Where Can I Buy Cornstarch?
Cornstarch is readily available at a multitude of locations. You can easily find cornstarch at virtually any grocery store, including big-box retailers, neighborhood markets, and even some convenience stores. Online retailers also offer a wide selection.
Understanding Cornstarch: A Culinary Staple
Cornstarch, a fine, white powder derived from the endosperm of the corn kernel, is a versatile ingredient used primarily as a thickener in cooking and baking. Its neutral flavor and ability to create a clear, glossy finish make it a preferred choice for sauces, gravies, soups, and desserts. But its applications extend beyond the kitchen, finding uses in various household tasks and even industrial applications.
Where to Find Cornstarch: Brick and Mortar Options
The most common place to purchase cornstarch is your local grocery store. Here’s a breakdown of where to look:
- Baking Aisle: This is the primary location. Look for cornstarch near other baking staples like flour, sugar, and baking powder. Brands like Argo, Mazola, and store-brand versions are usually stocked here.
- International Foods Aisle: Depending on the store, cornstarch may also be present in the international foods section, particularly in Asian cuisine aisles where it’s commonly used in stir-fries and sauces.
- Bulk Bins: Some grocery stores with bulk sections may offer cornstarch, allowing you to purchase the exact quantity you need.
Beyond traditional supermarkets, consider these options:
- Big-Box Retailers (Walmart, Target): These stores offer cornstarch at competitive prices, often available in larger quantities.
- Discount Grocery Stores (Aldi, Lidl): These stores are worth checking for potentially lower prices on cornstarch, though brand selection may be limited.
- Specialty Food Stores: While less common, some specialty food stores may carry organic or non-GMO cornstarch options.
Online Retailers: Convenience and Selection
Shopping for cornstarch online offers convenience and a wider selection, especially for specific types or brands.
- Amazon: Amazon carries a vast array of cornstarch brands and sizes, from small boxes to bulk quantities. Read reviews to ensure quality.
- Walmart.com and Target.com: These retailers offer the same products available in their physical stores, often with the option for in-store pickup.
- Specialty Online Retailers: Websites specializing in baking supplies or organic foods often offer unique or hard-to-find cornstarch varieties.
Factors to Consider When Buying Cornstarch
When purchasing cornstarch, keep the following factors in mind:
- Quantity: Consider how often you use cornstarch and choose a package size accordingly. Larger quantities are more economical for frequent users.
- Brand: While cornstarch is generally a standardized product, some brands may offer finer textures or specific properties. Read reviews to compare.
- Organic/Non-GMO: If you prefer organic or non-GMO products, look for cornstarch that is certified accordingly.
- Price: Compare prices across different retailers to find the best deal. Unit pricing (price per ounce or pound) can be helpful for comparing different package sizes.
Understanding the Differences: Cornstarch vs. Other Thickeners
It’s important to understand how cornstarch differs from other common thickening agents:
| Thickener | Source | Texture | Appearance | Uses |
|---|---|---|---|---|
| Cornstarch | Corn Endosperm | Fine, Powder | Clear | Sauces, gravies, desserts, stir-fries |
| Flour | Wheat | Coarser, Powder | Cloudy | Sauces, gravies, soups |
| Tapioca Starch | Cassava Root | Fine, Powder | Clear | Desserts, fruit fillings |
| Arrowroot | Arrowroot Plant | Fine, Powder | Clear | Sauces, gravies, desserts |
Common Mistakes When Using Cornstarch
- Adding cornstarch directly to hot liquids: This can cause clumping. Always create a slurry by mixing cornstarch with cold water before adding it to hot liquids.
- Overcooking cornstarch: Overheating can cause the cornstarch to break down, losing its thickening properties and resulting in a thin, watery sauce.
- Using too much cornstarch: Using too much cornstarch can result in a gummy or pasty texture. Start with a small amount and add more gradually as needed.
- Substituting cornstarch directly for flour: While both are thickeners, they have different properties. Use a smaller amount of cornstarch than flour. A general rule of thumb is to use half the amount of cornstarch as you would flour.
Storing Cornstarch Properly
Proper storage is crucial to maintaining the quality of your cornstarch. Store it in an airtight container in a cool, dry place away from direct sunlight and moisture. Properly stored cornstarch can last for several years.
Frequently Asked Questions (FAQs)
Is cornstarch gluten-free?
Yes, pure cornstarch is naturally gluten-free as it’s derived from corn, which does not contain gluten. However, always check the product label to ensure it hasn’t been contaminated during processing, particularly if you have celiac disease or a severe gluten intolerance.
Can I use cornstarch to thicken cold liquids?
No, cornstarch requires heat to activate its thickening properties. Simply adding it to a cold liquid will not result in thickening. Always heat the liquid after adding the cornstarch slurry.
What is the shelf life of cornstarch?
When stored properly in a cool, dry place in an airtight container, cornstarch can last for several years. Check for any signs of clumping or discoloration, which may indicate spoilage.
Can I substitute potato starch for cornstarch?
While both are starches, potato starch has a stronger thickening power than cornstarch. If substituting, use slightly less potato starch than you would cornstarch. The flavor profile may also be slightly different.
Can I use cornstarch as a dry shampoo?
Yes, cornstarch can be used as a natural dry shampoo. Apply a small amount to the roots of your hair, let it sit for a few minutes, and then brush it out. It absorbs excess oil, leaving your hair looking cleaner.
Is cornstarch the same as corn flour?
No, cornstarch and corn flour are different products. Cornstarch is made from the endosperm of the corn kernel, while corn flour is made from the entire kernel. Corn flour has a more pronounced corn flavor and a coarser texture.
What are some non-food uses for cornstarch?
Beyond cooking, cornstarch has several other uses. It can be used to: soothe skin irritations, remove grease stains from clothing, polish silver, and even make homemade play dough.
What happens if I use too much cornstarch?
Using too much cornstarch can result in a gummy, pasty, or overly thick texture. It can also create a starchy taste in your dish.
Can I use cornstarch to prevent sticking when baking?
Yes, cornstarch can be used to dust baking pans to prevent cakes and other baked goods from sticking. It creates a smoother surface than flour and can help prevent browning.
Can I make my own cornstarch?
Making cornstarch at home is possible but time-consuming and requires specialized equipment. It involves extracting the starch from corn kernels through a process of grinding, washing, and drying. It’s generally more convenient and cost-effective to purchase it.
Does cornstarch have any nutritional value?
Cornstarch is primarily a source of carbohydrates and has very little nutritional value. It’s not a significant source of vitamins, minerals, or fiber.
Is cornstarch safe for babies?
Cornstarch is generally considered safe for babies when used externally, such as in baby powder. However, be cautious about inhalation as it can cause respiratory problems. Consult with a pediatrician before using cornstarch on a baby.