Implementation of an Automated Coffee Roasting Machine to Improve Coffee Production Quality in KWT Kaki Rinjani
DOI:
https://doi.org/10.33061/5hq1jj90Keywords:
Automatic , coffee, roasting, robusta, qualityAbstract
KWT Kaki Rinjani is a community-based enterprise engaged in Robusta coffee processing in Karang Sidemen Village, Central Lombok, West Nusa Tenggara. The problem faced by this partner group is the manual roasting process, which lacks precise control over temperature and time. As a result, product quality is inconsistent, the proportion of defective products is high, and production efficiency is low. This community service program aims to increase production capacity and improve coffee quality by implementing an automated coffee roasting machine. The program adopts a Participatory Action Research (PAR) approach, which includes situation analysis, socialization, training, and evaluation, involving 30 members of KWT Kaki Rinjani. The results show a substantial improvement in participants’ knowledge of modern roasting technology, indicated by an increase in average test scores from 26% (pre-test) to 90% (post-test). The use of the automated roasting machine enhances roasting performance, as indicated by an increase in roasting uniformity from 62% to 95% and a reduction in defective products from 18% to 4%. Additionally, this technology enables more precise control of roasting parameters, resulting in more consistent product quality, improved production efficiency, and reduced raw material losses. Therefore, the automated coffee roasting machine is effective in improving product quality and strengthening the competitiveness of local coffee enterprises.
References
Pangestu, A. (2025). Pengaruh Waktu Roasting Terhadap Kualitas Sensori Kopi Robusta Kecamatan Pulosari Kabupaten Pemalang. Journal Central Publisher, 3(1). https://doi.org/10.60145/jcp.v3i1.283
Arifuddin, R., Mujahidin, I., Subairi, S., & Wikantiyoso, R. (2021). Sistem Kontrol Suhu dan Waktu Otomatis Mesin Roasting Kopi Portabel. CYCLOTRON, 4(2). https://doi.org/10.30651/cl.v4i2.6517
Castro-Diaz., et al. (2025). Participatory Convergence: Integrating Convergence and Participatory Action Research. Minerva, 63(3). https://doi.org/10.1007/s11024-024-09547-x
Suswanto, H., et al. (2025). Teknologi Mesin Roasting Berbasis Kontrol Suhu Guna Tingkatkan Kualitas Dan Produktifitas UMKM Kopi Gupait. Rengganis Jurnal Pengabdian Masyarakat, 5(2). https://doi.org/10.29303/rengganis.v5i2.836
Langgen, D., Susanti, H.D., Hamid, A. (2024). Optimalisasi Kualitas Kopi Robusta Pada Mesin Roasting Kopi Dengan Menggunakan Metode Taghuci Pada Cafe Albiru Banyuwangi. Journal of Scientech Research and Development, 5(2). https://doi.org/10.56670/jsrd.v5i2.297
Maulana, J. (2022). Studi Eksperimen Temperatur, Daya Dan Waktu Pada Pemanas Mesin Roasting Kopi Otomatis Berkapasitas 5 Kg. Jurnal Teknik Mesin, 1(2). https://doi.org/10.33795/jmeeg.v1i2.394
Mubarak, M. Z. S., & Mulyadi, M. N. (2024). Pengaruh Lama Penyangraian Terhadap Sifat Kimia dan Organoleptik Kopi Robusta. Jurnal Teknologi Hasil Pertanian, 1(1). https://doi.org/10.37366/juthap.v1i1.4984
Mukhtar, H., et al. (2024). Implementasi Mesin Roasting Kopi Untuk Peningkatan Kualitas Produksi Kopi UMKM Darma Coffee. SWAGATI : Journal of Community Service, 1(3). https://doi.org/10.24076/swagati.2023v1i3.1082
Omodan, B. I., & Dastile, N. P. (2023). Analysis of Participatory Action Research as a Decolonial Research Methodology. Social Sciences, 12(9). https://doi.org/10.3390/socsci12090507
Rozaqi, M. R., Haryuni, N., & Alam, Y. (2024). Pengaruh Suhu Pemanasan Metode Sangrai Terhadap Peningkatan Kualitas Fisik Dan Penurunan Konsentrasi Aflatoksin Pada Jagung. Journal of Science Nusantara, 3(3). https://doi.org/10.28926/jsnu.v3i3.1187
solikhin, Wicaksono, A. P., & Santoso, B. W. A. (2023). Penerapan Teknologi Tepat Guna Mesin Roasting Kopi Pada Ukm Kopi Pinanggih. JURNAL PASOPATI, 5(3).
Sulistyo, A., & Suhono, S. (2023). Implementasi Teknologi Mesin Sangrai Biji Kopi Semi Otomatis. Jurnal Teknologi Elektro, 14(1). https://doi.org/10.22441/jte.2023.v14i1.002
Ting, K. F., Chen, J. C., & Chen, T. L. (2024). Effect of coffee roasting on the cupping quality of coffee. Coffee Science, 19. https://doi.org/10.25186/.v19i.2174
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Indah Nalurita, Husnita Komalasari, Kartika Gemma Pravitri, Tomi Tri Sujaka

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Copyright on any article is retained by the author(s).
- The author grants the journal, right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work’s authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal’s published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
- The article and any associated published material is distributed under the Creative Commons Attribution-ShareAlike 4.0 International License

