Wijaya Putra University (UWP) Surabaya has once again demonstrated its commitment to supporting the community with practical and useful innovations. This time, Lecturer of the Faculty of Mechanical Engineering UWP, Slamet Riyadi, ST., MT, together with the Dean of the Faculty of Engineering, Ong Andre Wahju Rijanto, ST., MT, and the product design and analysis team, have succeeded in creating a 50-liter Cow's Milk Pasteurization Machine.

This innovation emerged as a response to the increasingly rapid development of technology, where the need for machines to support industry and households is increasing.

"We have succeeded in creating a Cow's Milk Pasteurization Machine that can process 50 liters of milk per hour or 400 liters a day," said Slamet Riyadi.

This machine has sophisticated technology, equipped with two mixers made of Stainless Steel 304. The first mixer consists of three bodies, which function to hold milk, water, and as a heating place, while the second mixer is tasked with cooling the processed milk. The stirring system on the first mixer uses a tiered paddle that is rotated by an Oriental Motor, allowing the milk to be stirred evenly during the heating process.

"This innovation ensures that milk is pasteurized at a temperature of 70-80°C with continuous stirring, ensuring the quality and cleanliness of the milk," added Slamet.

Not only that, after the heating process is complete, the milk is automatically flowed to the second mixer to be cooled quickly. This process is accelerated by the circulation of cooling water regulated by the pump motor, so that the milk is ready to be packaged safely and hygienically.

This machine is also equipped with a sophisticated electrical system that allows the production process to run automatically, from heating to filling milk into bottles.

"With the help of a conveyor, the milk bottles automatically move and stop when passing the sensor, then are filled with milk in just 15 seconds per bottle," explained Slamet.

This innovation not only makes the pasteurization process faster and more efficient, but also more hygienic because it minimizes direct contact with human hands. After going through a series of tests at the SGS Indonesia Testing Center, the results showed that milk pasteurized with this machine meets the consumption safety standards according to BPOM regulations.

In his presentation to milk sales partners and students of the UWP Faculty of Mechanical Engineering, Slamet revealed that this machine is able to overcome various problems faced by small milk entrepreneurs, such as the unpleasant aroma of milk and low production capacity.

According to one of the partners, Achmad Yamuhaimin from Trenggalek, this machine is able to maintain the temperature and stir the milk automatically, so that the quality and taste of the milk produced are more consistent.

Meanwhile, Sutiah, a CAOSU beverage entrepreneur, expressed her hope that by using milk pasteurized by this machine, the excessive sweetness in her product could be reduced, so that it would be more in line with consumer tastes.

At the end of the presentation, the processed milk was distributed to 50 Jujitsu Dojo Wijaya Putra athletes, and they agreed that the taste of the milk produced was savory and very satisfying.

This Cow's Milk Pasteurization Machine innovation is not only a solution for milk entrepreneurs, but also real evidence of Wijaya Putra University's contribution in supporting the progress of the local industry through practical and high-quality technology.