Chilli Heat Levels | SHU Scale – Chilli Growing Guide by CHILLIESontheWEB

Heat Level

This is our heat level scale — based on actual Scoville Heat Units (SHU) and our experience growing, handling, and tasting chillies over the years. Everyone has their own version. This is ours.

Each listing shows the number of red chillies (1 to 5) or is marked as Sweet, Superhot, or Unknown. For full growing advice — including colour, shape, and how they perform in the UK — check the individual product pages

Choose which database of Chilli Heat to View

Cartoon-style sweet pepper with a cheerful expression, vibrant colours, and a playful background representing the mildest chili heat level.

Cartoon-style mild chili pepper with a slightly excited expression, warm colours, and a subtle flame background indicating a gentle spice

Cartoon-style moderately spicy chili pepper with an excited expression, bold orange tones, and small flames representing mild chili heat.

Cartoon-style chili pepper with a bold, fiery expression, vibrant red colours, and noticeable flames representing medium chili heat

Cartoon-style chili pepper with an intense, fiery expression, deep red tones, and dynamic flames showcasing a high chili heat level.

Cartoon-style chili pepper with a dramatic fiery expression, vivid colours, and explosive flames symbolising very high chili heat

Cartoon-style extremely spicy chili pepper with a fiery expression, crimson colours, and intense flames, smoke, and embers representing the superhot heat level.

Cartoon-style chili pepper with a puzzled expression, surrounded by question marks and abstract symbols, representing an unknown chili heat level in a playful design

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Heat Level

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