How hot is the KS Yellow Flame?

The KS Yellow Flame measures 50,000–150,000 Scoville Heat Units (SHU), making it a very hot pepper — roughly 19 times hotter than a jalapeño (which tops out around 8,000 SHU).

KS Yellow Flame

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Cross of Thai variety (C. annuum) × KS StarrRacha (C. chinense). Interspecific. Yellow-ripening flame-shaped pods that point upward — resembles a flame torch when held by the stem. Khang Starr.

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NameKS Yellow Flame

Alternative Name(s)Khang Starr Yellow Flame

Universal Pepper Number (UPN)A×C-Y-SM-L-7-001ProvisionalHow UPN works

SpeciesC. annuum × C. chinense

Scoville Heat Units (SHUs)50,000 - 150,000

Heat LevelVery Hot (100,001–500,000 SHU)

Mature Pod Color (Primary)Yellow

Pod FormLong/tapered

RegionNot set

Discoverer/BreederKhang Starr

Immature Color(s)Green/Mustard

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Last updated Oct 8, 2026

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