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Coffee consumption increases every year so that a lot of coffee grounds are wasted which can cause problems to the environment. This can be overcome by utilizing coffee grounds from various cafes/coffee shops. One of them is by making bar soap. The purpose of this study was to determine the quality of bar soap product formulations with the addition of different levels of coffee grounds based on the results of the pH test and organoleptic test. The research was conducted from October to December 2023 at the Banyorang Coffee Processing Center Office, Tompobulu Village, Banyorang District, Bantaeng Regency, South Sulawesi Province. This research method uses a Completely Randomized Design (CRD) with 4 (four) treatments, namelyformula 1 coffee grounds 40 g, palm oil 50%, coconut oil 30%, olive oil 20%, formula 2 coffee grounds 70 g, palm oil 50%, coconut oil 30%, olive oil 20%, formula 3 coffee grounds 100 g, palm oil 50%, coconut oil 30%, olive oil 20%, and formula F4 coffee grounds 130 g, palm oil 50%, coconut oil 30%, olive oil 20%. The results showed that the pH value is feasible to use bar soap for skin care 9.40 – 10.62 in accordance with SNI standards and organoleptic tests based on the criteria of color, aroma, texture, moisture, freshness, and freshness was in the formulation of 130 g coffee grounds, 50% palm oil, 30% coconut oil, and 10% olive oil.
Amin et al. (Sat,) studied this question.