Raw Material
Commodity GroupHerbs and botanicals (natural sweetener crop)
Scientific NameStevia rebaudiana (Bertoni) Bertoni
PerishabilityMedium
Growing Conditions- Subtropical to warm-temperate growing conditions with warm temperatures and minimal frost
- Adequate rainfall/irrigation and high sunshine exposure; long-day conditions are commonly cited as favorable
Consumption Forms- Herbal infusions/tea blends (where permitted and marketed as a botanical ingredient)
- Industrial extraction into steviol glycosides for use as high-intensity sweeteners
- Dietary supplement and wellness products (market-dependent)
Grading Factors- Moisture content (low enough to limit mold risk and preserve quality)
- Leaf-to-stem ratio and foreign matter (stems, soil, extraneous plant material)
- Color/visual integrity as a practical handling-quality indicator for herbal channels
- Total steviol glycosides content and rebaudioside A/stevioside ratio (as extraction-value indicators)
- Residue/contaminant compliance (e.g., pesticide residues, heavy metals, and packaging-related contaminants as required by buyers)
Market
Bulk dried stevia leaf (Stevia rebaudiana) is a traded herbal raw material used directly in infusions and as an upstream feedstock for extracting steviol glycosides used as high-intensity sweeteners. Commercial cultivation is geographically diverse, with industry sources highlighting China and Paraguay alongside several African and American origins, while downstream extraction and ingredient manufacturing shape demand. Market access and pricing are strongly influenced by regulatory distinctions between whole-leaf materials and high-purity steviol glycosides used as food sweeteners. Quality and value are highly sensitive to post-harvest handling (especially rapid drying) and chemical profile (total steviol glycosides and the rebaudioside A/stevioside balance).
Market GrowthGrowing (long-term)Demand growth is primarily driven by sugar-reduction reformulation using steviol glycosides and by herbal/infusion use-cases for whole leaf.
Major Producing Countries- 중국Frequently cited by industry sources as a predominant cultivation origin; also a major downstream processing hub for stevia-derived sweeteners.
- 파라과이Native origin of Stevia rebaudiana; commercial cultivation and value-chain development initiatives have focused on farmer inclusion and quality upgrading.
- 케냐Industry sources cite commercial cultivation as part of diversified global leaf sourcing.
- 잠비아Industry sources cite cultivation as part of diversified global leaf sourcing.
- 미국Industry sources cite cultivation in some regions; end-market use depends on regulatory classification and intended use.
Specification
Physical Attributes- Dried whole leaves or cut-and-sifted (C/S) leaf fractions; lower stem content generally preferred for extraction yield consistency
- Green color retention is often used as a practical indicator of drying/handling quality for herbal channels
Compositional Metrics- Total steviol glycosides content (commonly used as an extraction-value indicator)
- Rebaudioside A/stevioside ratio (commercially relevant for sweetness profile and extract quality objectives)
- Moisture content control to reduce mold risk and preserve chemical integrity during storage and transit
- Foreign matter limits (stems, soil, extraneous plant material) and microbiological criteria aligned to buyer and destination-market requirements
- Screening for chemical contaminants linked to handling and packaging (e.g., plasticizer migration risks) where relevant to buyer specifications
Packaging- Bulk multiwall paper sacks or woven PP bags with food-grade liner to reduce moisture uptake
- Cartons or lined bags for higher-grade cut-and-sifted material; packaging designed to protect from humidity, light, and odor cross-contamination
ProcessingPrimary value pathway is aqueous/solvent extraction of steviol glycosides from dried leaves; post-harvest drying conditions influence retention of bioactive compounds and extraction performanceRapid drying after harvest is emphasized in the technical literature to reduce oxidation-driven quality deterioration
Risks
Regulatory Compliance HighGlobal market access is fragmented by regulatory treatment of whole stevia leaf versus purified steviol glycosides used as food sweeteners. For example, U.S. market access as a sweetener is constrained because stevia leaf and crude extracts are not considered GRAS for use as sweeteners, and this can block intended-use trade flows even when steviol glycosides themselves are accepted as high-purity sweeteners.Confirm destination-market status by intended use (sweetener vs dietary supplement vs herbal infusion), align labeling and documentation to that status, and consider routing sweetener applications through compliant high-purity steviol glycoside supply rather than whole-leaf material where required.
Quality Degradation MediumDelayed or inconsistent drying after harvest can cause oxidation-driven deterioration and reduced retention of steviol glycosides and other quality markers, lowering extraction yield/value and increasing buyer rejection risk.Implement rapid post-harvest drying protocols, standardize target moisture endpoints, and use moisture-barrier packaging with lot-level quality testing.
Food Safety MediumAs a dried botanical, stevia leaf can face import rejections or contract disputes due to non-compliance on microbiological criteria, pesticide residues, heavy metals, or foreign matter, particularly when supply is aggregated from multiple farms and handled through intermediaries.Adopt buyer-aligned raw-material specifications, apply supplier qualification and residue monitoring, and maintain traceability from farm lots through drying and packing.
Chemical Contaminants MediumPackaging and handling materials can introduce contaminants (e.g., plasticizers) that may be scrutinized by food/ingredient buyers and regulators, creating recall or rejection exposure for bulk lots.Specify food-contact compliant packaging, audit storage/transport conditions, and include risk-based screening for packaging-related contaminants where required by downstream customers.
Sustainability- Certification and traceability requirements (e.g., organic positioning in some channels) can affect smallholder inclusion and market access
- Agrochemical stewardship and residue compliance expectations for dried botanicals in international trade
Labor & Social- Smallholder inclusion risks where meeting buyer requirements (quality systems, documentation, certifications) requires sustained technical support and stable buyer-producer relationships
FAQ
Can bulk dried stevia leaf be imported into the United States for use as a sweetener?In the United States, the FDA states that the use of stevia leaf and crude stevia extracts is not considered GRAS for use as sweeteners, and their import is not permitted for use as sweeteners. Purified high-purity steviol glycosides are the stevia-derived sweeteners commonly addressed through GRAS pathways, so exporters typically align U.S.-bound sweetener applications to those high-purity ingredients rather than whole leaf.
What are the key buyer specification points for bulk dried stevia leaf in global trade?Buyers commonly focus on (1) chemical profile indicators tied to extraction value, including total steviol glycosides and the rebaudioside A/stevioside balance, (2) moisture control to reduce mold risk and preserve quality during storage and shipping, and (3) cleanliness criteria such as low foreign matter and compliance with residue/contaminant testing expectations for dried botanicals.
Why is rapid drying after harvest emphasized for stevia leaf quality?Technical literature on stevia post-harvest handling highlights that delays or inconsistent drying can accelerate oxidation and reduce retention of quality-relevant compounds, which can lower extraction yield/value and increase the risk of lot rejection. Standardized drying protocols and moisture-protective packaging are common controls to reduce this risk.