Defective Coffee Beans Reduction: A Case Study of Small-scale Coffee Beans Production in Shan State, Myanmar

Main Article Content

Ah Soet

Abstract

The main objectives of this case study on coffee production are to identify the underlying reasons for the high defect rates of coffee green beans and to find out the most efficient ways to address the issue, make it better and more durable, and implement the solution within the company. One of the main issues faced by Jadae Akha Coffee is the high rate of defects in coffee beans caused by poor farming techniques, lack of equipment, inexperienced workers, and insufficient handling experience of hulling machines, which has a substantial negative impact on the quality of sustainable production as well as marketability. Through the development of standardized handling procedures and the provision of the necessary training to farmers and employees, the defect rate decreased from 25.09% to 9.83%. The company must maintain the progress even though the percentage is declining in order to avoid a repeat of the problem and the researcher also offered recommendations for developing a long-term strategy for the operational enhancement of the firm as well as a roadmap for improvement.

Article Details

How to Cite
Soet, A. (2024). Defective Coffee Beans Reduction: A Case Study of Small-scale Coffee Beans Production in Shan State, Myanmar. NIDA Case Research Journal, 14(1). Retrieved from https://so04.tci-thaijo.org/index.php/NCRJ/article/view/268619
Section
Case Study

References

Abualsauod, E. H. (2023). Quality improvement in retail-distribution of Saudi thobe using Six-Sigma. International Journal of Retail & Distribution Management. doi:10.1108/IJRDM-02-2023-0091

Allam, Z., Bibri, S., & A. Sharpe, S. (2022). The rising impacts of the COVID-19 pandemic and the Russia–Ukraine War: Energy Transition, Climate Justice, Global Inequality, and Supply Chain Disruption. Resources, 11, 2-17. doi.org/10.3390/resources11110099

Amatyakul, N. (2018). How to improve delivery on time by accelerating the processing time in vendor creation/modification. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/21905

Amornbadee, S. (2011). Using DMAIC Six Sigma to improve transportation cost by optimizing truck space utilization: A case study of chilled and frozen distribution center. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/3214

Anjard, R. (1998). Process Mapping: A valuable tool for construction management and other professionals. Facilities, 16(3/4), 79-81. https://doi.org/10.1108/02632779810205611

Araman, H., & Saleh, Y. (2023). A case study on implementing Lean Six Sigma: DMAIC methodology in aluminum profiles extrusion process. The TQM Journal, 35(2), 337-365. doi:10.1108/TQM-05-2021-0154

Arani, O., & Erdil, N. (2017). Measurement System Analysis in Healthcare: Attribute Data. ResearchGate, 1109-1113. Retrieved from https://www.researchgate.net/publication/337731165_Measurement_System_Analysis_in_Healthcare_Attribute_Data

Auayingsak, S. (1999). Quality improvement at an out-of-box audit (OBA) station for a computer keyboard manufacturer. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/5637

Aummontha, W. (2017). Business process improvement of customer service for eBay business jewelry company. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/21852

Barbrow, S., & Hartline, M. (2015). Process Mapping as organizational assessment in academic libraries. Performance Measurement and Metrics, 16(1), 34-47. doi:10.1108/PMM-11-2014-0040

Bowles, D., & Gardiner, L. (2018). Supporting process improvements with process mapping and system dynamics. International Journal of Productivity and Performance Management, 67(8), 1250-1270. doi:10.1108/IJPPM-03-2017-0067

Chatrattanawuth, T. (2014). Defect reduction by the DMAIC concept: A case study of a bakery manufacturing. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/3140

Chettanacharoenchai, P. (2004). Measurement System Analysis for ultraviolet and visible absorption spectroscopy. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/5911

Chu, B., Yu, K., Zhao, Y., & He, Y. (2018). Development of Noninvasive Classification Methods for different roasting degrees of coffee beans using Hyperspectral Imaging. Sensors, 18(4), 1259. Retrieved from https://doi.org/10.3390/s18041259

Dadan, R., & Sukmana, F. (2018). Operational strategy analysis using Lean Six Sigma at PT. four Jeffee Indonesia. Russian Journal of Agricultural and Socio-Economic Sciences, 81(9), 417-423. Retrieved from https://doi.org/10.18551/rjoas.2018-09.49

Desai, D., & Shaikh, A. (2018). Reducing failure rate at high voltage (HV ) testing of insulator using Six Sigma methodology. International Journal of Productivity and Performance Management, 67(5), 791-808. doi:10.1108/IJPPM-11-2016-0235

Farradas, C. (2023). Lost resilience and staggering risks: The adverse effects of a highly Trade-Dependent Global Food System: A case study of the war in Ukraine and its consequences in Colombia. Baltimore: Johns Hopkins SAIS EUROPE. Retrieved from https://doi.org/10.2139/ssrn.4518607

García, M., Candelo-Becerra, J., & Hoyos, F. (2019). Quality and defect inspection of green coffee beans. Applied Sciences, 9(19), 1-18. doi:https://doi.org/10.3390/app9194195

Garza-Reyes, J., Flint, A., Kumar, V., Antony, J., & Soriano-Meier, H. (2014). A DMAIRC approach to lead time reduction in an aerospace engine assembly process. Journal of Manufacturing Technology Management, 25(1), 27-48. https://doi.org/10.1108/JMTM-05-2012-0058

Hoffa, D., & Laux, C. (2007). Gauge R&R: An effective methodology for determining the adequacy of a new measurement system for micron-level metrology. Journal of Industrial Technology, 23(4), 1-9. Retrieved from https://lib.dr.iastate.edu/abe_eng_conf/347/

Holtz, R., & Campbell, P. (2003). Six Sigma: Its implementation in Ford’s facility management and maintenance functions. Journal of Facilities Management, 2(4), 320-329. https://doi.org/10.1108/14725960410808285

Jakkaew, P., Yingchutrakul, Y., & Aunsri, N. (2024). A data-driven approach to improve coffee drying: Combining environmental sensors and chemical analysis. PLOS ONE, 19(2), e0296526. Retrieved from https://doi.org/10.1371/journal.pone.0296526

Jamil, N., Gholami, H., Saman, M., Streimikiene, D., Sharif, S., & Zakuan, N. (2020). DMAIC-based approach to sustainable value stream mapping: Towards a sustainable manufacturing system. Economic Research-Ekonomska Istraživanja, 33(1), 331-360. doi:10.1080/1331677X.2020.1715236

Jirasukprasert, P., Garza-Reyes, J., Kumar, V., & Lim, M. (2014). A Six Sigma and DMAIC application for the reduction of defects in a rubber gloves manufacturing process. International Journal of Lean Six Sigma, 5(1), 2-21. doi:10.1108/IJLSS-03-2013-0020

Jongkautrakul, J. (2004). Six Sigma application for reduction of the defective ratio in consumer products manufacture. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/5868

K. Hassan, M. (2013). Applying Lean Six Sigma for waste reduction in a manufacturing environment. American Journal of Industrial Engineering, 1(2), 28-35. doi:10.12691/ajie-1-2-4

Karout, R., & Awasthi, A. (2017). Improving software quality using Six Sigma DMAIC-based approach: A case study. Business Process Management, 23(4), 842-856. doi:10.1108/BPMJ-02-2017-0028

Kumar, P., Singh, D., & Bhamu, J. (2021). Development and validation of DMAIC based framework for process improvement: A case study of Indian manufacturing organization. International Journal of Quality & Reliability Management, 38(9), 1964-1991. doi:10.1108/IJQRM-10-2020-0332

Kumar, S., Satsangi, P., & Prajapati, D. (2013). Improvement of Sigma level of a foundry: A case study. The TQM Journal, 25(1), 29-43. doi:10.1108/17542731311286414

Lertanantasuk, T. (2013). Dead stock reduction by the DMAIC concept: A case of construction fittings trading company. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/3216

Limsirivallop, K., Roach, S., & Srisarkun, V. (2016). Using DMAIC to improve an in-store delivery service. Journal of Supply Chain Management: Research & Practice, 28-43. Retrieved from https://repository.au.edu/handle/6623004553/19339

Mandal, P. (2012). Improving process improvement: Executing the analyze and improve phases of DMAIC better. International Journal of Lean Six Sigma, 3(3), 231-250. doi:10.1108/20401461211282727

Marques, P., & Requeijo, J. (2009). SIPOC: A Six Sigma tool helping on ISO 9000 quality management. XIII Congreso De Ingeniería De Organización, 1229-1238. Retrieved from http://adingor.es/congresos/web/uploads/cio/cio2009/1229-1238.pdf

Mishra, P., & Sharma, R. K. (2014). A hybrid framework based on SIPOC and Six Sigma DMAIC for improving process dimensions in supply chain network. International Journal of Quality & Reliability Management, 31(5), 522-546. doi:10.1108/IJQRM-06-2012-0089

Mousli, H., Sayed, I., Zaki, A., & Abdelmonem, S. (2023). Improving VTE prophylaxis in ward and ICU surgical urology patients: A Six-Sigma DMAIC methodology improvement project. The TQM Journal, ISSN: 1754-2731. https://doi.org/10.1108/TQM-09-2022-0281

Onlamai, J. (2018). An application of business process improvement for new product development process: A case study of electronic manufacturer. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/21205

Pitigala, N. (2022). COVID-19 AND RUSSIA-UKRAINE WAR: Trade impacts on developing and emerging markets. Sri Lanka Journal of Economic Research, 10(1), 113-137. Retrieved from https://doi.org/10.4038/sljer.v10i1.177

Plaitho, S. (1999). A quality improvement plan and in an electroplating factory. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/5645

Rehman, H., Asif, M., Saeed, M. A., Akbar, M. A., & Awan, M. U. (2012). Application of Six Sigma at cell site construction: A case study. Asian Journal on Quality, 13(3), 212-233. doi:10.1108/15982681211287775

Rhiney, K., Guido, Z., Knudson, C., Avelino, J., M. Bacon, C., Leclerc, G., . . . P. Bebber, D. (2021). Epidemics and the future of coffee production. Proceedings of the National Academy of Sciences of the United States of America, 118(27), 1-10. Retrieved from https://doi.org/10.1073/pnas.2023212118

Rungrueng, S. (2015). An application of DMAIC method to reduce defects: A case study of buckle manufacturing. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/19363

Salas, K., & Huxley, C. (2014). Enhancing visualisation to communicate and execute strategy Strategy-to-Process Maps. Journal of Strategy and Management, 7(2), 109-126. doi:10.1108/JSMA-10-2012-0055

Sampat, N. (2012). DMAIC concept for sustainable dead stock reduction: A case of a textile company. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/3142

Sanitrat, P. (2018). An application of DMAIC concept to improve delay delivery: A case study of Japanese car manufacturing company. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/21909

Sawangjan, O. (2014). Customs clearing time reduction by applying DMAIC model: A case study of petrochemical company. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/3314

Simion, C. (2019). Measurement System Analysis by attribute, an effective tool to ensure the quality of the visual inspection process within an organization.

MATEC Web of Conferences, 290, 05004. https://doi.org/10.1051/matecconf/201929005004

Smętkowska, M., & Mrugalska, B. (2018). Using Six Sigma DMAIC to improve the quality of the production process: A case study. Procedia - Social and Behavioral Sciences, 238, 590 – 596. doi:10.1016/j.sbspro.2018.04.039

Smutkupt, S. (2022). Applying Lean Six Sigma to improve telephone bill payment: A case study of a real estate developer. NIDA Case Research Journal, 14(2), 87-109. Retrieved from https://so04.tci-thaijo.org/index.php/NCRJ/article/view/263605

Smutkupt, S., & Naratornsawatdikul, U. (2019). An improvement of delivery lead time: A case study of a trading company. NIDA Case Research Journal, 19(3), 616-627. Retrieved from https://so02.tci-thaijo.org/index.php/hasss/article/view/137283

Soliman, F. (1998). Optimum level of process mapping and least cost business process re-engineering. International Journal of Operations & Production Management, 18(9/10), 810-816. https://doi.org/10.1108/01443579810225469

Southard, P., Chandra, C., & Kumar, S. (2012). RFID in healthcare: A Six Sigma DMAIC and simulation case study. International Journal of Health Care Quality Assurance, 25(4), 291-321. doi:10.1108/09526861211221491

Souza, T. A., Pinto, G. A., Antunes, L. G., & Grutzmann, A. (2023). SIPOC-OI: A proposal for open innovation in supply chains. Innovation & Management Review, 20(1), 76-93. doi:10.1108/INMR-12-2020-0182

Supalearkrattana, S. (2013). Applying DMAIC for improving production yield in telecommunication manufacturing. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/3258

Tilokavichai, N. (2003). Improvement of credit card payment: A case study of the pizza delivery company. Bangkok: Assumption University. Retrieved from https://repository.au.edu/handle/6623004553/5358

Wartati, D., Garza-Reyes, J., Dieste, M., Nadeem, S., Joshi, R., & González-Aleu, F. (2021). A Six-Sigma DMAIC approach to improve the sales process of a technology start-up. International Journal of Mathematical Engineering and Management Sciences, 6(6), 1487-1517. doi:10.33889/IJMEMS.2021.6.6.089

Won, T. L., & Nuangjamnong, C. (2021). The effect of coffee-mix experience and experience quality through perceived value, satisfaction towards repurchase intention in Myanmar. AU-GSB e-Journal, 15(1), 12-23. Retrieved from http://www.assumptionjournal.au.edu/index.php/AU-GSB/index

Yadav, N., Mathiyazhagan, K., & Kumar, K. (2019). Application of Six Sigma to minimize the defects in glass manufacturing industry. Journal of Advances in Management Research, 16(4), 594-624. doi:10.1108/JAMR-11-2018-0102

Yi, T. P., Feng, C. J., Prakash, J., & Ping, L. W. (2012). Reducing electronic component losses in lean electronics assembly with Six Sigma approach. International Journal of Lean Six Sigma, 3(3), 206-230. doi:10.1108/20401461211282718