Shrimp Paste Guide: Belacan, Bagoong & Kapi Explained
Portuguese traders in the 16th century were horrified by what they found in Southeast Asian markets: jars of pungent, rust-colored paste that smelled like low tide. They called it “devil’s excrement.” Today, that same fermented shrimp paste is the secret weapon behind some of the world’s most crave-worthy dishes—and it’s become increasingly accessible to home cooks in Western kitchens. The paste goes by different names across the region, each version reflecting local preferences and fishing traditions that shaped entire cuisines.
Malaysia’s Belacan: The Backbone of Southeast Asian Flavor
Belacan is Malaysia’s answer to umami concentration. Made from tiny shrimp and krill pounded with salt, then left to ferment in the sun for weeks, it arrives at your kitchen as a dark, compact block that looks almost like clay. The Malaysian peninsula’s coastal towns, particularly around Penang and Johor, developed belacan production into an art form—the best versions come from specific fishing grounds where the shrimp are smallest and sweetest. You’ll recognize authentic belacan by its almost metallic shine and the way it crumbles rather than spreads. In Malaysian cooking, belacan isn’t just an ingredient; it’s a foundational element. Sambal belacan—belacan mixed with chilies and lime—appears on virtually every table, and it’s the backbone of laksa pastes, rendang spice blends, and satay dipping sauces. The key to using it is toasting: a quick dry-pan warm-up releases its complex, layered flavors and mellows the aggressive saltiness that catches newcomers off guard.
Filipino Bagoong: From Fish Sauce Alternative to Star Ingredient
Bagoong occupies a unique space in Filipino cooking—it’s simultaneously a condiment, a seasoning, and a statement about regional identity. Unlike belacan’s solid form, bagoong is paste-like, ranging from reddish-brown to nearly black depending on fermentation length and shrimp size. The Philippines produces two main styles: bagoong alamang uses tiny shrimp and is runnier, while bagoong isda incorporates larger shrimp and anchovies, creating a thicker consistency. Regions like Pampanga and Bulacan have their own bagoong signatures, fiercely defended by locals. Filipino cooks use bagoong differently than their Malaysian neighbors—it’s often served as a dipping paste alongside grilled fish or added directly to stews like sinigang, where it dissolves into the broth and becomes invisible while amplifying savory depth. Bagoong’s assertive funk is so integral to Filipino palates that many dishes taste incomplete without it. For Western cooks, starting with bagoong as a finishing touch rather than a base ingredient makes the transition easier.
Thai Kapi: The Subtle Player in Curry Pastes
Thailand’s kapi is the quietest of the three, but don’t mistake subtlety for weakness. Produced primarily in coastal provinces like Samut Sakhon and Chumphon, kapi tends toward a lighter color and smoother texture than its Malaysian and Filipino cousins. Thai producers often blend shrimp paste with additional ingredients like garlic and chilies, creating variations that are almost ready to use. Kapi’s real power emerges in curry pastes—it’s a non-negotiable component of red, green, and yellow Thai curries, where it works alongside galangal, lemongrass, and chilies to create that distinctive savory backbone. The paste also appears in nam pla (fish sauce) alternatives and in som tam (green papaya salad), where a small spoonful adds complexity without announcing itself. Thai home cooks often toast kapi in a dry pan before incorporating it into pastes, a technique that concentrates its flavor and makes it less challenging for uninitiated palates. The best kapi comes from artisanal producers who still use traditional sun-drying methods rather than industrial shortcuts.
If you’re new to shrimp paste, buy small quantities first—a little goes far, and your nose needs time to adjust. Start by toasting it gently in a dry pan, then mixing it into curry pastes or sambal blends where its intensity gets distributed. Within a few weeks of cooking with it, you’ll understand why Portuguese traders eventually abandoned their disgust: this stuff is liquid gold for any kitchen that wants real depth.
