations?