Classification
Product TypeRaw Material
Product FormFresh
Industry PositionPrimary Agricultural Product
Raw Material
Commodity GroupRoot vegetable (Brassica/Crucifer family)
Scientific NameRaphanus sativus L. var. radicula Pers.
PerishabilityHigh
Growing Conditions- Crop management commonly emphasizes rapid growth to support mild flavor and crisp texture; slowed growth can increase pungency and woodiness
- Uniform size and shape are important for bunching and retail presentation
Main VarietiesCommon red radish (small red table radish), Icicle radish, Daikon-type radish (Asian large-rooted types)
Consumption Forms- Fresh, raw consumption (salads, garnishes, crudités)
- Pickled/fermented preparations (market-dependent)
Grading Factors- Root firmness and tenderness; freedom from pithiness/woodiness
- Cleanliness and soundness; freedom from decay and pest/insect damage
- Freedom from growth cracks/air cracks and cuts
- For bunched radish: fresh, non-yellowed tops with minimal discoloration and damage
Planting to HarvestCommonly managed by days post-seeding/emergence; reported range varies by type (30–70 days).
Market
Fresh red radish (common small red table radish) is a fast-cycle root vegetable typically marketed either bunched with tops or topped, and its short storage life makes most trade regional and time-sensitive. International trade and customs statistics commonly capture radishes within HS heading 0706 (grouped with other edible roots), which can limit product-level visibility for “red radish” specifically. Postharvest performance is highly dependent on rapid cooling, near-0°C cold chain, and very high relative humidity to prevent wilting and texture loss. Commercial quality is commonly framed by formal grade/quality standards (e.g., U.S. grade standards and UNECE FFV standards), with buyer focus on firmness, cleanliness, and freedom from pithiness, cracking, and decay.
Specification
Major VarietiesCommon red radish (small red globe types), Icicle radish (elongated white types)
Physical Attributes- Crisp, tender roots are the primary quality target; slow growth or over-maturity can lead to woody texture and increased pungency
- Over-mature roots may become pithy/spongy and develop harsher flavors
- Bunched product quality also depends on fresh, turgid tops free of yellowing and decay
Compositional Metrics- Maturity is commonly managed by days post-seeding/emergence, varying by type (reported range: 30–70 days)
- Minimum size commonly referenced for common red radish is 5/8 inch (1.6 cm) equatorial diameter
Grades- United States Standards for Grades of Radishes: U.S. No. 1 and U.S. Commercial
- UNECE FFV-43 standard for radishes (minimum requirements and class-based marketing conventions in international trade)
Packaging- Bunched radishes (with tops) tied in bunches
- Topped radishes with tops clipped short; commonly shipped in cartons, often using icing/top-ice practices to maintain temperature and moisture
Supply Chain
Value Chain- Harvest -> field heat removal/rapid cooling -> washing/sanitation (as applicable) -> bunching or topping -> cold storage -> refrigerated transport -> retail/foodservice
Demand Drivers- High use as a fresh, raw vegetable in salads, garnishes, and mixed vegetable packs where crisp texture and visual appearance are valued
- Preference for consistent size, clean skins, and minimal defects to support fast retail turnover
Temperature- Optimum storage temperature reported for common red radish is 0°C (32°F); rapid cooling is emphasized to reach full storage potential
- Short exposures to temperatures above 7°C (45°F) are reported to increase risk of off-flavors, browning, and soft rot
Atmosphere Control- Controlled atmospheres reported as slightly beneficial for topped radish at 5–7°C: approximately 1–2% O2 with 2–3% CO2
Shelf Life- At 0°C with high humidity, common red radish quality is reported at ~7–14 days when bunched with tops and ~21–28 days when topped
Risks
Cold Chain And Shelf Life HighFresh red radish is highly time- and temperature-sensitive: quality can deteriorate quickly through wilting, off-flavors, browning, and soft rot if rapid cooling and near-0°C, high-humidity conditions are not maintained, particularly for bunched product with tops.Specify and enforce rapid postharvest cooling, maintain near-0°C transport/storage with very high relative humidity, and align product form (bunched vs topped) to the intended transit time.
Freeze Injury MediumBecause radish is ideally stored just above its freezing point, freeze injury can occur if temperature control overshoots below safe limits, causing water-soaking, blackening of shoots, and rapid softening upon warming.Use calibrated setpoints and monitoring to avoid sub-freezing exposure while maintaining near-0°C storage; audit cold rooms and reefer performance during peak cold seasons.
Postharvest Disease MediumPostharvest diseases (including bacterial black spot and bacterial soft rot) can develop, especially when storage temperatures are warmer than optimal or when harvest wounds and sanitation are poorly controlled, reducing marketable yield and increasing claims risk.Maintain strict refrigeration, minimize mechanical injury, and apply appropriate wash-water sanitation controls consistent with buyer/regulatory requirements.
Quality And Grade Compliance MediumExport and retail buyers often require conformance to grade/quality factors such as cleanliness, firmness, freedom from pithiness/cracks/decay, and (for bunched product) fresh tops; inconsistent grading increases rejection risk and price discounts.Implement standardized grading and defect-tolerance checks at pack-out and maintain traceable lot-level QC aligned to relevant standards (e.g., U.S. grade standards and applicable UNECE conventions).
FAQ
What cold-chain conditions are commonly used to preserve quality in fresh red radish trade?Sources commonly cite an optimum of 0°C (32°F) with very high relative humidity and rapid cooling after harvest; temperature excursions above about 7°C (45°F) are associated with faster quality loss and higher soft-rot risk.
How does shelf life differ between bunched and topped red radishes under optimal storage?Under near-0°C, high-humidity conditions, common red radish is reported to maintain acceptable quality for about 7–14 days when bunched with tops and about 21–28 days when topped.
What grading frameworks are commonly referenced for radishes in commercial trade?U.S. trade can reference USDA AMS grade standards for radishes (e.g., U.S. No. 1 and U.S. Commercial), and international trade commonly references UNECE fresh fruit and vegetable standards, including the UNECE standard for radishes (FFV-43).