Chilli Quality & Buyer Specification Guide

Terminology, HS codes & product forms

"Chilli" in trade covers several Capsicum species and a range of finished forms. Codex Alimentarius's CXS 353-2022, Standard for Dried or Dehydrated Chilli Pepper and Paprika (effective 20 September 2023) is the current international reference and defines three styles: whole (with or without stalk), crushed/cracked/broken/flakes, and ground/powdered. For whole, unprocessed chillies and capsicums specifically, ISO 972:1997, "Chillies and capsicums, whole or ground (powdered) -- Specification," also exists -- we could confirm its title and scope from ISO's own listing page but could not access the full standard text, so we do not reproduce its numeric limits here. A commonly repeated claim is that "ISO 7540" is the dried-chilli standard; that is incorrect -- ISO 7540:2020 covers ground sweet and hot paprika specifically (Capsicum annuum/frutescens) and explicitly does not apply to ground chillies of other species.

Internationally, dried chilli is traded under HS 0904.21 (dried, neither crushed nor ground) and HS 0904.22 (crushed or ground) -- the same HS 0904 heading covers pepper (Piper) and Capsicum/Pimenta fruits together, so buyers should confirm the full extended code with their customs broker rather than quoting "0904" alone.

Pungency & colour

Pungency (heat) is conventionally reported in Scoville Heat Units (SHU), originally a human taste-panel method, now standardly measured by HPLC quantification of capsaicinoids and converted to an SHU-equivalent figure. The trade also uses ASTA pungency units, a separate American Spice Trade Association lab convention; one commercial source states a 1 ASTA pungency unit ≈ 15 SHU conversion, which we flag as sourced from a trade/commercial page rather than ASTA's own published methodology, and have not independently confirmed. ASTA colour units are a distinct scale (roughly 40-180+) used mainly to grade the red-colour strength of paprika and paprika oleoresin, not chilli pungency -- the two ASTA scales measure different things and should not be conflated.

The clearest concrete pungency/colour table we found comes from a Zanzibar-specific source: the Zanzibar Bureau of Standards' draft standard PCD 699:2025 (explicitly based on CXS 353-2022) classifies by Scoville band:

Source: Zanzibar Bureau of Standards, draft PCD 699:2025, "Dried or dehydrated chilli pepper and paprika -- Specification", Table 1. This is a first-edition draft open for public comment, not yet a compulsory Zanzibar National Standard as of this research pass -- treat its figures as the clearest currently-available Tanzania/Zanzibar-adjacent reference, not as settled law.

Moisture, ash & fibre

The same ZBS draft (Table 1) sets, for whole chilli peppers: moisture 11% w/w max, total ash 10% w/w max (dry basis), acid-insoluble ash 1.6% w/w max (dry basis); for ground chilli, crude fibre is capped at 30% and non-volatile ether extract set at a 12% minimum (both dry basis). A footnote allows ground product containing anticaking agents (max 2%) a higher moisture allowance. These figures are drawn directly from Codex CXS 353-2022, which the draft cites as its normative basis -- we treat the two as consistent rather than independent corroboration.

Defect tolerances

The ZBS draft's clause 4.6 sets these defect ceilings (test method: Annex A / ISO 927):

Separately, a physical-requirements table in the same draft sets: mammalian/other excreta ≤1 mg/kg, mould damage combined with insect damage ≤3% (whole), extraneous matter (plant matter not part of the product) ≤1%, foreign matter (sticks, stones, metal etc.) ≤0.5%, and zero tolerance for live insects.

An honest flag on the source itself: the draft's clause 4.3 states the Extra/Grade I/Grade II classification applies to paprika and hot paprika; its clause 4.6 defect table then applies that same three-tier system to "broken fruits and fragments" without restating which product it covers, while the chemical-requirements table (Table 1) leaves "Chilli peppers" with no Class/Grade subdivision at all ("-"). We report the defect figures as given rather than resolve this ambiguity for the drafters -- it is a rough edge in a document still open for public comment, not a transcription error on our part. A separate, older reference, the UNECE trial recommendation for whole dried chilli peppers (2012), uses a different framing entirely -- blemish/discolouration affecting not more than 25% of surface area, plus zero tolerance for living pests, mould and abnormal external moisture -- consistent in spirit but not numerically identical to the ZBS/Codex table above. Sources: ZBS draft PCD 699:2025; UNECE recommendation (2012).

Aflatoxin & mycotoxin limits -- a genuine food-safety issue

Dried chilli grown and dried in humid tropical conditions carries real aflatoxin risk from mould growth during drying and storage, and this is treated as a substantive food-safety parameter, not a formality, by every regulatory source we checked:

The ZBS draft's own text states its aflatoxin limits in µg/L, which we read as a likely unit error in the draft (aflatoxin limits in food are conventionally expressed per kg of solid product, and the figures match the EU's µg/kg limits numerically) -- we report what the document says rather than silently correct it. The EU regulation additionally allows a higher limit for product destined for further sorting/processing before human consumption; the 5/10 µg/kg figures above apply to product for direct consumption or as a food ingredient. Sources: ZBS draft PCD 699:2025; EU Regulation 2023/915.

The ZBS draft also sets microbiological limits (clause 7): Salmonella spp. absent per 25g, Bacillus cereus ≤10⁴/g, sulphite-reducing clostridia ≤10³/g.

Varieties & product forms in East Africa

Tanzania's own chilli sector is built mainly around African bird's-eye chilli (Capsicum frutescens, known regionally as piri-piri/pili-pili), rather than the larger Capsicum annuum types grown for paprika elsewhere. Buyers should specify variety explicitly -- "bird's-eye" is a real, distinct commercial category from generic "dried chilli."

Product forms seen in Tanzanian export contract-farming arrangements are predominantly whole dried pods sold into specialty/food-industry and cosmetics-ingredient channels (bird's-eye chilli oleoresin is also used as a lipstick/cosmetics raw material, per trade press), rather than ground powder or flakes, which is more typical of the larger-fruited C. annuum trade.

Tanzania-specific: scale, smallholders & a named buyer relationship

FAOSTAT-derived figures put Tanzania's chilli and pepper (green) output at roughly 15.9 kilotonnes in 2024, essentially flat versus 2023 -- consistent with the national production figures already published on our own Tanzania chilli overview (15,855t 2024, 15,851t 2023). Production is smallholder-dominated; one trade source describes Tanzanian chilli production as organic "by default" at smallholder scale, though a separate, older sector report put formally certified organic chilli production at only roughly 24-28 tonnes/year (a 2020-published estimate referencing a 2010/2011 base figure of "over 7,000 tonnes" and claimed ~30%/year growth at that time) -- we flag that older figure as dated and narrower in scope (certified-organic volume specifically, not total national output) rather than conflating it with the current FAOSTAT total above.

A concrete, current example of contract-farming structure: Vitese Company Limited runs a bird's-eye chilli contract-farming programme with Tanzanian smallholders, supplying seed (reported at roughly 80g for TZS 150,000) and paying farmers approximately TZS 7,000/kg at farmgate, with the company citing demand from Japan, the UK, the US, India and South Africa and targeting roughly 30 tonnes/week of combined exports across markets. We report this as one documented company's named programme, not as evidence of an industry-wide price or volume.

Sources: FAOSTAT (via Helgi Library compilation); TDC/Enabel, "Organic Spices in Tanzania: Opportunities for Producers" (2020); HortiDaily, "Tanzania: How African birds-eye chili is growers' new 'green gold'", citing Vitese Company Limited.

Harvest timing -- an honest gap. We could not find a credible, chilli-specific harvest-calendar source for Tanzania; the closest we found was generic East African masika-season farming guidance (planting roughly February/March, harvest roughly July/August) that is not specific to chilli as a crop. Rather than publish an invented or generically-borrowed calendar, this page omits the harvest-seasonality widget shown on some other commodity pages on this network.

Buyer specification checklist

Sample & inspection guidance

• Appearance -- colour consistency, pod size/shape consistent with the variety ordered, visible mould or black-staining.
• Aroma -- should smell clean and characteristically pungent, not musty, rancid, or foreign-smelling.
• Breakage -- whole-pod proportion vs broken fruits/fragments against the tier ordered.
• Foreign/extraneous matter -- visible stalks, stems, stones, or other plant matter not part of the product.
• Packaging condition -- intact, dry, no signs of moisture ingress or pest activity.

A visual/aroma sample check is a screening step, not a substitute for laboratory testing -- pungency (SHU), moisture percentage and aflatoxin/mycotoxin levels all require lab equipment to confirm, not inspection by eye. Our general Quality Inspection & Pre-Shipment Verification guide covers the wider pre-shipment inspection process that applies across commodities, including chilli.