For most candle waxes, a 6-8% fragrance load is standard and yields excellent hot throw. Soy wax typically handles 6-10%, paraffin can go up to 12%, while beeswax is best at 3-6% since it has its own natural honey scent. Going above the wax's maximum fragrance load can cause oil seepage, poor burn quality, and safety issues.

Sinkholes and cracks occur when wax cools unevenly, trapping air pockets beneath the surface. To prevent this: pour at the recommended temperature (135-140°F for soy), allow candles to cool slowly at room temperature away from drafts, and consider using a heat gun to smooth the surface after cooling. Some makers also pre-warm their containers slightly.

Fluid ounces measure volume (how much space liquid occupies), while weight ounces measure mass. Since wax is lighter than water (~85-97% of water's density), an 8 fl oz container only needs about 7.2-7.5 oz of wax by weight for soy wax. Our calculator automatically accounts for this density difference based on your wax type selection.

Always use a digital kitchen scale that measures to at least 0.1g or 0.01oz precision. Place your wax melting pitcher on the scale, tare it to zero, then add fragrance oil drop by drop until you reach the target weight. Never measure fragrance by volume (teaspoons or milliliters) — different fragrance oils have different densities, and weight is the only reliable method.

Cure times vary by wax type: Soy wax needs 7-14 days for optimal fragrance throw. Paraffin only needs 24-48 hours. Coconut wax blends typically cure in 3-7 days. Beeswax can be burned after 24 hours. Patience pays off — a properly cured candle will have a significantly stronger hot throw!

Absolutely! Many candle makers create custom wax blends. Popular combos include soy + coconut (for better adhesion and smoother tops), soy + paraffin (for stronger fragrance throw), and beeswax + coconut (for a natural candle with better burn pool). When blending, use our "Custom Density" option and estimate the weighted average density based on your ratios.

The ideal fragrance addition temperature is typically 160-185°F (71-85°C), depending on wax type. Soy wax: add fragrance at 160-170°F. Paraffin: 170-180°F. Coconut wax: 155-165°F. Adding fragrance at too low a temperature can prevent proper binding; too high and you risk burning off volatile scent compounds. Stir gently for 1-2 minutes after adding.