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Du Pont Engineering Polymers : 08 March, 2005  (Company News)
Industrial baking tins made of DuPont
Benefits encountered by bakeries after switching to plastic include no requirement for coating of the tin, potential energy savings through shorter or reduced heating times, no possibility of corrosion over time and overall weight reduction of the tins, facilitating handling. Specialist bakeware moulders UBW, based in Brecht, Belgium, developed and produce Thermx® PCT baking tins.

In order to extend its lifetime, a metal tin is often coated – a process which requires the tin to be taken out of service. Plastic tins made with Thermx® PCT, on the other hand, can withstand 6-10,000 baking cycles without any further requirement for coating or greasing. In addition, when used in certain ovens, the plastic tins can lead to a reduction of cooking time – reductions of approximately ten percent on a 45 minute baking cycle have been observed during tests with optimised oven-temperature profiles – or up to a ten percent reduction in oven temperatures. All of which means reduced energy consumption, mainly due to the fact that the plastic absorbs less heat than metal. These benefits, coupled with a reduction in weight of the tins of at least 10-20 percent, and the avoidance of corrosion during cleaning with water, mean that plastic are tins are both an attractive and efficient option for bakeries.

According to Ernst Poppe, European development leader of the industrial food processing applications programme at DuPont Engineering Polymers: “30 billion kilos of bread are baked in Europe every year, 10 billion of which are in industrial baking tins. The seven million tins used in industry represent a considerable market opportunity Thermx® PCT!”

One bakery already convinced of the merits of plastic is UK-based David Powell Bakeries Ltd. Having used baking cups, made of Thermx® PCT, for ranges of its muffins for over a year, the bakery has seen cost savings in terms of maintenance and tin usage. “Metal trays need to be periodically sent away to be cleaned or recoated, whilst the plastic cups can be cleaned by hand in the factory – saving us time and money. Furthermore, as a lot of our production is still manual due to the range of specialty muffins we produce, their ease of handling, thanks to a reduction in overall weight, has been welcomed in the bakery,” says David Powell, owner and managing director. An additional benefit, noted during the cups use at the bakery, is the reduced time required for the baking cups to cool: “The cups are cool enough to be emptied after only 10 minutes, meaning we can put them back in the baking cycle even faster and require fewer of them overall.”

UBW has been involved in the development and manufacture of baking tins for around four years. In its quest to meet industry demand for cleanable tins which fully conform to HACCP (Hazard Analysis and Critical Control Point) standards, the company has driven the development of polymer-based products with their improved resistance to water and detergents. Its entire range of polymer baking tins is designed to complement existing baking equipment and is life-time tested in real baking conditions.

DuPont Thermx® PCT is a high-temperature polyester and a recent addition to the DuPont portfolio of high performance polymers. Among the attributes and features that make it particularly suitable to the baking industry, are the material’s added heat resistance and dimensional stability. In addition, all Thermx® FG grades, which have excellent surface appearance, are suitable for repeated-use, food-contact, US FDA microwavable housewares applications.
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