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| Troubleshooting: Weak Hot or Cold Throws |
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| One of the most common questions candle makers ask is, "Why doesn't my candle smell very strong?" Whether you're dealing with weak hot throw, weak cold throw, or both, don't get discouraged! Nearly every candle maker experiences this at one time or another. |
| The good news? It's almost always fixable. |
| In most cases, the issue comes down to a handful of variables. Let's walk through the most common causes and how to improve your candle's scent performance. |
| Make Sure You Are Using The Right Wick |
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| Your wick is the engine of your candle. It controls flame size, melt pool, burn temperature, and ultimately how well fragrance is released. |
| If your wick is too small, you may notice: |
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A small or struggling flame |
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The wick drowning in melted wax |
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| Solution: Try increasing your wick by 1-2 sizes |
| If your wick is too large, you may experience: |
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An overly deep melt pool |
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Fragrance burning off too quickly, resulting in reduced hot throw |
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| Solution: Test one or two wick sizes smaller |
| Remember that every wax, fragrance oil, and container combination can require a different wick, so testing is essential. |
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| One of the biggest misconceptions in candle making is that adding more fragrance oil automatically creates a stronger candle. In reality, too much fragrance can actually reduce performance. Most waxes perform best at around 6–10% fragrance load, with many manufacturers recommending approximately 8%. Always follow your wax suppliers recommendations. |
| Too much fragrance oil can cause: |
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Poor wick performance (clogs wick) |
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Weak or inconsistent hot throw |
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Difficulty achieving a full melt pool |
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| Heavier fragrance oils, such as bakery or gourmand scents, often perform better at lower fragrance loads. |
| Too little fragrance oil may result in: |
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A candle that simply doesn't project fragrance well |
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| If you're troubleshooting, try testing several fragrance loads such as 6%, 8%, and 10% (if your wax allows) to determine what performs best. |
| Size Matters (Room Size That Is!) |
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| Sometimes the candle isn't the problem—it's the testing environment. |
| Even an excellent candle has limits. A small candle isn't designed to fragrance a large open-concept living space. |
| As a general guideline: |
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4–9 oz candles: Small bathrooms or offices |
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10–14 oz candles: Small to medium-sized rooms |
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16 oz or larger: Medium-sized rooms |
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| Large open floor plans often require multiple candles or additional scented products to adequately fragrance the space. |
| Testing in the proper environment helps you evaluate your candle much more accurately. Many weak hot throw (HT) issues are really just testing in the wrong size space! |
| Test Your Candle Correctly |
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| Many makers unknowingly evaluate scent throw incorrectly because of olfactory fatigue, also known as nose blindness. After spending time in the same room, your brain naturally begins filtering out familiar scents, making it seem like your candle isn't performing. |
| For more accurate testing: |
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Place the candle in an appropriately sized room. |
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Return after one to two hours. |
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Evaluate the fragrance strength (hot throw) and burn performance. |
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| Stepping away between evaluations allows your sense of smell to reset, giving you a much more accurate impression of your candle's performance. |
| Review Your Candle Making Process |
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| Even with the perfect wick and fragrance load, improper handling techniques can reduce both hot and cold throw. |
| Be sure you're following your wax manufacturer's recommendations for: |
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Fragrance oil addition temperature |
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| Many waxes (especially soy or coconut blends) are temperature sensitive, making consistency throughout the process extremely important. |
| Remember That Every Candle Is A Complete System |
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| A successful candle isn't built around just one component. Performance depends on how every part works together. They all influence the final result. |
| Your: |
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| If one variable changes, the entire candle can perform differently. |
| When troubleshooting, change only one variable at a time. For example: |
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Test one wick size larger. |
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Test one wick size smaller. |
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Adjust the fragrance load. |
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| Keep detailed notes throughout your testing process. Good records make it much easier to identify what works and avoid repeating unsuccessful combinations. |
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| A weak hot throw (HT) or cold throw (CT) doesn't necessarily mean you've done something wrong. Candle making is both an art and a science, and achieving exceptional performance often comes through careful testing and small adjustments. |
| With patience, consistent testing, and quality ingredients, you'll discover the combination that delivers the fragrance performance you're looking for. Every test teaches you something—and each one brings you closer to creating a candle you'll be proud to share. |
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| © AromaStorm Indigo Fragrance LLC All Rights Reserved |
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