Sodium Tripolyphosphate (STPP)
additive · base score -1
What is it?
Sodium Tripolyphosphate (STPP) is an additive, such as a preservative, flavouring or colouring. Graded poor: cheap, vague or of questionable value, so it drags a product’s score down.
At a glance
- Category
- additive
- Grade
- poor
- Base score
- -1 (from −1 to 1; higher is better)
- Found in
- 21 products
- Also listed as
- -
Common questions about sodium tripolyphosphate (stpp)
Is Sodium Tripolyphosphate (STPP) good for dogs?
We grade it as a poor ingredient: typically cheap, vague or of questionable nutritional value, so it drags a product’s score down. One poor ingredient does not make a food bad on its own, but a recipe built from several usually scores low.
How many UK dog foods contain sodium tripolyphosphate (stpp)?
21 UK products list sodium tripolyphosphate (stpp) as an ingredient in our database. The full list is shown below, sorted by rating.
How does Open Dog Food grade sodium tripolyphosphate (stpp)?
We grade it poor, our lowest grade, used for cheap, vague or low-value ingredients. Every ingredient is converted to its dry-matter share and scored from our glossary before a recipe gets its 1-100 rating; the full method is on our methodology page.
What is sodium tripolyphosphate used for in dog food?
Sodium tripolyphosphate, often labelled as STPP, is a phosphate additive used to help bind water and improve texture in wet pet foods. On UK labels it appears among the additives.
Is sodium tripolyphosphate a preservative in dog food?
STPP is primarily used for water binding and texture rather than as a preservative, although it is listed with the additives on the label. Its main role is to help retain moisture and give a firmer appearance to meat pieces.








