The Red Savina used to be considered the hottest pepper with a heat rating of 577,000 scoville. The Red Savina is a thick-walled pepper that is heavier and hotter than the normal habanero.
The Red Savina is a habanero that was bred specifically to be hotter, heavier and larger than other habaneros. This pepper was once protected by the US Plant Variety Protection Act. It was listed as the hottest pepper in the Guinness World Records, but in 2007 the Bhut Jolokia took its place.