Sand + Fog Candles: A Cleaner Burn for Your Home
Conventional paraffin candles release toxic compounds like benzene and toluene into your home's air. Sand + Fog offers coconut wax candles with cleaner ingredients and less soot.
Candles set the mood—cozy movie nights, relaxing baths, a warm ambiance during dinner. Most families burn candles regularly, especially during colder months. But that warm glow comes with a hidden cost when conventional candles fill your home's air with petroleum byproducts and synthetic fragrance chemicals. Since we burn candles in enclosed spaces—often for hours at a time—what they're made of genuinely matters for indoor air quality.
What's in Conventional Candles?
Paraffin wax is the base of most mass-produced candles, and it's a petroleum byproduct—a leftover from the crude oil refining process. When burned, paraffin releases volatile organic compounds (VOCs) into your home's air.
A 2009 study from South Carolina State University found that burning paraffin candles produced toluene and benzene—both known carcinogens. The researchers noted that regular use of paraffin candles in poorly ventilated rooms could contribute to indoor air quality problems. While the American Chemical Society cautioned that normal candle use likely poses minimal cancer risk, the study's finding that paraffin combustion produces these compounds at all is worth considering—especially for families burning candles frequently.
Soot production from paraffin candles can be significant. The black residue that accumulates on candle jars, walls, and ceilings near frequently burned candles contains particulate matter similar in composition to diesel exhaust. The EPA has identified fine particulate matter as a respiratory concern, particularly for children and individuals with asthma.
Synthetic fragrances in conventional candles can contain phthalates—endocrine-disrupting chemicals used to make scents last longer. A single "fragrance" listing on a candle label can represent dozens of undisclosed chemical compounds. The International Fragrance Association (IFRA) lists over 3,000 chemicals used in fragrance formulation, many of which have not been independently tested for safety when combusted and inhaled.
Lead-core wicks were banned in the U.S. in 2003 by the Consumer Product Safety Commission, but some imported candles may still contain them. Lead exposure from candle wicks was found to produce airborne lead concentrations exceeding EPA guidelines, according to research that prompted the ban.
Synthetic dyes add color to conventional candles but can release additional VOCs when burned. These dyes are rarely identified by name on candle labels.
A Cleaner Approach: Sand + Fog Candles
Sand + Fog uses coconut wax blends as their base instead of petroleum-derived paraffin. Coconut wax is a renewable, sustainably sourced material that burns cleaner with significantly less soot production.
Cleaner combustion: Plant-based waxes like coconut wax produce substantially less soot and fewer VOCs than paraffin during burning. This means less particulate matter in your home's air and less black residue on your walls and ceilings.
Better fragrance delivery: Coconut wax has a lower melting point than paraffin, which means it creates a larger melt pool and throws scent more effectively at lower temperatures. This allows for better fragrance diffusion without requiring the high heat that increases VOC release from synthetic wax bases.
Cotton and wood wicks eliminate any concern about metal-core wicks. Natural fiber wicks produce a cleaner burn with less soot and a more even flame.
Scent approach: Sand + Fog offers a wide range of scents. While fragrance formulation in candles is an area where full transparency remains limited across the industry, choosing a coconut wax base with cotton or wood wicks already eliminates the largest sources of combustion-related toxins (paraffin soot and VOCs).
Indoor Air Quality Context
To put candle burning in perspective: the average American spends roughly 90% of their time indoors, according to the EPA. Indoor air can be 2-5 times more polluted than outdoor air. Every combustion source—cooking, heating, and yes, candle burning—contributes to this indoor pollution load.
Switching from paraffin to plant-based wax candles doesn't eliminate combustion byproducts entirely (any flame produces some particulate matter and CO2), but it meaningfully reduces the most concerning petroleum-derived compounds. Pairing cleaner candles with occasional ventilation—cracking a window during or after burning—further reduces indoor air quality impact.
Performance Expectations
Burn time: Coconut wax candles often burn longer than paraffin equivalents because the lower melting point means the wax liquefies and vaporizes more slowly. Many users find they get more hours per candle.
Scent throw: Plant-based waxes generally provide excellent scent throw. Sand + Fog candles are well-reviewed for fragrance strength and consistency.
Soot: Expect dramatically less soot compared to paraffin candles. Your candle jars, walls, and ceilings will stay cleaner.
Appearance: Coconut wax has a naturally creamy, opaque appearance that many people find more aesthetically pleasing than the translucent look of paraffin.
The Bottom Line
Candles are meant to make your home feel warm and inviting—not fill it with petroleum combustion byproducts. Choosing coconut wax candles with natural wicks eliminates the biggest concerns associated with conventional paraffin candles: toxic soot, VOCs like benzene and toluene, and petroleum-derived particulate matter. Your home still gets the ambiance; your lungs get a break.