Exploring viability and innovation requirements for novel salt production: a case study of kangen Beach, Malang Regency’s South Coast, Indonesia

Salt production in Indonesia primarily concentrates on the North Coast of Java and Madura Island, necessitating substantial salt imports despite the country’s extensive coastline. However, the deteriorating ecosystem on the North Coast impedes the expansion of salt ponds. Conversely, the South Coast of Malang Regency offers a cleaner environment yet still needs to be tapped for salt production due to topographical constraints. This study assesses the South Coast’s potential for salt production and underscores the crucial role of technological innovations in this process. Potential locations are analysed using the Salt Suitability Index method, identifying viable sites meeting salt production criteria. The study recommends adopting the continuous dynamic mixing production method, facilitated by the Greenhouse Salt Tunnel construction, to enable salt production in this region. This innovative approach, with its potential to significantly enhance Indonesia’s salt output and provide additional livelihood opportunities, underscores the urgent need for action in salt production.