Capsicum (Bell Pepper) Safety Inspection
Detect Malachite Green dye and paraffin wax in Capsicum
Overall Adulteration Risk:
MEDIUM
Inspection Guide

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Capsicum (Bell Pepper) Purity & Dye Audit
Capsicums are frequently treated with Malachite Green to maintain an unnaturally dark green color and coated with wax to prevent moisture loss and maintain a glossy appearance.
1. The Cotton Rub Test (Dye Check):
Rub a wet cotton ball on the green skin of the capsicum. If the cotton picks up a green or bluish-green tint, artificial dye like Malachite Green has been applied. Natural color does not transfer easily.
2. The Scrape Test (Wax Check):
Gently scrape the surface with a dull knife. If a white, flaky substance comes off, it is an industrial wax coating. Pure capsicums have a natural sheen but don't produce flakes when scraped.
3. The Stem Color and Freshness:
Look at the stem. A naturally fresh capsicum has a vibrant green, firm stem. If the capsicum body is bright green but the stem is dark brown, dry, and shriveled, it indicates the fruit was dyed to look fresh.
4. The Water Soak:
Soak capsicum in warm water for 15 minutes. If the water turns green or bluish, suspect artificial coloring. Natural chlorophyll does not leach easily into warm water.
Quick Safety Tips
- Perform the cotton rub test for Malachite Green
- Scrape to check for wax coatings
- Avoid capsicums with a brown, shriveled stem despite a vibrant body
- Soak in a solution of baking soda and water to remove surface pesticides
Primary Chemical Concerns
Malachite Green (Dye)
Paraffin Wax
Pesticide residues
Chlorine wash
Health Risks & Impacts
Carcinogenic risks (Dye)
Respiratory issues
Gastrointestinal upset
Multilingual Local Names
Hindiशिमला मिर्च (Shimla Mirch)
Tamilகுடைமிளகாய் (Kudaimilagai)
Teluguబెంగళూరు మిరపకాయ (Benguluru Mirapakaya)
Kannadaದೊಣ್ಣೆ ಮೆಣಸಿನಕಾಯಿ (Donne Menasinakayi)
Malayalamകാപ്സിക്കം (Capsicum)
Bengaliক্যাপসিকাম (Capsicum)
Gujaratiકેપ્સિકમ (Capsicum)
Marathiढोबळी मिरची (Dhobali Mirchi)
FrenchPoivron
ItalianPeperone
RussianБолгарский перец
SpanishPimiento / Chile morrón
GermanPaprika
Chinese灯笼椒 (Dēnglóngjiāo) / 甜椒
Japaneseピーマン (Pīman)
Common Storage Pests
Aphids / Thrips
low riskSmall insects that can live on the skin or inside the cavity.
Detection
- Sticky residue on the skin
- Small dark insects inside the fruit
Prevention
- Store in a cool, ventilated place
- Wash before use
Corrective Action: What to do?
Wash thoroughly; the internal flesh is usually safe if the damage is superficial.
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Frequently Asked Questions
Why are capsicums waxed?
It prevents moisture loss (shriveling) and gives the fruit a "premium," shiny look that attracts customers.
Are colored capsicums (Red/Yellow) dyed?
Generally no, the color is natural ripening. However, they are often waxed more heavily than green ones to protect their higher market value.