Monopotassium tartrate (E336i)

No. Monopotassium tartrate (E336i) 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: 41 of the 59 products here that contain monopotassium tartrate (E336i) (69%) are in group 4 because of other ingredients or additives.

More about monopotassium tartrate (E336i) on Wikidata

Where it turns up

Monopotassium tartrate (E336i) appears in 59 of the 40,000 products on this site (0%).

Products containing monopotassium tartrate (E336i)

How the NOVA classification works