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Used cooking oil is a household waste that is often disposed of carelessly, potentially polluting the environment and endangering health. In Battu Winagun Village, the availability of used cooking oil from household activities and the abundant potential of lemongrass plants have not been optimally utilized. This community service activity aims to increase the community's knowledge and skills in processing used cooking oil and lemongrass plants into environmentally friendly products with economic value, namely natural aromatherapy candles. The implementation method includes socialization of the negative impacts of used cooking oil on the environment, training in the process of filtering and processing used cooking oil, extracting lemongrass aroma, and assistance in making and packaging aromatherapy candles. The results of the activity showed that the Battu Winagun Village community was able to understand the importance of managing used cooking oil waste and utilizing lemongrass plants as a natural additive. This activity has an impact on reducing environmental pollution and opening up creative business opportunities based on the village's local potential. Thus, the use of used cooking oil and lemongrass plants can be a sustainable solution in waste management while improving the economy of the Battu Winagun Village community.

Community Service Program (KKN) is an implementation of the Tridharma of Higher Education aimed at dedicating knowledge and technology to society. This article analyzes the implementation of the KKN program by students of Universitas Trunodjoyo Madura Group 30 in Buddagan Village, Pademawu District, Pamekasan Regency, focusing on community empowerment through aspects of environment, education, entrepreneurship, and village digitalization. The activities were carried out using a participatory approach with observation techniques, interviews, and discussions with the community and village stakeholders. The flagship programs include the socialization of used cooking oil for making aromatherapy candles, installation of environmental education plaques, anti-bullying socialization at SDN Buddagan 2, and the creation of the official social media for Buddagan Village. The results show an increase in community awareness, especially among PKK mothers, regarding the health and environmental dangers of used cooking oil and the potential for a creative economy based on domestic waste. The anti-bullying program successfully instilled empathy and mutual respect values in students, while the village digitalization strengthened public access to information and a positive village image. The KKN program in Buddagan Village has had a positive impact on social behavior changes in the community and serves as a model for sustainable community service.

This community service program was designed to empower the women’s group PKK RT 01 RW 08 in Tembalang, Semarang, through education and innovation in processing used cooking oil into eco-friendly floor cleaner. Household cooking oil waste, commonly known as “jelantah,” is often discarded and contributes to environmental pollution, while in fact it can be reused as a valuable resource. The program aimed not only to provide technical skills but also to increase environmental awareness and promote sustainable household practices. The implementation took place over three months (June–August 2025) using a participatory approach that included socialization, training, mentoring, and evaluation. During the activities, participants were introduced to the principles of green chemistry, practiced step-by-step floor cleaner production, and learned packaging and digital marketing techniques. As a result, the group successfully produced 65 bottles of “Lely Eco Floor” cleaner (260% of the initial target), distributed them for household use, and established an environmental movement group named “Lely Bersih Lestari.” Pre- and post-test scores indicated significant improvement in participants’ knowledge and skills. The program brought multiple impacts: reducing oil waste pollution, enhancing social cohesion, and opening opportunities for micro-scale entrepreneurship. Overall, this activity demonstrates how simple technology and community engagement can support sustainable development and women’s empowerment at the grassroots level.

Used cooking oil is a household waste that may pollute the environment and harm human health if disposed of or reused improperly. This community service program aimed to provide a waste management solution while enhancing the community’s economic skills through training on producing aromatherapy candles from used cooking oil. The implementation method included awareness sessions on the hazards of used cooking oil, technical training using a learning by doing approach, and assistance in production and marketing. A total of 30 participants from the Family Welfare Movement (PKK) took part in the program. The results indicated improved knowledge and skills, the production of approximately 50 aromatherapy candles with lavender, rose, and vanilla scents, and the establishment of a community group committed to continuing independent production. The program contributed positively to the environment by reducing around 15 liters of waste oil per month and created new entrepreneurial opportunities for residents. Therefore, this initiative can serve as a sustainable community empowerment model based on circular economy principles.

Although often overlooked as household waste, used cooking oil has great potential to produce environmentally friendly products. Fourth semester students of the Business Administration Program were trained to make aromatherapy candles from used cooking oil through this community service activity. The goal was to increase knowledge about the circular economy, encourage creativity, and foster students' entrepreneurial spirit. Socialization, hands-on practice, pre-post test evaluation, and participatory discussion were the methods of the activity. The results showed a significant increase in understanding and recycling skills. This activity shows that innovation based on household waste can support environmental sustainability while producing products with sales value.

The use of used cooking oil (mijel) as a raw material in making aromatherapy candles offers career opportunities for students of Al-Ma'wa Tembung Mosque. This community service activity aims to provide training in processing used cooking oil into aromatherapy candles while increasing awareness of the importance of recycling waste oil. The methodology used is practical training, discussion and demonstration. The results of the activity showed high enthusiasm from the participants and the potential for developing aromatherapy candle businesses among teenagers.

The large amount of used cooking oil that is thrown into the environment by the community is an urgency that must be addressed. Therefore, it is necessary to handle it efficiently so that it can be used as a product and has economic selling value. Based on the existing urgency as an effort to reduce the impact of environmental pollution, this service was held with the aim of utilizing used cooking oil into solid soap through a saponification process with the help of a strong base such as Sodium Hydroxide (NaOH). The method used was a demonstration of making solid soap which was witnessed by residents of Karang Tunggal village. Apart from preventing the impact of environmental pollution, used cooking oil that is used repeatedly can also harm health, so this service activity is expected to solve this problem and increase public awareness and skills regarding the procedures for processing used cooking oil into solid soap. The results of service activities are training in soap making and distribution of solid soap to the community. It is hoped that service activities can increase understanding and skills in waste management to become more useful and have economic value.

The large amount of used cooking oil that is thrown into the environment by the community is an urgency that must be addressed. Therefore, it is necessary to handle it efficiently so that it can be used as a product and has economic selling value. Based on the existing urgency as an effort to reduce the impact of environmental pollution, this service was held with the aim of utilizing used cooking oil into solid soap through a saponification process with the help of a strong base such as Sodium Hydroxide (NaOH). The method used was a demonstration of making solid soap which was witnessed by residents of Karang Tunggal village. Apart from preventing the impact of environmental pollution, used cooking oil that is used repeatedly can also harm health, so this service activity is expected to solve this problem and increase public awareness and skills regarding the procedures for processing used cooking oil into solid soap. The results of service activities are training in soap making and distribution of solid soap to the community. It is hoped that service activities can increase understanding and skills in waste management to become more useful and have economic value.

The Workshop program for training in making soap from used cooking oil is one of the work programs of the Regular Community Service Program (KKN) 83 UIN Walisongo Semarang Post 16 which was carried out with the mothers of Jawisari Village at the Jawisari Village Hall, Limbangan District, Kendal Regency. This workshop program was motivated by the fact that many people still use used cooking oil repeatedly so that it can endanger their health and there are still those who dispose of used cooking oil carelessly so that it can cause environmental pollution. This work program aims to provide an understanding to the community about the negative impacts of used cooking oil waste on the environment and health, introduce the application of science and technology through training in processing used cooking oil waste, and provide training and assistance to control environmental pollution by providing education and training to local residents on how to process used cooking oil waste into liquid soap. This training workshop activity was carried out in three main stages, namely counseling, practicing making liquid soap, and evaluation. The results of this program show that the training workshop activities were successful and well-run where participants were able to understand the basic techniques of making liquid soap and gain direct experience in practice, the mothers who participated were also very enthusiastic and actively participated and felt happy to be able to learn to change used cooking oil waste into liquid soap products that are useful for everyday life. Making liquid soap from used cooking oil is an innovation that is not only useful for reducing waste oil that pollutes the environment, but also provides economic and social benefits for the community because it can open up business opportunities and support the local economy. Therefore, as a sustainable step, it is necessary to provide education to the community about the importance of recycling used cooking oil and improving technology in the production of liquid soap to be more efficient and environmentally friendly

The Workshop program for training in making soap from used cooking oil is one of the work programs of the Regular Community Service Program (KKN) 83 UIN Walisongo Semarang Post 16 which was carried out with the mothers of Jawisari Village at the Jawisari Village Hall, Limbangan District, Kendal Regency. This workshop program was motivated by the fact that many people still use used cooking oil repeatedly so that it can endanger their health and there are still those who dispose of used cooking oil carelessly so that it can cause environmental pollution. This work program aims to provide an understanding to the community about the negative impacts of used cooking oil waste on the environment and health, introduce the application of science and technology through training in processing used cooking oil waste, and provide training and assistance to control environmental pollution by providing education and training to local residents on how to process used cooking oil waste into liquid soap. This training workshop activity was carried out in three main stages, namely counseling, practicing making liquid soap, and evaluation. The results of this program show that the training workshop activities were successful and well-run where participants were able to understand the basic techniques of making liquid soap and gain direct experience in practice, the mothers who participated were also very enthusiastic and actively participated and felt happy to be able to learn to change used cooking oil waste into liquid soap products that are useful for everyday life. Making liquid soap from used cooking oil is an innovation that is not only useful for reducing waste oil that pollutes the environment, but also provides economic and social benefits for the community because it can open up business opportunities and support the local economy. Therefore, as a sustainable step, it is necessary to provide education to the community about the importance of recycling used cooking oil and improving technology in the production of liquid soap to be more efficient and environmentally friendly

The people of Pecekelan Village, Sepuran District, Wonosobo Regency, Central Java, face a unique challenge in the form of an unpleasant odor from cattle pens adjacent to settlements, reflecting a strong agrarian life but interfering with daily comfort. In response to this situation, the Community Service Lecture (KPM) team from the University of Al-Quran Science developed an innovation in making aromatherapy candles made from used cooking oil as a natural solution to eliminate the smell of cages. This initiative not only aims to overcome the odor problem, but also to utilize household waste into useful products, create economical and environmentally friendly solutions, and improve the quality of life of village communities. This program is carried out through a series of activities including socialization, aromatherapy candle making training, product trials, and basic entrepreneurship training. Early results show effectiveness in reducing cage odors, improving home comfort, and creating a healthier environment. Furthermore, this program increases public awareness about waste management, encourages active participation in maintaining environmental cleanliness, and opens up new economic opportunities. This simple but impactful innovation has the potential to be applied in other areas with similar problems, promoting a sustainable approach in addressing environmental challenges at the household level while empowering local communities.

Used cooking oil cannot be reused due to its changed physical and chemical structure, or commonly referred to as “minyak jelantah”. Repeated use of minyak jelantah can pose a risk of various diseases. Meanwhile, “minyak jelantah” is included in waste that is difficult to decompose if it is just thrown away. The utilization of used cooking oil into candles is a solution to this problem. Based on research using observation methods in Sarimukti Village residents, and experimental research methods and documentation, minyak jelantah waste can be reduced by being utilized into aromatherapy candles. Based on the organoleptic test, the results show that the color is not suitable, while the shape and smell are suitable based on the concentration of stearic acid and telon oil added. Based on the burn time, the more telon oil added, the faster the candle runs out.

Training on making soap from used cooking oil in Wonotenggang Village is an initiative to reduce household waste. The village community showed high enthusiasm in participating in this training. In addition to aiming to reduce waste, this training also provides an opportunity for participants to gain new experiences in managing used cooking oil effectively. Through this activity, the community can utilize the information they have obtained and be able to innovate in making soap from used cooking oil.

Processing used cooking oil into aroma candles is an innovation that provides a sustainable business solution for rural areas. Used cooking oil, usually considered household waste, can be converted into economically valuable products such as aroma candles. The process involves filtering, refining, mixing with ingredients such as stearin, colorants, and fragrances, and forming candles in various shapes and attractive scents. In addition to increasing the economic value of the village community, this business also reduces used cooking oil waste that can pollute the environment. With small capital and simple technology, this process can empower villagers, create employment opportunities, increase income, and support environmentally friendly practices. Training and education programs on entrepreneurship and waste management can also grow the business, strengthen the local economy, and raise awareness about the importance of protecting the environment.

Dengue Hemorrhagic Fever or known as DBD disease which is caused by a dengue virus caused by the Aedes Aegypti mosquito. The disease causes sufferers to experience severe pain, complications, and death. The UIN Walisongo KKN Team conducted community service activities in Krompaan Village with the aim of increasing public awareness and participation in preventing Dengue Hemorrhagic Fever (DBD). Considering that this village is located near a river, which has the potential to be a habitat for the Aedes Aegypti mosquito, effective prevention efforts are needed to prevent this disease, which is one of the infectious diseases that is still endemic in Indonesia. The spread of this disease is influenced by mobility and environmental conditions that support the breeding of the Aedes Aegypti mosquito. The community service team focused on three main objectives in this activity by providing education about the dangers of DBD, teaching how to prevent the spread of mosquitoes, and using aromatherapy candles to prevent mosquitoes. The purpose of the counseling is to reduce diseases caused by mosquitoes by teaching the community about how to live a healthy life.Used cooking oil processed into aromatherapy candles is one of the new innovations in preventing DBD. This method is considered practical and easy to implement by the community by utilizing materials available around them. The community is also educated on how to maintain environmental cleanliness, such as draining and closing water reservoirs regularly and recycling household waste to reduce the possibility of mosquito breeding grounds. The hope is that this outreach will make the community more independent in maintaining environmental health and actively involved in preventing dengue fever so that the risk of increasing cases in their village can be reduced. This activity has succeeded in achieving the stated objectives, namely increasing community awareness and involvement in preventing dengue fever.

Abstract and Keywords must be written in English, in italic style, and contain a brief description of the research background, objectives, methods, findings, and implications. The abstract is written in one paragraph with a single space (maximum 200 words), without any reference or for This community service was carried out with the aim of providing skills in making aroma therapy candles from used cooking oil and increasing awareness of the importance of processing used cooking oil to create environmentally friendly products. In this training, in the future it is hoped that it can increase awareness of the importance of wise processing of used cooking oil waste to mothers in Gebanganom Village. The Aroma Therapy Candle Making Training was held on Saturday, August 3, 2023. As a result of the training, the women in Gebanganom Village were very enthusiastic and excited. With the enthusiasm and activeness of the women, this training was successful and beneficial for the village community.

One common household waste often encountered and rarely processed is used cooking oil. Used cooking oil is the residual oil from frying that has been repeatedly used. The common practice of reusing or improperly disposing of it by the community is considered hazardous as it has the potential to poison the body and pollute the environment. One effort to utilize used cooking oil is by recycling the waste into raw materials for making aromatherapy candles and essential oil scented soaps. This purpose activity is empower the community of Nglebak to utilize household waste and transform it into economic materials. This activity is carried out through research methods, material presentation, processing practice, and discussion. The research results on aromatherapy candles indicate that a formulation of used cooking oil and coconut wax at a ratio of 2:1 can produce ecofriendly aromatherapy candles with an ideal appearance and duration. The research results on soap indicate that stirring for 30 minutes with a volume of 60 mL of KOH (Potassium Hydroxide) is the ideal formulation for making essential oil scented soaps as it yields the most with a pH that complies with SNI No. 40-4058-1996

Cooking oil is an important basic ingredient in the frying process with the main function as a heat conductor, adding savory taste, increasing nutritional value, and heat of foodstuffs. If cooking oil is used many times it becomes less good for consumption, this is because the fatty acids contained will be more saturated and will change color Used cooking oil that has been used is called used cooking oil. Used cooking oil is oil that has been used more than two or three times frying, and is categorized as waste because it can damage the environment and can cause a number of diseases. So the use of used cooking oil is carried out by reprocessing it for the manufacture of solid soap. The participants of this activity were PKK mothers in one of the villages in Gresik, this activity consisted of discussions, demonstrations and direct practice. The results of this service activity show that community members are very enthusiastic about participating in this activity, as can be seen from the many questions they ask and their desire to participate in this activity. The practice and demonstration are intended to provide skills to the participants in determining the right formula in making laundry soap from used cooking oil. Once these activities take place, it is hoped that the development of the talents they have learned in the future will result in financial rewards.

Used cooking oil is oil that has decomposed fatty acids at certain limits so that it becomes unfit for use. Used cooking oil is obtained from the process of cooking or heating food using oil repeatedly and at high temperatures. The behavior that is often carried out by the community is that after being used repeatedly, the used cooking oil will be immediately dumped into the ground, ditches, pipelines or waters. This can result in environmental pollution in the form of death of aquatic biota, organisms in the soil, closing soil pores, contaminating groundwater and even increasing COD and BOD in soil and water. This type of community service is classified as expert service, namely community service carried out by lecturers in accordance with their field of knowledge, in this case through training activities in the pursuit of waste cooking oil using practical methods. The results of this service increase knowledge of the physical characteristics of cooking oil damage, the dangers of repeated use of oil, knowledge of waste used cooking oil management, and increased knowledge of waste used cooking oil utilization