A candle flame should normally burn steadily without becoming excessively tall or unusually weak. When the flame becomes very small, struggles to stay lit, or repeatedly goes out, the wick may not be receiving enough wax to support a proper burn.
Fortunately, a weak candle flame is often easy to correct.
The Wick Was Trimmed Too Short
One of the most common causes of a small flame is a wick that has been cut too short.
A very short wick may have difficulty drawing melted wax upward. It can also become surrounded by liquid wax, causing the flame to shrink or go out completely.
Before lighting a candle, trim the wick to approximately 1/4 inch, or 6 millimeters. Avoid cutting it much shorter than this.
The Wick Is Drowning in Melted Wax
Sometimes too much melted wax collects around the wick. This can partially cover the wick and make the flame weak.
Extinguish the candle and allow the wax to cool slightly. Carefully absorb a small amount of excess liquid wax with a folded paper towel. Keep the paper away from the flame and never handle hot wax carelessly.
Once the wax has cooled, relight the candle and observe the flame.
Wax or Debris Is Blocking the Wick
Small pieces of burnt wick, matches, dust, or decorative material can collect in the wax pool and interfere with the burn.
Before lighting the candle, make sure the surface and wick area are clean. Remove loose debris only when the candle is completely cool.
The Candle Did Not Burn Long Enough
Extinguishing a candle too quickly may prevent the wax from melting evenly across the surface. Over time, this can create a narrow tunnel around the wick and limit the amount of wax available to fuel the flame.
During the first burn, allow the melt pool to move toward the outer edges of the candle when possible. Always remain within the manufacturer’s recommended maximum burn time.
The Wick Has Become Covered With Hardened Wax
If a candle has been extinguished while the wick was leaning into the liquid wax, the wick may become coated as the wax hardens.
Once the candle is cool, gently remove excess hardened wax from around the wick. Do not pull or bend the wick aggressively, because it may break or become displaced.
The Wick May Be the Wrong Size
A wick must be properly matched to the candle’s diameter, wax type, fragrance load, and design. A wick that is too small may not create enough heat to form a stable melt pool.
This is usually a manufacturing issue rather than a candle-care problem. If a new candle continues to burn with an extremely weak flame even after proper wick care, contact the seller for assistance.
How to Fix a Small Candle Flame
Try these simple steps:
- Extinguish the candle safely.
- Allow the wax to cool slightly.
- Remove a small amount of excess liquid wax if the wick is drowning.
- Clear away debris from the wax surface.
- Allow the candle to cool completely.
- Relight it away from fans, vents, and open windows.
Never pour hot wax into a sink, and never attempt to adjust the wick while the candle is burning.
How to Prevent a Weak Flame
Trim the wick before each use, but do not cut it excessively short. Keep the wax pool clean and allow enough time for the candle to develop an even melt pool.
Store candles upright in a cool, dry area so the wick and wax surface remain protected.
Final Thoughts
A small candle flame is usually caused by a short wick, excess melted wax, debris, or an uneven melt pool. With proper wick care and safe burning habits, most candles can return to a clean and steady flame.