Ingredients & Safety
Clean Burning Candles: What That Actually Means
Walk into a candle aisle and "clean burning" is on half the labels. Search the phrase and you'll find dozens...
Answers to Your Burning Questions
Read about candle science, sustainability, and burning tips for getting the most from your Sero Candles.
Ingredients & Safety
What to Look For in a Non-Toxic Candle: A Manufacturer's Checklist
“Non-toxic” is a popular word in the candle aisle. It has no legal definition. No federal agency certifies a candle...
Ingredients & Safety
Essential Oils vs. Fragrance Oils: Which Makes a Better Candle?
Essential oil candles sound like the natural choice. But candles aren't diffusers - they're combustion systems. Here's why that changes...
Ingredients & Safety
The Soy vs. Paraffin Debate Is Missing the Point
Soy or paraffin - which candle wax is safer? A candle manufacturer breaks down the science, the marketing myths, and...
Ingredients & Safety
The Headache Test: Why Some Candles Hurt
Candle headaches come from 3 sources: paraffin wax, hidden fragrance chemicals, or poor burn habits. Learn which one is your...
Ingredients & Safety
Pet Safe Candles: Complete Guide for Cat & Dog Owners
Are candles safe for pets? Some "natural" candles are actually dangerous for cats and dogs. Learn which essential oils to...
Sustainability
Are Your Candle Jars Actually Recyclable?
Most candle jars can't be recycled curbside. The glass type and wax residue both cause problems. Here's the material science,...
Sustainability
Sustainable Candles: The Complete Guide to Eco-Friendly Candle Choices
Learn what actually makes a candle sustainable - from wax sourcing and wicks to containers and packaging. A complete lifecycle...
Sustainability
Refillable Candles: How They Work and Why They Matter
Refillable candles pair a permanent vessel with replaceable wax, reducing waste without sacrificing burn quality. Compare pour-your-own, pop-out, drop-in, and...
Lifestyle
Aromatherapy and Candles: What the Science Actually Says
"Aromatherapy candles" are an interesting category to dig into. Some of what gets claimed about them holds up under research....
Lifestyle
Why You Can't Smell Your Candle Anymore: The Science of Nose Blindness
You lit a candle thirty minutes ago. Now it smells like nothing. A friend walks in and comments on the...
Lifestyle
Why a Single Smell Can Take You Back: The Science of Scent and Memory
Your nose has a direct line to your brain's memory and emotion centers. Here's the neuroscience behind scent memory and...
Lifestyle
Why Candles Tunnel (And How to Fix It)
Candle tunneling wastes 20-40% of your wax. Learn the physics behind wax memory, three fix methods ranked by severity, and...
Lifestyle
Wood Wick Troubleshooting: Why Your Candle Won't Stay Lit (And How to Fix It)
Wood wick won't light? Check three things: wick length, wax level, and airflow. Learn the quick fixes that solve 90%...
Lifestyle
How Do Candles Work?
The wax never actually burns - it's the gas. Learn the physics of candle combustion, why candles flicker and tunnel,...