There is 1 FHIS-registered Thai business in Shetland Islands — 1 dine-in restaurant and 0 takeaways.

Scotland uses the Food Hygiene Information Scheme (FHIS) instead of the 0–5 hygiene ratings used in England, Wales and Northern Ireland. 0 of 1 Thai business in Shetland Islands hold a Pass rating.

The 0–5 FSA rating system applies in England, Wales and Northern Ireland only — in Scotland, Food Standards Scotland's FHIS scheme rates businesses Pass or Improvement Required. Of the 1 Thai business in Shetland Islands, 0 hold a Pass. 1 is rated Improvement Required.