Implementing Used Cooking Oil to Soap Conversion and Digital Marketing in PKK RW 14 Sekeloa Bandung Indonesia

Abstract

Community members often dispose of used cooking oil into drains, which harms local environments and misses a simple valorization pathway. This program with PKK RW 14 Sekeloa in Bandung trained 15 participants to convert used oil into household bar soap and to operate basic digital selling routines. A one-group pre and post evaluation used 5 instruments: soap-making knowledge and attitudes (5 items), behavior and readiness to adopt soap-making (5 items), post-only perceived impact and sustainability (5 items), technology use for listing and operations (19 items), and a 10-item knowledge quiz. Results show consistent improvement. On knowledge and attitudes, the largest item gain was basic soap-making steps (+40 percentage points, favorable 40% to 80%); basic processing method and economic potential increased by +27 points each, raising favorable to 93% and 80%. Item averages moved from 55% to 81% favorable. On behavior and readiness, improper disposal (reverse-scored) improved by +60 points to 93% favorable, while item averages rose from 55% to 79% favorable. Post-only perceptions were strongly positive (85% favorable on average; usefulness and environmental awareness 93% each). Technology use advanced broadly from 32% to 75% favorable on item averages, with many domains at 73-93% favorable after training; promotions and cost recording remained the weakest areas. Quiz scores improved from 6.0 ± 1.3 to 8.9 ± 0.8, with participants scoring ≥8/10 increasing from 33% to 87%. The findings indicate that a short, safety-focused curriculum coupled with simple operating standards can build procedural competence and immediate readiness for micro-enterprises and its replicability in other urban communities.