Sustainable Candle Production from Waste Cooking Oil and Waste Lubricating Oil

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This study demonstrates the use of waste cooking oil and used lubricant oil in candle production, indicating a sustainable alternative.

The production process created candles from waste cooking oil and waste lubricating oil, enhancing sustainability.
Filtration and heating of waste oils resulted in candles with melting points and burn times on par with standard candles.
The candles showed differences in color and odor compared to commercial options, reflecting the nature of raw materials.
Optimizing blending ratios and additives could further improve the performance and appeal of these eco-friendly candles.

Wardana et al. (2025) studied this question.

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