- PuckerButt Peppers has relied on chemistry tests conducted every few months over the past five years by Professor Cliff Calloway and his undergraduate chemistry students to determine its peppers’ heat.
- Calloway said jalapeno peppers come in at 10,000 units and habanero peppers at 250,000, while PuckerButt’s hottest pepper has most recently tested at 1.5 million units.
Winthrop University, "Chemistry Students Play Role in Chili Pepper War" (2013). Winthrop News 2013. 243.