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Tún (Iceland) logo
Tún (Iceland)
Iceland · Tier 1 Gold
USDA Organic logo
USDA Organic
United States · 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.The US Department of Agriculture's national organic standard. The green-and-white seal is the legal mark for any food sold as 'organic' in the United States.A German farmers' association whose private organic standard is stricter than the EU baseline. Covers food, aquaculture, textiles, and cosmetics. Recognised globally.
ScopeFoodFoodSeveral categories
Established199420021982
InspectionAnnual on-site, MAST-accreditedAnnual on-site by USDA-accredited certifierAnnual on-site by Naturland-accredited inspectors
Residue testingRequired for at-risk operationsRequired on ≥5% of operations annuallyRequired
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).
  • At least 95% of ingredients are certified organic (the '100% Organic' variant requires every ingredient).
  • No synthetic pesticides, no synthetic fertilizers, no GMOs, no sewage sludge, no irradiation.
  • Annual on-site inspection by a USDA-accredited certifier.
  • Residue testing on at least 5% of certified operations each year.
  • 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.
  • Doesn't certify nutrition, taste, or animal welfare specifically (separate marks like AWA cover welfare).
  • Doesn't guarantee local production — a 'USDA Organic' product can be grown anywhere with an accredited inspector.
  • Membership-based — only farms that join the Naturland association can use the mark.

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