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Tún (Iceland) logo
Tún (Iceland)
Iceland · Tier 1 Gold
Bio-Siegel (Germany) logo
Bio-Siegel (Germany)
Germany · Tier 1 Gold
Naturland logo
Naturland
Germany · Tier 2 Trusted
What it meansVottunarstofan Tún is Iceland's only accredited organic certifier. Accredited by MAST (Matvælastofnun) under the EU 2018/848-equivalent Icelandic standard, so a Tún-certified product is also recognised as EU-organic.Germany's national organic mark, owned by the Federal Ministry of Food and Agriculture. Sits alongside the EU Leaf on most German organic packaging since 2001. Same standard as the EU Leaf — Bio-Siegel is the brand consumers recognise.A German farmers' association whose private organic standard is stricter than the EU baseline. Covers food, aquaculture, textiles, and cosmetics. Recognised globally.
ScopeFoodFoodSeveral categories
Established199420011982
InspectionAnnual on-site, MAST-accreditedAnnual on-site by EU-accredited German control bodyAnnual on-site by Naturland-accredited inspectors
Residue testingRequired for at-risk operationsRisk-basedRequired
Guarantees
  • ≥95% organic ingredients per EU rules.
  • No synthetic pesticides, no GMOs.
  • Annual on-site inspection.
  • Animal welfare standards (outdoor / pasture access, geothermally-warmed greenhouse compatibility for vegetables).
  • EU baseline organic (EU 2018/848).
  • Annual on-site inspection by accredited German certifier.
  • Stricter than EU 2018/848 (lower nitrogen inputs, full-farm conversion, social standards).
  • Annual on-site inspection.
  • Fair-pricing requirements for member farmers.
Does NOT
  • There aren't many Tún-certified operations (~120–160) — coverage in the Icelandic market is narrower than in the EU mainland.
  • Same standard as the EU Leaf — not stricter.
  • Membership-based — only farms that join the Naturland association can use the mark.

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