FDBusiness.com

Steam Expertise From Bürkert Reduces Costs in Pet Food Production

 Breaking News
  • Irish Supermarkets Benefit From the Christmas Spirit The latest grocery market share figures from Kantar Worldpanel in Ireland, for the 12 weeks ending 31 December 2017, reveal that shoppers spent an extra €90 million on groceries over the festive period. David Berry, director at Kantar Worldpanel, comments: “Over the Christmas period the average household spent a record €1,532 on groceries – an increase of [...]...
  • Britvic Continues to Put Health at the Heart of its New Sustainable Business Programme Britvic has launched ‘A Healthier Everyday’, its new sustainable business programme which builds on its commitment to: help consumers make healthier choices; support the well-being of communities; and minimise its impact on the planet. The creation of ‘A Healthier Everyday’ follows a review by the company into how it can ensure that its sustainability programme is [...]...
  • Bayn Europe Sets Up Chinese Subsidiary For Sugar Reduction Bayn Europe AB has signed a joint venture agreement with real estate development company HuaHe International Asset Management to introduce sugar reduction to the China market. Both partners agreed on a co-operation model and mutual commitments for the set up of joint venture. Bayn will hold 65% of equity and HuaHe will hold 35%. Further to [...]...
  • Ishida X-ray Flexibility Ensures Premium Product Quality Ishida X-ray inspection technology is helping to maintain the premium quality reputation of one of Russia’s most popular traditional snack brands. The ‘ROSTRAGROEXPORT’ company was founded by Mr Boris Aleksandrov in 1995, who spotted a niche in the Russian food market for a good quality traditional curd snack.  Its ‘B.Y. Aleksandrov’ brand, named after the company’s [...]...
  • ‘Latte Levy’ – Coffee Drinkers Want to Go Green, But Price is a Barrier As the UK Government aims to eliminate avoidable waste with the announcement of its 25-Year Environmental Plan, Mintel research reveals that Britain’s coffee shop drinkers are happy to do their bit for the environment, but not at any cost. 40% of out of home hot drinks consumers wouldn’t mind paying extra for drinks served in 100% [...]...

Steam Expertise From Bürkert Reduces Costs in Pet Food Production

February 13
11:16 2014

As with human food, the production standards laid down for pet foods are rigorous, requiring manufacturers to ensure that production processes are carefully controlled in order to deliver a consistent, high quality product. A large part of achieving this is dependent on the cooking process, which involves the controlled use of steam – an area where Bürkert Fluid Control Systems is applying its considerable expertise to maximise efficiency and reduce costs.

Designing and maintaining a steam system which can deliver precise temperature control efficiently and safely requires an integrated approach using products which are carefully specified for the application. Bürkert has considerable expertise in designing complete packages as well as offering practical advice about crucial calculations and design specifications.

Bürkert has developed a wide range of control valves, pressure, temperature and flow sensors which can all be used to develop an efficient and accurate steam process control system. It has also produced a detailed Steam Site Guide, which can be downloaded from the company website, to help designers and maintenance engineers ensure that both new and existing facilities are properly managed.

Within the pet food industry, the cooking process used in 95 percent of all production is extrusion, a process which includes a pre-conditioner, the extrusion cooker and a die/knife assembly which shapes the final product. Prior to this, the raw ingredients are carefully blended, mixed and then ground, in order to produce a substrate that can be cooked and often dried to produce the finished product.

The pre-conditioner is designed to increase the temperature and the moisture content of the substrate by the addition of steam and water. The steam is fed in to the bottom of the pre-conditioner and must be carefully controlled in order to ensure a uniform distribution and even temperature rise within the substrate. The steam should be free from condensate and therefore will only contribute approximately 5 percent moisture to the substrate; to achieve the desired level of 10 to 30 percent, water is added from the top of the pre-conditioner.

In most applications, the steam is carefully controlled to elevate the substrate temperature to between 70 and 90 degrees C before it is discharged into the extrusion cooker. A typical example would be the Bürkert type 2301 globe control valve, combined with a type 8694 TopControl positioner. Following the Bürkert philosophy for modular components, the stainless steel valve is available in flange, threaded or welded formats, while the type of valve controller can be configured to suit each installation.

Once the moisture level has been adjusted, the substrate passes to the extruder itself, which uses a rotating screw to work the substrate into a dough and also increase the pressure and temperature of the dough using a combination of friction and steam energy. By using a combination of sensors connected to a controller, such as the Bürkert type 8619 MultiCELL controller, the process can be monitored and adjusted to ensure that the optimum parameters are maintained. Extrusion temperature is often set at a critical control point (CCP) which manufacturers require as part of their food safety programme, which is designed to reduce the specific risk of Salmonella. Using a properly controlled system with data-logging facilities, will help to ensure that the programme is consistently implemented and the evidence recorded. However, heating costs need to be properly managed as well, so finding the right balance between heat produced mechanically and heat from steam is essential to maximise the efficiency of the process.

Pet food safety is also a critical aspect of the production process that demands reliable and accurate control of the cooking process. Failure to meet specific legislation can have serious consequences while operating an inefficient production process can significantly affect the financial margins for the product. In both cases, proper steam management is crucial.

The process of generating, conveying and controlling steam is one which requires expert advice and engineering knowledge, otherwise, at best, the process is inefficient, but at worst, serious injury can result.

About Author

colin

colin

Related Articles



Food & Drink Business Conference & Exhibition 2016

Upcoming Events

  • January 16, 2018Sival Plant Production Trade Show
  • January 17, 2018Anfas Food Product
  • January 17, 2018Dutch Organic Trade Fair
  • January 19, 2018International Green Week
AEC v1.0.4

find food jobs

The Magazine

F&D Business Preferred Suppliers

New Subscriber





Subscribe Here



Advertisements