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OTC
OEKO-TEX Organic Cotton
Global · Tier 2 Trusted
Global Organic Textile Standard logo
Global Organic Textile Standard
Global · Tier 2 Trusted
Ø
Ø-mærket (Denmark)
Denmark · Tier 1 Gold
What it meansLaunched April 2023 by the OEKO-TEX Association. A separate certificate from Standard 100 that combines the Standard 100 chemical-residue test with verified organic-cotton supply chain — addressing the long-standing confusion that Standard 100 alone is NOT an organic mark.The strictest, most widely-recognised standard for organic textiles. Covers the full supply chain from organic fibre to finished garment, with environmental AND social criteria.Denmark's national organic mark, owned by the Danish Veterinary and Food Administration. The red Ø is one of the most-trusted food labels in the world — recognised by ~98% of Danish consumers.
ScopeTextilesTextilesFood
Established202320021989
InspectionAnnual on-site by OEKO-TEX-accredited institute (Hohenstein et al.)Annual on-site, IOAS-accreditedAnnual on-site by Danish Veterinary and Food Administration
Residue testingRequired (Standard 100 panel + GMO/pesticide screening)Required for finished productsRequired
Guarantees
  • Two grades: 'Organic Cotton' (100% certified-organic cotton) and 'Organic Cotton Blended' (≥70% certified-organic cotton).
  • Full Standard 100 chemical residue test on the finished product.
  • Additional GMO test + pesticide residue test specific to organic farming.
  • Verified chain of custody from farm to finished product.
  • Annual re-certification with independent OEKO-TEX institute audits.
  • ≥70% certified-organic natural fibre (the 'organic' grade requires ≥95%).
  • Restricted dyes, no chlorine bleach, no formaldehyde, no banned heavy metals.
  • Wastewater treatment requirements.
  • Social standards based on ILO core conventions (no child labour, no forced labour, fair wages, safe workplace).
  • Annual on-site inspection by IOAS-accredited certifier.
  • EU baseline organic (EU 2018/848).
  • Annual on-site inspection by the Danish Veterinary and Food Administration.
  • Direct government control (not a private body) — the unusual Danish model that drives high consumer trust.
Does NOT
  • Doesn't certify the social/labour conditions across the supply chain in the way GOTS does (use OEKO-TEX STeP for that, or pair with GOTS).
  • Cotton-only — doesn't apply to other organic fibres (wool, hemp, linen).
  • Doesn't cover non-textile components (zips, buttons, prints) beyond the chemical-restriction list.
  • Outside Denmark, retailers usually rely on the EU Leaf rather than the Ø.

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