Questions
Frequently Asked Questions
Common questions about Scoville Splice, engineered peppers, and the science behind the Capsaicin Design Platform.
What is Scoville Splice?
Scoville Splice is the Capsaicin Design Platform — a computational biology program that designed the 10 hottest pepper cultivar specifications ever conceived. Using RNA-seq gene expression profiling, metabolic flux modeling, AI-guided protein engineering (ESM2), and CRISPR gene editing, we engineered ten Capsicum chinense cultivar specifications spanning 3 million to 13 million Scoville Heat Units. Scoville Splice LLC is based in Irvine, California.
Are these real peppers?
These are engineered cultivar specifications — complete genetic designs with synthesis-ready DNA constructs. The designs specify every genetic modification needed to produce peppers at the target SHU levels. The DNA sequences are real, deposited at NCBI GenBank (SUB16548149), and the entire platform is documented in a scientific preprint. However, the physical plants have not yet been grown. The specifications are designed to be realized through DNA synthesis and plant transformation by licensed partners.
How do you measure SHU?
SHU (Scoville Heat Units) is measured using High-Performance Liquid Chromatography (HPLC), which separates and quantifies each capsaicinoid compound in a sample. HPLC replaced the original 1912 organoleptic (taste-based) test because it is objective, precise (repeatable within 2-5%), and separates the five individual capsaicinoids. For Scoville Splice specimens, SHU is calculated from the five-capsaicinoid blend specification: SHU = Σ(Cᵢ × αᵢ × 10⁶), where Cᵢ is concentration in mg/g and αᵢ is the HPLC response coefficient.
Are engineered peppers safe to eat?
Capsaicin is not toxic at the concentrations found in peppers — there is no documented case of capsaicin-only ingestion causing death. However, peppers at 3 million to 13 million SHU are extremely intense. For context, pepper spray is typically formulated at 2-5 million SHU, and pure capsaicin is 16 million SHU. Proper handling protocols, PPE (gloves, eye protection), and controlled tasting procedures are essential. Our cultivar specifications include recommended safety protocols for each heat tier.
Can I buy Scoville Splice specimens?
Scoville Splice cultivar specifications are available through our licensing program. We offer four tiers: Specimen License (access to individual cultivar specifications), Sector License (exclusive rights within a defined market sector), Genome License (full genomic data and construct sequences), and Platform License (complete technology stack access). Contact us for licensing inquiries.
What is the difference between bred and engineered peppers?
Traditional breeding shuffles existing genetic variation through selective crosses over many generations — decades of crossing the hottest parents and selecting the hottest offspring. Genetic engineering uses precision tools like CRISPR to make specific, targeted modifications: knocking out degradation enzymes, overexpressing bottleneck genes, or introducing enhanced enzyme variants designed by AI. All prior world-record peppers (Carolina Reaper, Pepper X) were bred. Scoville Splice specimens are the first to use computational design and gene editing.
How hot is 13 million SHU?
Heat 10 (D.N.R.) at 13 million SHU is 4.8 times hotter than the current world record holder, Pepper X (2,693,000 SHU). For context: a jalapeño is 2,500-8,000 SHU. A habanero is 100,000-350,000 SHU. Pepper spray ranges from 2-5 million SHU. Pure capsaicin is 16 million SHU. D.N.R. at 13 million SHU is 81% of pure capsaicin. Its blend is 75% capsaicin, optimized for instantaneous sinus-stripping onset with a peak in under 5 seconds.
What is in the preprint?
The preprint (bioRxiv BIORXIV/2026/758036, Zenodo DOI: 10.5281/zenodo.23267360) documents the complete Capsaicin Design Platform and all 10 cultivar specifications. It covers: RNA-seq analysis of capsaicinoid biosynthesis gene expression, flux balance analysis revealing the vanillylamine bottleneck, ESM2 protein engineering of capsaicin synthase, CRISPR guide RNA designs, blend chemistry optimization, DNA construct assembly, and the yeast chassis design for capsaicinoid fermentation.
Is this technology patented?
The Capsaicin Design Platform, the engineered cultivar specifications, and the DNA constructs are patent pending. We have also deposited all DNA sequences at NCBI GenBank and published a scientific preprint to establish priority and enable peer review.
What is the yeast chassis?
Beyond engineering plant cultivars, we designed a complete Saccharomyces cerevisiae (baker's yeast) chassis capable of producing capsaicinoids through fermentation. Nine pathway genes were codon-optimized for yeast expression and integrated across four genomic loci, with host metabolism rewired (ARO4 and ARO7 feedback-resistant mutants, ΔARO10 and ΔPAD1 knockouts) to maximize precursor supply. Expected yield: 100-500 mg/L total capsaicinoids. This opens the door to pharmaceutical-grade capsaicin production without growing a single pepper.