Anything Cornstarch Can Do, Potato Starch Can Do Better (2024)

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Add potato starch to your stir-fry and, in a matter of seconds, watch a loose sauce transform into a thick, burbling glaze. But the magic doesn’t end there: Potato starch also has the ability to give any number of proteins, likechicken andtofu, a crispy coating. It can also be kneaded into a noodle dough for bouncy, nearly translucentLoh Shi Fun. This humble starch knows no bounds.

While there are countlesstypes of starch out there—including cornstarch, tapioca starch, and more—potato starch in particular yields the crispiest potato pancakes andcrackly-coated calamari. But what exactlyis potato starch, and where do its magical powers come from? And how can you make the most of it in your cooking? Let’s find out.

What is potato starch?

If you’ve ever grated a pound of potatoes—say, for latkes—and soaked them in water until you’re ready to fry, you may have noticed some white, powdery stuff sinking to the bottom of the bowl. That, my friends, is pure potato starch. Do not dump it down the drain. When you’re ready to fry, incorporate the potato starch your spuds have shedback into the grated potato mixture to yield the crispiest fritters.

But you probably don't have time to grate and soak and strain a pile of potatoes every time you need some starch. (Do you?) It's easier to buy a bag of potato starch at the grocery store.Commercially available potato starch is produced in a similar way, just on a much larger scale: First, the potatoes are crushed to release their natural starches. Then the starch is dried to make the hardworking powder you’ll find in the baking aisle.

Potato starch vs. cornstarch

When used as a thickener, potato starch functions similarly to cornstarch. Often incorporated into dishes in the form of aslurry (starch dissolved in cold water), the potato starch particles swell and gelatinize, thickening sauces,puddings, custards, and more. But a few particular properties give potato starch an edge over its corny counterpart.

Potato starch has a lower gelatinization temperature thancornstarch, meaning it can thicken liquids faster when exposed to heat.If not fully cooked, cornstarch tends to leave behind residual, well, starchiness, whereaspotato starchgives sauces a glossier, silkier texture. Potato starch can be used as a 1:1 substitute for cornstarch in just about any recipe: Use it in a dry dredge to givemasala fried chicken a crispy shell, or add it to doughs or batters for snappier cookies and more tender baked goods.

Potato starch vs. potato flour

Though potato starch and potato flour might sound similar, these two ingredients are not interchangeable.

“Potato starch is the by-product of washed and peeled raw potatoes, dried into a very fine, white powder,” says cookbook authorHetty Lui McKinnon. Potato flour, on the other hand, is made from cooked potatoes, which are then dried and ground to a fine beige powder. As the potatoes cook, they release some of their starch, which gives potato flour a drier texture. “Potato flour is used more in baking, as a substitute for wheat flour,” says McKinnon.

Anything Cornstarch Can Do, Potato Starch Can Do Better (2024)

FAQs

Anything Cornstarch Can Do, Potato Starch Can Do Better? ›

Potato starch has a lower gelatinization temperature than cornstarch, meaning it can thicken liquids faster when exposed to heat. If not fully cooked, cornstarch tends to leave behind residual, well, starchiness, whereas potato starch gives sauces a glossier, silkier texture.

What does potato starch do? ›

One of the main uses for potato starch is as a thickener in a variety of recipes because it absorbs water effectively. However, extreme heat may cause the starch to break down, meaning it may not absorb moisture properly, which hinders its thickening effect.

Is potato starch healthier than flour? ›

Potato flour is of course much higher in nutritional value than starch. Plus it's rich in vitamins, minerals, protein, and fiber, making it a healthier, gluten-free alternative to wheat flour. It does have a much stronger potato flavor than potato starch.

What does cornstarch do? ›

Cornstarch is often used as a thickening agent when added to soups, stews and gravies. Denser than flour, less cornstarch is needed to thicken a liquid to the desired consistency. Here's how it works: when cornstarch is added to a recipe, the starch molecules work to absorb water and thicken the mixture.

What role does the cornstarch play in this sauce What will the cornstarch do? ›

Cornstarch imparts a glossy sheen to the liquids it thickens, so it tends to be used more in sweet sauces and pie fillings than in savory sauces and gravies. Still, it works really well, and it's easy to use: For each cup of liquid, you want to thicken, start with 1 tablespoon of cornstarch in a small bowl.

Which is healthier, cornstarch or potato starch? ›

Nutritional Value: Organic potato starch is generally deemed to be more nutritious than organic corn starch because of its high fibre content. If you're seeking to augment your dietary fibre intake, organic potato starch might be the preferable alternative.

What is the healthiest thickening agent? ›

Easy-to-access alternatives are wheat flour, arrowroot flour, and rice flour. These are good alternatives to cornstarch because they are more nutritious and contain fewer carbohydrates and calories. Xanthan and guar gum are much stronger thickeners than cornstarch, but they can be harder to obtain and use.

What is the healthiest starch to eat? ›

Healthy examples of starch include whole grains, beans, legumes, bananas, and cooked and cooled starches. Starchy foods may not always get respect, but they have a crucial role in your diet. They can be nutritious, versatile, and tasty, but choosing the right starchy foods can be overwhelming.

What is the healthiest starch to cook with? ›

Tapioca starch or cassava flour.

Cassava flour is more nutritious and has more fiber than tapioca starch. This gluten-free option is mostly used for thickening foods. Similar to arrowroot, you'll use twice the amount of tapioca starch (or cassava flour) as cornstarch in a recipe.

Does potato starch raise blood sugar? ›

Some starches, like those found in potatoes, are higher on the glycemic index, which means they break down more easily, leading to faster uptake of glucose and a potential blood sugar spike. But not all starch is created equal. Certain types can actually be part of a glycemic-friendly diet.

What does eating a spoonful of cornstarch do? ›

There is little nutritional benefit to cornstarch, and it can potentially raise blood sugar. Eating cornstarch in small amounts is OK, but it should be avoided in large quantities due to its highly processed nature and lack of essential vitamins or nutrients. U.S. Department of Agriculture.

Is fried chicken better with cornstarch or flour? ›

My not-so-secret tip to the best fried chicken is a combination of FLOUR, CORNSTARCH, and BAKING POWDER. When mixed with the flour, the cornstarch makes the flour coating crispier and gives it that golden brown color! (It has to do with prevention of gluten development.)

Does cornstarch expire? ›

Good news: Cornstarch is one of those baking staples that can last for years and doesn't really expire. If cornstarch does go bad, it's usually because moisture or pests have been able to get to it—and you'll notice it immediately. It may have an off taste or flavor (think sour or "funky"), or an off color.

What does cornstarch do to meat? ›

Cornstarch is the foundation of Chinese cooking and this magical pantry ingredient is commonly used to thicken soups, stews and sauces. It's also the primary ingredient in making a slurry to coat the meat. Chen says cornstarch helps the meat retain moisture while it cooks, thus yielding a silkier texture.

Why mix cornstarch with cold water? ›

To thicken hot liquids, first mix cornstarch with a little cold water until smooth. Gradually stir into hot liquid until blended.

What does cornstarch do to your body? ›

Consuming high amounts regularly may increase your blood sugar levels and be associated with adverse effects on heart health. However, it can fit into a healthy, well-rounded diet if used in moderation and enjoyed alongside a variety of other nutrient-dense foods.

What happens when you cook on potato starch? ›

Potato starch has a lower gelatinization temperature (140–149°F/60–65°C) than cornstarch (144–162°F/62–72°C), so it tends to thicken liquids faster than cornstarch when heat is applied. At the same time, it tolerates higher temperatures over short periods of cooking than cornstarch.

What does removing potato starch do? ›

Starch rich potatoes usually turn soft and crumbly, while frying or baking. So, if you are making delicacies wherein you want the potatoes to be crispy and crunchy, then removing starch is the best way to keep your wafers, fries, crispy potatoes, hash browns crisp and delicious.

Is potato starch a good thickening agent? ›

Potato starch has a lower gelatinization temperature than cornstarch, meaning it can thicken liquids faster when exposed to heat.

What are starchy potatoes best for? ›

Starchy potatoes are fluffy and absorbent which makes them great for baking and frying so use them to make crispy potatoes, hot chips, wedges, mashed potato cakes or hash browns. They can also be mashed but are susceptible to becoming stodgy when overworked.

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