What Is Tapioca Starch?

For many people in the U.S., mention the word “tapioca” and perhaps the only association that comes to mind is tapioca pudding. Not many people outside the tropics may fully understand what tapioca actually is or where it comes from. However, tapioca is a staple for many people throughout the world and has virtually changed the diets of countless populations. Tapioca starch is the key ingredient in tapioca pudding, but using those little granules in a custardy dessert is just the very top of an immense culinary iceberg. Learn more about tapioca starch, where it comes from and how it can revolutionize your cooking.

What Is Tapioca Starch?

Tapioca starch is the starch extracted from tapioca root. Tapioca starch is similar in appearance to that of corn, potato and other similar starches - bright white and almost ethereally fine. A light puff of air will send bursts of powdery clouds into the air.

Tapioca starch is an amazing thickening agent that gives soups, stews and sauces a silky texture. It’s also a lot more stable than the more common cornstarch, which breakds down after several hours, making your sauce runny. That doesn’t happen with tapioca starch! You can come back to a dish several days later and still be rewarded with a thick, velvety mouthfeel.

Besides being a more stable thickener, tapioca starch also adds a particular texture to sauces and custards, giving them an almost slippery consistency.

In greater proportions, tapioca starch can make foods bouncy, springy, chewy or stretchy. It is an important ingredient in many gluten-free baking mixes as it replicates the chewy texture of gluten (tapioca is naturally gluten-free). In many Asian cuisines, tapioca starch is used to make satisfyingly chewy desserts. It’s also the secret ingredient in the bubble pearls or boba you find in Taiwanese-style milk teas.

Tapioca starch has a different effect when used as a coating for fried foods. Instead of becoming slippery, it creates an exquisitely crunchy crust that will stay crunchy for a long time. Imagine the same beautiful crunch you hear when eating a potato chip but while biting into a chicken tender. That’s the magic of tapioca starch.

What Is Tapioca Made Of?

Tapioca is a long, thick root with a brown, papery, bark-like skin. Certain specimens can be several feet long! Like many root vegetables, tapioca is starchy. In fact, it’s very starchy - starchier than potatoes, even. As such, it’s an ideal vegetable from which to obtain pure starch. Starch has been artisanally extracted from tapioca roots for thousands of years, usually by finely grating the root, thoroughly washing it with clean water to remove the toxins (more on that below) and extracting the white starch.

Tapioca root originated in the Americas and was a staple of the original inhabitants of the Caribbean islands, the Taino and Arawak peoples. As well, it continues to be a staple among many indigenous Amazonian tribes, who have used this root to make everything from flatbreads and gruels to alcoholic beverages. When Spanish and Portuguese colonizers invaded the Americas, they took these roots on their land-grabbing expeditions throughout the world. As a result, tapioca roots became firmly embedded in the cuisines of West Africa, Southeast Asia and the Indian subcontinent.

The root goes by many names, including manioc, cassava and yucca. You may have heard these terms if you’ve ever been to a Latin American restaurant or eaten Southeast Asian sweets.

Is Tapioca Poisonous?

Tapioca is poisonous when raw, but perfectly safe to eat and very nutritious when fully cooked or processed. Most tapioca starch currently on the market is safely made in factories and presents no risk of poisoning.

While you may be tempted to DIY your own tapioca starch from fresh tapioca roots, we highly advise against it. Remember that native peoples have millennia of passed-down knowledge on how to safely process tapioca, and the risk of cyanide poisoning from incorrect handling is very real.

Is Tapioca Gluten-Free?

Tapioca is indeed gluten-free, making it a popular stand-in for wheat flour in many recipes. Tapioca flour is also a key ingredient in the wide, flat rice noodles used when making the Thai dishes Pad See Ew and Drunken Noodles.

Tapioca Flour vs. Tapioca Starch

Tapioca starch is sometimes referred to as tapioca flour, but that’s a misnomer, as flour implies that the whole root or grain is milled. A starch, on the other hand, is extracted from the root or grain. In short, tapioca flour and tapioca starch are the same thing.

Tapioca Starch Uses

You can use tapioca starch in very much the same ways you use other types of starches. It is a cup-for-cup replacement for cornstarch, and an excellent substitute if you are cutting out corn or other grains from your diet. It is an ideal pantry staple for people who observe Passover, for instance.

In Sauces

You can use it to thicken a creamy sauce or pan gravy. If you find that your soup is just a little too watery, tapioca starch will give it a sensuously thick consistency. Like all starches (including cornstarch), you cannot add it directly to hot liquids or it will immediately form clumps. Instead, mix the tapioca starch with a little bit of cool water in a small bowl to form a slurry, which you then stir into your sauce, gravy, soup or custard. One to two teaspoons for a quart of liquid is typically enough to coat the back of a spoon. Start with just a little bit and then add a little bit more if you think it needs it.

For Baking

For baking, it’s best to follow recipe instructions. You would typically whisk the tapioca starch with other ingredients (including other gluten-free flours) before adding liquids. However, quantities can vary from recipe to recipe. Tapioca starch is used on its own or in combination with other starches or flours in many Asian and Latin American recipes. The techniques can be different from typical European or North American baking styles, though. Brazilian cheesy breads called pao de queijo, for instance, are made by cooking tapioca flour with butter and milk to form a paste before baking.

When Frying

When frying foods, you can dredge your meats or vegetables in a light coating of tapioca flour to give them a crisp exterior. You can also make a tapioca starch paste to make a super crunchy coating. This is a technique commonly used in Chinese cuisines and the secret to super crunchy Chinese-American favorites, like General Tso’s Chicken. You can also add tapioca starch to breading or flour mixtures to improve the crunchiness, and tapioca starch is an excellent addition to batters. Next time you make fish and chips or onion rings, try substituting some of the wheat flour with tapioca starch. You will end up with the crunchiest crusts you’ve ever made!

Make Your Own Boba

You can also make your own boba or bubble pearls using tapioca starch. There are many recipes and videos online with exact quantities, but the general idea is to lightly moisten the tapioca starch with water to form a thick dough. You then roll little pearl-sized balls of this dough in your fingers and gently drop them in a pot of simmering water until they float to the top.

Buying and Storing Tapioca Starch

As previously mentioned, commercially available tapioca starch is perfectly safe to eat and a staple in many parts of the world. You can sometimes find it in grocery stores by the cornstarch in the baking aisle. Otherwise, you can easily order tapioca starch online from major retailers, including Amazon. You can also find tapioca starch in many Asian grocery stores.

Latin American grocery stores also carry tapioca starch, but it may be labeled differently. Look for packages of snowy-white powder labeled yucca starch or cassava starch. Tapioca starch is very popular in Brazilian cooking, and you are guaranteed to find it at Brazilian markets usually as amido de mandioca, fécula de mandioca or polvilho. However, do pay attention to the type you buy. Make sure the label says "doce" (sweet) and not "azedo" (sour). The sour type is fermented and slightly acidic. To add to the confusion, this type of starch is used to make a Brazilian flatbread called tapioca. If the selection is confusing, ask an employee to point out which variety you should get to make pao de queijo (cheesy breads).

Tapioca starch should be stored like any other starch or flour. Keep it in an airtight container and make sure it’s kept away from moisture or humidity, as this will make the tapioca starch clump.

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