Wick Testing

If you are just starting in candle making, knowing where to start can be tricky. We wanted to make the process easier. To support both new and experienced candle makers, we aim to simplify the testing phase by generating controlled baseline data.

We preselected a broad representative range of fragrance oils based on formulation consistency and component diversity, ensuring coverage across our entire fragrance range. This allows our wick recommendations to be confidently extrapolated across our full fragrance range, as the selected test fragrances reflect varying viscosities, compositions, and performance.

Testing was conducted using eight popular and diverse fragrances — Alien, Aventos, Black Cherry, Black Opium, Linen Fresh, Lime Basil & Mandarin, Sauvage, and Pomegranate Noir — across our standard Karen Jar sizes (9cl, 20cl, 30cl, and 55cl). Each fragrance was evaluated using six leading wax types: Cocopro, Prosoy, Paraffin, Kerasoy, Nature C3, and Parasoy.

Following the production and assessment of over 700 candle samples, we established data-driven starting-point wick recommendations to streamline your own testing process.

For further technical detail, please refer to our blog post: Wick Chart.

To view the analysis we carried out, please click here.

Disclaimer

Any wick size suggestions or guidance provided by Supplies for Candles are based on general testing conditions and should be considered indicative only. Variations in materials and production processes may significantly impact burn performance.

Customers are solely responsible for conducting comprehensive burn testing and safety assessments of their finished products prior to sale or distribution. Supplies for Candles accepts no responsibility for the performance, safety, or compliance of completed candles.