Candles have a way of transforming any space, adding warmth, fragrance, and a touch of luxury to everyday moments. Whether lit during a quiet evening at home or as the centerpiece of a gathering, a candle brings an atmosphere that feels both intimate and inviting.
Yet even the most beautiful candle can sometimes leave behind an unwelcome detail: soot on the glass. This dark residue not only detracts from the elegance of the vessel, but it can also shorten the life of the candle itself. The good news is that soot is easy to prevent with a few simple practices, and keeping jars clean ensures that your candles remain as stunning as the day you brought them home.
With thoughtful care, each burn becomes a cleaner, longer-lasting experience, allowing you to enjoy both the fragrance and the artistry of your candle to the fullest.
What Causes Candle Soot?
Soot is a natural byproduct of burning, but in scented candles it usually signals that the flame is not burning as cleanly as it could. When combustion is incomplete, tiny carbon particles are released into the air and can collect on the glass vessel.
Several factors can contribute to this:
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Wick length: A wick that is too long produces a larger flame, which burns hotter and less efficiently.
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Air movement: Drafts from vents, fans, or open windows disturb the flame, causing it to flicker and release soot.
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Wax and fragrance quality: Impurities in wax or overly heavy fragrance loads can make a candle more prone to sooting.
LAFCO candles are crafted with clean-burning soy wax and perfume-grade essential oil blends, designed to minimize soot and provide a pure, lasting fragrance. Even so, small adjustments in how you burn your candle can make a noticeable difference.
Tips to Prevent Candle Soot

Preventing soot is often a matter of small, intentional habits that make each burn cleaner and more enjoyable. By following a few simple guidelines, you can extend the life of your candles while keeping the glass vessels looking beautiful.
Keep the Wick Trimmed
Before each burn, use a wick trimmer to trim the wick to about ¼ inch. A shorter wick keeps the flame controlled and prevents it from burning too hot, which reduces the chance of soot.
Avoid Drafts
Place your candle away from vents, fans, or open windows. Air movement causes the flame to flicker, leading to uneven burning and more soot buildup on the glass.
Let the Wax Pool Evenly
Allow the candle to burn long enough for the melted wax to reach the edges of the vessel. This not only prevents tunneling but also promotes a steadier, cleaner flame.
Extinguish with Care
Blowing out a candle can cause smoke and soot to rise. Instead, use a snuffer or gently dip the wick into the melted wax and straighten it again. This keeps the air clear and helps the wick light more easily the next time.
Choose Quality Candles
Clean-burning wax and perfume-grade fragrance oils make a difference. LAFCO’s candles are formulated to minimize soot, ensuring that the experience is about the fragrance and the glow, not the residue.
How to Keep Candle Jars Clean

Even with careful burning, candle jars benefit from a little maintenance to keep them looking as beautiful as the day you brought them home. A few simple steps will help prevent residue and extend the life of your vessels.
Regular Maintenance
After each burn, check the rim of the jar. If you notice any soot beginning to form, gently wipe it away with a soft cloth once the glass has cooled. This quick step prevents build-up and keeps the vessel clear.
Deep Cleaning After the Candle is Finished
When the candle has burned down and only a small amount of wax remains, you can clean the vessel for reuse. Place the jar in the freezer for a few hours, then gently pop out the remaining wax. Wash the glass with warm, soapy water and dry thoroughly to restore its shine.
Repurposing Your Vessels
LAFCO’s handblown glass vessels are designed to be more than candle jars. Once cleaned, they can be enjoyed as vases, decorative storage, or accent pieces around the home. Repurposing not only reduces waste but also allows the artistry of the vessel to live on long after the candle has finished.
Benefits of Proper Candle Care
Candle care is more than just keeping the glass clean. Small habits, like trimming the wick or wiping away residue, have a big impact on how well a candle performs. A properly cared-for candle burns longer, with a steady flame that makes the fragrance more vibrant and even. Clean jars not only look more beautiful, but they also preserve the elegance of the vessel, allowing it to remain a centerpiece in your home.
Taking care of your candles also helps maximize their value. When soot is minimized and wax burns evenly, you enjoy every ounce of fragrance without waste. And with vessels as thoughtfully designed as LAFCO’s handblown glass, caring for your candle ensures that both the scent and the vessel can be appreciated for years to come.