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   Linde Dry Ingredient Chilling Solutions Can Help Bakeries On The Rise
by Linde North America
Posted: Tuesday, March 10, 2015 at 3:28PM EDT

MURRAY HILL N.J. and NEW PROVIDENCE, N.J. -- Consistent temperature of dry ingredients at the mixer helps achieve repeatable batch-to-batch quality, and as baking operations grow, maintaining that quality remains a priority. Linde LLC customizes cryogenic dry ingredient chilling systems that can control the temperature of dry ingredients to +/- 1 degree F of the setpoint at the mixer.

Flour is often the most unpredictable, yet important, ingredient in bakeries, and gluten-free flour can add another level of challenge to dough handling characteristics for any bakery. By cryogenically pre-chilling flour or other dry ingredients as they are pneumatically conveyed to the mixer, more consistent quality can be achieved in dry-mix recipes and dough mixing.

Traditional mixer chilling systems that use water, ice or CO2 snow horns on top of the mixer can't deliver the same cooling efficiency and are more variable because they add moisture to the dough and require longer processing times.

The dry ingredient chilling system from Linde chills ingredients in the transfer line using liquid carbon dioxide (CO2). "It can be used within several applications including gluten-free products and provide a variety of benefits," says Ed Cordiano, Linde program manager for Bakery & Prepared Foods.

Advantages of Cryogenic Flour Chilling

  •     Increased production rates through improved hydration and machinability of the dough
  •     Improved efficiency through shorter processing times
  •     Higher profits through less wasted dough
  •     Eliminates handling of bagged ice

The Linde food team helped Coles Quality Foods, Inc.® (Grand Rapids, Michigan) upgrade to the Linde dry ingredient chilling system to achieve more consistent temperatures at the mixer resulting in improved dough handling characteristics for forming operations. Coles offers a complete line of frozen bread – including mouthwatering Big Texan toast, cheesesticks and breadsticks – and distributes products nationwide. The breadsticks include Coles' signature "twist," produced through an exclusive extrusion and forming process.

With the new cryogenic chilling system, liquid CO2 is injected as flour is conveyed to the mixer from an outdoor silo through a four-inch line. The temperature of the flour is monitored and a feedback system controls the precise injection of CO2 to achieve a consistent flour temperature within +/- 1 degree F of the setpoint. The use of cryogenics to chill the flour at Coles provided improved mixing operation, eliminated variations associated with ice chilling, and reduced product losses and worker safety issues by eliminating the need for water ice at the mixer.

Sugar, Spice and Gluten-Free Flour
The Linde dry ingredient chilling system can be used to chill any dry ingredient including, sugar, spices and gluten-free flour. Prior to system installation, operating parameters for any new ingredient can be validated at Shick's test laboratory in Kansas City, Missouri through an agreement with Linde. (Video link: "Shick USA In-line Product Chilling.")

The Linde food team performs in-plant assessments and works with food processors to develop optimal solutions. For more information, see Linde (www.lindefood.com), or call: 800-755-9277.

Linde LLC supports the Global Food Safety Initiative (GFSI) and the advancement of food safety. Linde has a Food Safety Management System in place for all bulk carbon dioxide (CO2) plants and air separation facilities supplying the food & beverage industry in North America. In June 2012, Linde became the first supplier to certify all of its CO2 plants to a benchmarked GFSI scheme, FSSC 22000 (Food Safety System Certification).

About Linde LLC in North America
Linde LLC is a member of The Linde Group. In the 2013 financial year, The Linde Group generated revenue of USD 23.1 bn (EUR 16.655 bn), making it the largest gases and engineering company in the world with approximately 63,500 employees working in more than 100 countries worldwide. The strategy of The Linde Group is geared towards long-term profitable growth and focuses on the expansion of its international business with forward-looking products and services. Linde acts responsibly towards its shareholders, business partners, employees, society and the environment – in every one of its business areas, regions and locations across the globe. The company is committed to technologies and products that unite the goals of customer value and sustainable development.

For more information, visit www.lindeus.com

Source: Linde North America


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