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How to Calculate Candle Burn Time
Author: Wholesale Supplies Plus
Tuesday, July 2, 2024

Understanding Candle Burn Time

Calculating the burn time of candles, whether container, pillar, or votive types, is essential for manufacturers and users who want to ensure optimal performance. This guide will help you understand how to determine the burn time of any candle with straightforward steps.

Factors Influencing Burn Time

The burn time of a candle can be affected by several factors, including the type of wax, the size and material of the wick, and environmental conditions such as air drafts and room temperature. Before calculating the burn time, ensure your candle is placed on a level, heat-resistant surface away from drafts, and the wick is trimmed to about 1/4 inch.

Using a Candle Burn Time Chart

Supplies NeededStep 1: Weigh your candle using the digital scale to determine the starting weight in ounces or grams, and record this weight.

Step 2: Light the candle and note the starting time of the test burn.

Step 3: Allow the candle to burn for approximately 3-4 hours, then extinguish it. Record the time elapsed during the test burn.

Step 4: Weigh the candle again to find the final weight after burning.

Step 5: Calculate the amount of wax consumed during the test burn by subtracting the final weight from the starting weight (e.g., 16 oz starting weight—15 oz final weight = 1 oz wax consumed).

Step 6: To determine the burn rate, divide the time of the test burn by the amount of wax consumed (e.g., 4 hours of test burn ÷ 1 oz wax consumed = 4 hrs burned per ounce).

Step 7: Multiply the hours burned per ounce by the candle's total starting weight to estimate the total burn time (e.g., 4 hours burned per oz x 16 oz = 64 hours of total approximate burn time).

Importance of Candle Burn Time Calculation

Understanding how long a candle will burn is crucial for safety and efficiency. It helps users plan how long to use a candle before replacing it and ensures they get the most out of their purchase. Additionally, accurate burn time calculations are vital for manufacturers during product development and quality control.

Tips for Maximizing Candle Burn Time

To maximize the burn time of your candles, consider the following tips:
  • Always trim the wick to about 1/4 inch before lighting.
  • Avoid placing candles in drafty areas, which can cause them to burn unevenly and more quickly.
  • Use candles at room temperature, as very cold or sweltering conditions can affect burn efficiency.
  • Longer test burns provide more accurate data for calculating burn time, so consider extending the duration of your test burns if possible.
By following these guidelines, you can accurately calculate and maximize the burn time of your candles, ensuring safety and enhancing the enjoyment of your candle products.

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