Ingredient

Penicillium Roquefortii

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Source

Not animal-derived

Allergen

Role in food

This mold is primarily used as a flavoring agent in dairy products, especially blue …

What it is

Penicillium roqueforti is a mold species used to produce blue cheese. It is a naturally occurring mold that grows on rye and other grains, and is added to cheese curds to give them their characteristic blue veins, pungent aroma, and sharp flavor.

Why it's used

This mold is primarily used as a flavoring agent in dairy products, especially blue cheeses like Roquefort, Gorgonzola, and Stilton. It is also used in some dressings and dips to impart a savory, tangy taste.

Health notes

Penicillium roqueforti is generally recognized as safe (GRAS) by the FDA for its use in food. It is a natural component of many fermented foods and is not associated with adverse health effects when consumed as part of a typical diet. International bodies like EFSA have evaluated molds used in food production, and JECFA has evaluated certain mold-derived enzymes, but specific evaluations for P. roqueforti in this context may vary. There are no widespread controversies regarding its safety.

Allergen info

Penicillium roqueforti is not derived from any of the 9 FDA major allergens. It does not contain gluten.

Products containing Penicillium Roquefortii

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Kraft Heinz Foods Company Athenos, Crumbled Blue Cheese Cheese High in saturated fat — 25% DV per serving 357kcal 21.4Protein 28.6Fat 3.6Carbs Kraft Heinz Foods Company Gorgonzola Crumbled Cheese, Gorgonzola Cheese High in saturated fat — 25% DV per serving 357kcal 21.4Protein 28.6Fat 3.6Carbs Kraft Heinz Foods Company Creamy Blue Cheese Dressing Salad Dressing & Mayonnaise 517kcal 3.5Protein 51.7Fat 3.5Carbs Topco Associates, Inc. Gorgonzola Crumbled Cheese, Gorgonzola Cheese High in saturated fat — 25% DV per serving 357kcal 21.4Protein 28.6Fat 3.6Carbs Topco Associates, Inc. Blue Crumbled Cheese, Blue Cheese High in saturated fat — 25% DV per serving 357kcal 21.4Protein 28.6Fat 3.6Carbs Wal-Mart Stores, Inc. Buffalo Style Stuffed Chicken Meatballs Frozen Appetizers & Hors D'oeuvres High in sodium — 27% DV per serving 247kcal 15.3Protein 15.3Fat 15.3Carbs Family Fresh Foods Wisconsin Cheddar And Blue Cheese Spread Cheese High in saturated fat — 20% DV per serving 357kcal 14.3Protein 25Fat 17.9Carbs Bostonia Beverage Crumbled Gorgonzola Cheese Cheese High in saturated fat — 25% DV per serving 357kcal 25Protein 28.6Fat 3.6Carbs Hannaford Bros. Co. Pizza, Buffalo Style Chicken Pizza High in sodium — 43% DV per serving High in saturated fat — 22% DV per serving 207kcal 12.4Protein 8.3Fat 20Carbs Byerly Foods International Original Dressing, French Blue Cheese Salad Dressing & Mayonnaise 433kcal 3.3Protein 33.3Fat 26.7Carbs Safeway, Inc. Chicken Sandwich Wrap, Buffalo Style Prepared Wraps and Burittos High in sodium — 43% DV per serving 169kcal 7.8Protein 7.0Fat 18.3Carbs Safeway, Inc. Chopped Complete Salad Kit, Bacon Bleu Pre-Packaged Fruit & Vegetables 80kcal 3Protein 6Fat 4Carbs

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.