RB003 Chilli

Description

The RB003 chilli is a modern superhot Capsicum chinense variety that has gained attention in the chilli-growing community for its extreme heat, unusual genetics, and dramatic appearance.

 

It is widely believed to have been bred by Australian grower Ross Barber, with most sources describing it as a cross between a Carolina Reaper (often yellow forms) and a 7 Pot Brainstrain type pepper.

 

Appearance

RB003 pods are very distinctive:

Twisted, heavily wrinkled “scorpion-like” shape

Often with a pronounced pointed tail (“stinger”)

Thick, bumpy skin with a rough, brain-like texture

Ripens from green  to mustard/yellow or intermediate tones  to deep red (sometimes other unstable colour variants appear)

 

Heat level

Estimated around 1,000,000 to 2,000,000+ Scoville Heat Units (SHU)

Typically described as Carolina Reaper-class heat or higher

No widely accepted lab-tested SHU value exists, so figures are based on grower reports and comparisons

 

In practical terms, it delivers:

Very fast onset burn

Strong full-mouth and throat heat

Long-lasting intensity, often lingering well after consumption

 

Flavour profile

Despite the extreme heat, RB003 is often noted for:

Fruity and citrus-like top notes

Light floral undertones

Mild earthiness (varies by grower and ripeness)

This makes it more interesting than many “pure heat” superhots, especially for hot sauces.

 

Plant characteristics

Vigorous Capsicum chinense growth habit

Medium-to-tall plants (often over 1 m in good conditions)

Productive but sometimes variable (not fully stabilised)

Prefers warm, sunny conditions and long growing seasons

 

Why growers like it

Extremely high heat level for chilli challenges and superhot collectors

Visually striking pods

Some phenotypes show unusual colour or shape variation (genetic instability adds interest)

Useful in ultra-hot sauces, powders, and ferments

 

In short: RB003 is a newer-generation superhot hybrid prized for Reaper-level heat, aggressive scorpion-like pods, and a surprisingly fruity flavour profile underneath the burn.