Who so ever eats XXX at burger off has to sign a waiver before digging into the burger. The burger is not allowed to anyone less than 18 years of age.
The sauce made is concentrated peri peri sauce from India. Gambardella estimated that the sauce measures between seven to nine million units on the Scolville scale.
Tabasco sauce comes in around 2,500 – 5,000, while pepper spray ranks 500,000 to five million units.