No Ice Age in Frozen Foods

Frozen food convenience and advanced technology resonate with consumers, even post-recession.

By Diane Toops, News & Trends Editor

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Although the frozen TV dinner made its debut in the 1950s, sales of frozen meals and entrees didn't proliferate until the 1970s, when the home microwave gained popularity. Mom's new microwave became both a thawing device and cooker, combined for convenience, and set her free from the stove.

The recent tough economy has not hurt frozen foods. As consumers returned to dining at home rather than at restaurants, frozen food sales grew. When consumers do eat out, they favor fast-food dining, which uses heavy amounts of frozen foods, according to Grant Thornton, the Chicago-based accounting and business advisory firm. Even high-end restaurants have jumped on the bandwagon. At the Fat Duck, a three-Michelin-star restaurant in England, Birdseye frozen peas are used in its pea mousse because they are processed so much younger and faster than fresh peas, reports Slate, a popular online magazine.

According to market research published in April 2009 from Packaged Facts, Rockville, Md., U.S. retail sales of frozen foods for 2008 totaled just less than $51.8 billion, which was a 6.5 percent increase over sales in 2008. During the 2004-2008 period, sales rose 25.4 percent, or $10.5 billion, overall, for a respectable compound annual growth rate (CAGR) of 5.8 percent. The frozen breakfast foods classification enjoyed the highest CAGR (7.9 percent) during the period.

As for the future, frozen foods sales are expected to increase 25 percent by 2013, up to $64.8 billion – whether or not the world economy improves. Analysts consider them "recession proof," and expect frozen foods to be buoyed by new convenience and health-targeted introductions. This dual aim of combining healthier recipes – in line with the overall consumer trend – with the convenience of frozen foods, is expected to be strongest in breakfast foods, vegetables, appetizers, snacks and sides.

Most recently, calorie-controlled, lower sodium, high-fiber entrees are sizzling. In fact, some frozen foods are healthier than food preserved through other methods. Freezing prevents the invasion of food by micro-organisms without chemical additives, heat sterilization or loss of nutrients, and using stabilizers can conserve the taste with little to no loss of flavor.

Delivering on texture and taste
"The main challenge in developing frozen foods is delivering on product texture and taste after a food has been cooked, frozen, pushed through a distribution network, brought into the home, then thawed and microwaved," says Diana Briceno, marketing manager–wholesome at National Starch Food Innovation (www.nationalstarch.com), Bridgewater, N.J. "After all that, the product needs to look and taste like it has just been cooked."

The freezer is a harsh environment for food systems. Ice crystals can form in a food product during freezing, which has a negative impact on the product's appearance and texture. Some ingredients, such as flours and native starches, that often are preferred for taste, opacity and a clean label declaration, do not hold up in the freezer. They easily form a gel upon freezing, causing sauces that should deliver a silky, smooth texture to become grainy and watery.

"Water management in a frozen food system is critical for the success of that product," says Leslie Carr, National Starch's senior associate in savory applications. "If the water is not managed properly through the application of texturizing ingredients that can withstand the rigors of freezing and thawing, then the water is released from the food during storage. That is syneresis," she explains. "Typical examples can be found in the home when thawing homemade sauces and entrees like lasagna. After thawing, an unsightly watery mass can be found at the top of the container."

Frozen MultiserveNational Starch's Novation line can help manufacturers develop clean-label frozen products while controlling syneresis. Two product lines have application in frozen foods. "The Novation Prima range of functional waxy maize starches increases freeze-thaw stability, so the product can be frozen and thawed without losing its appealing visual and textural properties," explains Briceno. "These starches perform just like modified starches but can be simply labeled as ‘corn starch.' Novation rice starches are a second option. They also provide freeze-thaw stability and can be simply labeled as ‘rice starch.' Both products maintain their structural properties and functionality throughout the process, withstanding the cooking and freezing process at the manufacturer, and thawing and microwaving in the home."

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