Tapioca Starch / Flour
What it is
Pure starch extracted from cassava (Manihot esculenta) root. "Tapioca starch" and "tapioca flour" are the same thing. Bright white, fine. Gluten-free. (Not to be confused with whole cassava flour — see below.)
How it's made
Cassava roots are grated, washed, and the starch settled and dried. A fermented, sour variant — Brazilian polvilho azedo — is left to ferment, gaining acidity and extra expansion power.
Flavor profile
Neutral; texturally it gives a uniquely clear, glossy, slightly stretchy/chewy gel.
Culinary uses
Bubble tea pearls (boba) — tapioca cooked into chewy spheres; Brazilian pão de queijo (cheese bread; the sour polvilho gives the stretchy, hollow chew); Southeast Asian sweets, kuih, and puddings; a clear, freeze-thaw-stable thickener for pie fillings and sauces; and a key elasticity-builder in gluten-free baking (it adds stretch and chew that other GF flours lack). Its gel stays clear and stringy-elastic, sets soft, and survives freezing — but it can turn gummy if overused.
Regional variations
Brazil (pão de queijo, tapioca crêpes from the Northeast), West Africa (where cassava-derived gari/fufu dominate, though those are different cassava products), Southeast Asia (sweets, sago-style puddings), and the global boba phenomenon.
Cultural & historical context
Cassava, domesticated in the Amazon, became one of the developing world's most important calorie crops. Tapioca's processing — and the need to handle cassava's natural cyanogenic compounds in bitter varieties — represents another sophisticated Indigenous food technology.
Reference notes
Tags: `starch`, `gluten-free`, `tapioca`, `cassava`, `clear-set`, `chewy`, `freeze-stable`. Related ingredients: [Cassava Flour], [Arrowroot], [Potato Starch]. Related cuisines: Brazilian, Southeast Asian, West African. Suggested links: → Boba / bubble tea, → Pão de queijo, → Cassava Flour (distinct product).