Proceedings of the International Student Conference on Earth and Environmental Research (ISCEER 2025)

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Quality Control Analysis Using Statistical Process Control (SPC) and Failure Mode and Effect Analysis (FMEA) Methods in PPTK Gambung

Authors
Mochammad Dwi Ath-Thoriq1, *, I Made Aryantha Anthara1, Julian Robecca1
1Universitas Komputer Indonesia, Bandung, Indonesia
*Corresponding author. Email: dwi.10321003@mahasiswa.unikom.ac.id
Corresponding Author
Mochammad Dwi Ath-Thoriq
Available Online 22 December 2025.
DOI
10.2991/978-94-6463-934-6_5How to use a DOI?
Keywords
Quality Control; White Tea; Statistical Process Control (SPC); Failure Mode and Effect Analysis (FMEA); PPTK Gambung
Abstract

This study aims to analyze quality control in the white tea production process at PPTK Gambung using Statistical Process Control (SPC) and Failure Mode and Effect Analysis (FMEA). The methods used include field observation, interviews, and production data analysis using check sheets, Pareto diagrams, control charts (P-charts), fishbone diagrams, and FMEA tables. The results showed that the number of defective products increased during the rainy season, with 60% of defects being in shape and 40% in color. SPC analysis indicated instability in the production process, while FMEA identified manual drying and sorting as the most critical failure points with high RPN values. These findings indicate that process irregularities and lack of standardization contribute to quality decline. Therefore, improvements in drying control and operator training are essential to sustainably increase the proportion of Grade A products.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Student Conference on Earth and Environmental Research (ISCEER 2025)
Series
Atlantis Advances in Applied Sciences
Publication Date
22 December 2025
ISBN
978-94-6463-934-6
ISSN
3091-4442
DOI
10.2991/978-94-6463-934-6_5How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Mochammad Dwi Ath-Thoriq
AU  - I Made Aryantha Anthara
AU  - Julian Robecca
PY  - 2025
DA  - 2025/12/22
TI  - Quality Control Analysis Using Statistical Process Control (SPC) and Failure Mode and Effect Analysis (FMEA) Methods in PPTK Gambung
BT  - Proceedings of the International Student Conference on Earth and Environmental Research (ISCEER 2025)
PB  - Atlantis Press
SP  - 33
EP  - 44
SN  - 3091-4442
UR  - https://doi.org/10.2991/978-94-6463-934-6_5
DO  - 10.2991/978-94-6463-934-6_5
ID  - Ath-Thoriq2025
ER  -