Classification
Product TypeRaw Material
Product FormFresh
Industry PositionPrimary Agricultural Product
Raw Material
Commodity GroupHerb (medicinal and aromatic plant / sweetleaf)
Scientific NameStevia rebaudiana (Bertoni) Bertoni
PerishabilityHigh
Growing Conditions- Subtropical conditions with long days of sunshine
- Warm temperatures with minimal frost
- Adequate rainfall and good sunlight exposure
Main VarietiesMorita, Eirete, Criolla
Consumption Forms- Fresh leaf use in infusions (localized markets)
- Dried leaf for teas/botanicals
- Processing feedstock for extraction and purification into steviol glycosides
Grading Factors- Leaf integrity and color (avoid blackening/browning)
- Foreign matter control (clean leaf lots with minimal stems/soil)
- Residue compliance to importing-market pesticide MRL regimes (and Codex CXLs where relevant)
Market
Fresh stevia leaf (Stevia rebaudiana) is a niche globally traded herb, with most commercial demand linked to near-origin drying and further processing into stevia ingredients (steviol glycosides) rather than long-distance shipment of fresh leaves. Global leaf production is reported as highly concentrated in China, with additional cultivation in parts of Asia, the Americas, and Africa. Because fresh leaves have very high moisture and are prone to rapid quality loss (e.g., oxidative blackening), fresh-leaf trade is more logistics-constrained than dried leaf and extract supply chains. International market access is also shaped by regulatory distinctions between stevia leaves as a botanical food ingredient versus steviol glycosides regulated as food additives (e.g., Codex INS 960; EU additive E 960).
Market GrowthMixedStevia sweetener ingredient adoption has broadened across food categories, while fresh-leaf trade remains constrained by perishability and is often supplanted by dried-leaf and extract supply chains.
Major Producing Countries- ChinaReported as the dominant source of global stevia leaf production (e.g., 2016 production share reported at ~80%).
- ParaguayOrigin region of Stevia rebaudiana and an identified cultivation country in industry references.
- KenyaIdentified cultivation country in industry references.
- ZambiaIdentified cultivation country in industry references.
- IndonesiaListed among significant producing countries in published literature.
- IndiaListed among significant producing countries in published literature.
- MexicoListed among significant producing countries in published literature.
- United StatesListed among significant producing countries in published literature and in industry references.
- CanadaListed among significant producing countries in published literature.
Specification
Major VarietiesMorita, Eirete, Criolla
Physical Attributes- Leaves have very high moisture content (around 80% reported in drying literature), making them susceptible to oxidative blackening and difficult to store if not promptly cooled and processed.
Compositional Metrics- Buyer and processor specifications commonly focus on steviol glycoside content and profile (e.g., proportions of stevioside and rebaudiosides), typically assessed on a dry-matter basis.
- Drying method and time-to-drying materially affect retention of steviol glycosides and color quality.
ProcessingFresh leaves are commonly routed quickly into drying operations (shade/solar/convective/infrared/microwave/freeze drying) to stabilize quality and reduce microbial and oxidation risks.Extended ambient exposure before drying can drive measurable losses in sweet glycosides and quality deterioration.
Supply Chain
Value Chain- Harvest (often timed to maximize leaf sweetness; commonly before flowering in agronomic guidance) -> rapid collection -> short holding with cooling where feasible -> transport to near-origin drying facility -> dried leaf packing for tea/botanical use or extraction into stevia ingredients (steviol glycosides) -> ingredient distribution to food and beverage manufacturers.
Demand Drivers- Demand for stevia leaves is closely tied to downstream manufacture of steviol glycosides used as high-intensity sweeteners (Codex INS 960; multiple production routes recognized in Codex GSFA/JECFA context).
- Botanical/herbal use of leaves (e.g., sweetening infusions such as mate/tea) persists as a smaller, more localized demand channel relative to ingredient supply chains.
Temperature- Short-term refrigerated holding (e.g., 2–4°C used in stevia leaf drying research workflows) can help slow deterioration prior to processing, but does not replace the need for prompt drying/processing.
Shelf Life- Fresh stevia leaves deteriorate quickly without prompt drying/processing due to high moisture and oxidative blackening risk, which limits practical long-distance fresh-leaf logistics.
Risks
Perishability And Post-Harvest Quality Loss HighFresh stevia leaves have very high moisture and are prone to rapid oxidative blackening and quality loss if not promptly cooled and dried/processed. This creates a structural constraint on global trade in fresh leaves, increases shrink risk, and shifts the supply chain toward near-origin processing (drying/extraction) rather than long-haul fresh shipment.Design contracts and logistics around rapid harvest-to-processing; use short-term cooling where feasible; prioritize dried-leaf or extract supply chains for long-distance trade.
Supply Concentration MediumPublished literature reports stevia leaf production as heavily concentrated in China (e.g., ~80% share reported for 2016), creating exposure to localized climate shocks, farm input disruptions, policy changes, and logistics bottlenecks.Qualify multiple origins and suppliers; maintain dual sourcing (e.g., Asia plus Americas/Africa) for dried leaf or extract feedstock.
Regulatory Compliance MediumRegulatory treatment differs between stevia leaves as a botanical ingredient and purified steviol glycosides as standardized sweeteners (Codex INS 960; EU additive E 960). This can restrict leaf-based product access in certain importing markets even when steviol glycosides are permitted.Confirm importing-market authorization status for stevia leaves versus steviol glycosides; align product form (fresh leaf, dried leaf, extract, purified glycosides) with target-market legal pathways and labeling rules.
Food Safety MediumAs a leaf commodity, stevia can be exposed to pesticide residue and contaminant compliance risks in importing markets. Residue management is further complicated when leaves are dried because drying concentrates residues on a weight basis, and trade often references Codex and/or destination-market MRL regimes.Implement GAP-aligned pesticide stewardship; test against destination-market MRLs (and Codex CXLs where relevant); manage drying factors and documentation for compliance.
FAQ
Why is fresh stevia leaf difficult to ship internationally?Fresh stevia leaves have very high moisture and can deteriorate quickly (including oxidative blackening) if they are not promptly cooled and processed. Drying-focused studies note these storage challenges, which is why many supply chains move the crop quickly into near-origin drying or extraction rather than long-distance fresh shipment.
Which country dominates global stevia leaf production?Published research reports that China accounts for the majority of global stevia leaf production (for example, one open-access study cites about 80% of world stevia leaf production coming from China in 2016), making global supply relatively concentrated.
What is stevia’s scientific name?The commonly cultivated “sweet leaf” plant used for stevia leaves is Stevia rebaudiana.
How does stevia leaf connect to stevia sweeteners used in foods and beverages?Stevia leaves contain steviol glycosides, which are standardized and evaluated as high-intensity sweeteners. Codex GSFA lists steviol glycosides (INS 960 and related subcategories) as sweeteners, and WHO/JECFA provides safety evaluations and an ADI for steviol glycosides.