Thiabendazole (E233)
No. Thiabendazole (E233) is not one of the markers Open Food Facts uses to classify a food as processed or ultra-processed, so on its own it doesn't raise a product's NOVA group.
What it is
A food additive authorised for industrial food production.
A product that contains it can still be ultra-processed for other reasons: 4 of the 5 products here that contain thiabendazole (E233) (80%) are in group 4 because of other ingredients or additives.
Where it turns up
Thiabendazole (E233) appears in 5 of the 40,000 products on this site (0%).
