Liwayway, China

Liwayway

Shanghai, China (2020)

Liwayway is a company specialising in the food industry, known for its wide range of snacks and beverages.
Originally from the Philippines, the company has established itself in China since investing in 1993. Liwayway’s main products include the popular “Oishi” range of snacks such as puffed snacks, potato chips, candy and chocolate products.
It also offers the “Da Hu” range of fresh fruit juices and the “Gao Le Gao” range of convenience foods.

Their main concern is to address the issue of grease emissions to meet local discharge standards.

Liwayway has chosen Halton Solutions for the ventilation of five of their food processing facilities.

See Oishi website

The challenges of Food Processing facilities or how to address grease emissions issues

Industrial scale food manufacturing processes are characterised by non-traditional, typically custom-designed cooking equipment for both their capacity and power requirements. They are often based on a unique form of cooking, such as steaming or frying. These processes generate significant loads of heat, mixed with large volumes of smoke, steam, and grease.

Due to the large size and height of the cooking equipment, and the use of lifting mechanisms or conveyors, the exhaust systems are often installed higher. This makes it more challenging to efficiently remove pollutants, and calls for bespoke systems with custom dimensions, shapes, and features.

A high level of hygiene is a requirement for food processing facilities. Air, if handled incorrectly, can spread contaminants inside facilities and emit odours outside that can become an issue in residential areas. Many hygiene issues experienced at food processing facilities can be traced back to inefficient and unhygienic ventilation systems.