Kitchen waste is a major source of organic household waste, yet its management at the community level remains limited. This study aimed to examine changes in the physical characteristics of compost produced from kitchen waste using the Effective Microorganism 4 (EM4) activator over a seven-day period at the household scale, as part of a student community service (KKN) program in tanjung pinang 2 village. A descriptive observational method was employed, involving daily monitoring of the composting process. The results indicated that the addition of EM4 accelerated the decomposition of kitchen waste, evidenced by a shift in color to dark brown-black, a transition to a loose, soil-like texture, a reduction in material volume, and the emergence of a non-pungent, fermented odor by the eventh day. These findigs align with previous research demonstrating the effectiveness of EM4 in accelerating the composting of household organic waste. This initiative is expected to serve as a simple model for organic waste management that can be replicated by the community.
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