of shrimp paste

Shrimp paste is a fermented condiment made from small shrimp (or sometimes other crustaceans) mixed with salt and left to decompose and cure over months. Also known as petis or belacan in Southeast Asia and terasi in Indonesia, this ingredient is a staple across the region. The paste has a dense, clay-like texture ranging from light tan to deep brown depending on the variety and fermentation duration. It possesses an intensely pungent aroma—described as funky, sulfurous, and umami-rich—that mellows considerably when cooked. The flavor becomes deeply savory and adds profound umami depth to dishes.

The production process involves salting small shrimp and allowing natural fermentation through bacterial action. Regional variations exist: Thai nam pla (fish sauce) is liquidy, while Indonesian terasi tends toward a thicker paste consistency. Vietnamese mắm tôm is similarly fermented. The ingredient's potency is legendary; a small amount transforms entire dishes, making it essential in Southeast Asian cuisine despite its challenging raw aroma.

Shrimp paste functions as a foundational flavoring agent in Southeast Asian cooking, particularly in Thailand, Indonesia, Vietnam, and Malaysia. It is essential in curry pastes, dipping sauces (nam pla dip), stir-fries, and soup bases, where it provides layered umami complexity. A small spoonful is typically diluted in other ingredients rather than used raw due to its intensity. The paste is often toasted briefly in a dry pan or wrapped in foil and heated to mellow its raw pungency before addition to dishes. It pairs exceptionally well with aromatics like garlic, chilies, and lime, and is indispensable in classic preparations such as Thai green curry, Vietnamese caramel dishes, and Indonesian sambal. When cooked thoroughly, the aggressive aroma transforms into subtle, savory depth that enhances rather than overwhelms.