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STPP (Sodium Tripolyphosphate) E451 is a high-purity food-grade phosphate additive with excellent water retention, emulsification and texture-improving properties. It appears as white granular or powder, featuring stable chemical performance, high solubility and low impurity content. Widely applied in meat, seafood, frozen food, dairy products and beverage processing, STPP effectively locks moisture, improves tenderness, prevents protein denaturation and extends shelf life. It also acts as a quality improver and water softener in food production. Our STPP strictly complies with FCC, EU food-grade and international export standards, with complete test reports and stable batch quality, making it a reliable raw material for global food manufacturers.
Product Photo
Product Specifications
Item
Standard Specification
Product Name
Sodium Tripolyphosphate (STPP)
E Number
E451(i)
CAS No.
7758-29-4
Molecular Formula
Na₅P₃O₁₀
HS Code
28353100
Grade
Food Grade / High Purity
Appearance
White Powder / Granular, No Caking
STPP Purity
≥94.0%
Packaging
25kg Kraft Paper Bag with PE Inner Liner
Shelf Life
24 Months
Storage Condition
Cool, Dry & Ventilated Place, Sealed Storage
Product Q&A
Q1: What is STPP used for?
A: STPP (E451) is a widely used food-grade moisture retention agent and texture improver. It can lock water, improve tenderness, enhance elasticity and prevent juice loss for meat, seafood and frozen products. It also works as emulsifier and stabilizer in dairy and beverage industry.
Q2: Is your STPP food grade and safe for export?
A: All our STPP is 100% food grade, compliant with FCC, EU E451 and international food safety standards. Complete COA, test reports and export documents are available for global customs clearance.
Q3: What is the difference between STPP and other phosphate additives?
A: STPP has stronger water retention and emulsifying ability than common phosphates. It features fast dissolution, stable performance and no bitter taste, which greatly improves the taste and yield of meat and seafood products.
Q4: Do you support customized packaging and private label?
A: Yes. We support customized packaging, private logo labeling and flexible packing specifications to meet different market and brand needs.
Q5: What is your MOQ and delivery time?
A: MOQ is 1 ton. In-stock goods can be delivered in 10–15 days, and bulk production orders take 3-5weeks days.
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