Mắm Ruốc Loại 1 is a traditional Vietnamese fermented paste made from small marine shrimp and produced by the Bà Ba brand in Long Điền. The product originates from Bà Rịa–Vũng Tàu Province which is known for its fishing industry and seafood processing tradition. Its main ingredients are fresh small shrimp and salt while the recipe may also contain sugar and a flavor enhancer to balance the saltiness. The shrimp are cleaned, ground, and left to ferment naturally with salt. During fermentation their proteins break down into amino acids responsible for the pronounced umami flavor. The finished product has a thick and uniform texture and a dark pinkish-brown to purplish-brown color. Its aroma is strong and characteristic of fermented seafood products. The flavor is intensely salty with subtle sweetness and a long finish. The paste is used as a seasoning in cooked dishes or as a base for dipping sauces served with noodles, boiled meat, vegetables, and rice dishes.