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CANDLE TROUBLESHOOTING


roubleshooting candle problems can be frustrating, since what appears to be a simple problem may have many causes. The following list, while not all-inclusive, is being provided as a guide to assist candlemakers resolve their candle problems. No guarantees can be made from recommendations on this list, but it's a solid place to start troubleshooting. Good luck!

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Problem   Possible Causes   What To Do
Candle is smoking High oil content, your wick is too large, your candle may have air pockets Decrease your amount of fragrance oil, try a smaller wick size, pour your candles at a hotter temp
Candle is dripping excessively  

Wick is too small and cannot absorb the amount of wax melted, therefore melted wax overflows; Candle in draft and melted wax is “blown” over edge;

Wax is soft (or has a low melting point) will melt too rapidly for the wick to absorb it and will overflow  

 

Enlarge size of wick;  Keep away from drafts; Add stearic acid to wax  
Candle is splattering   Air in cavities left in candle expands due to heat of flame.  It is causing the flame to burst forth bring bits of molten wax with it.   Pierce all around the wick.  Fill cavity more than once if necessary.  
Candle is burning rapidly   Excess air in the fuel.  Candle is cooled too rapidly will cause the wick flame to burn higher and faster.   Slow down cooling process; use higher melting point wax; add stearic acid; pour more slowly  
Candle is not Throwing enough scent   You have not used enough fragrance, you have added too much vybar, you left your wax on your heat source for too long allowing the fragrance to evaporate, you are using a wax that is not porous enough   Use 1 oz. of fragrance per lb. of wax, only add 1/2 tsp. of vybar per lb. of wax, pour your candles right away after you add your fragrance, use a more porous wax
Fragrance oil is settling to the bottom of the candle   You used too much fragrance, you are using a wax that is not porous enough   Use 1oz. of fragrance per lb. of wax, use a more porous wax.  
Second pour is not blending well with your first pour   You have poured your second pour too cool   Try to do your second pour when your candle is still a little warm.  Be careful though, if you pour your second pour too soon, that re-pour will sink just like your first pour did!  
Candle wax is not burning evenly all of the way down   Your wax may be too hard (too high of a melt point), your wick may be too small   You may want to use a softer, lower melt point wax or try using a larger wick diameter.  Zinc core wicks tend to burn hotter...try these!  
Candle wick is drowning out   Your wick size is probably too small for your candle diameter   Try using a larger wick size  
Candle will not come out of your molds   You may have poured your candles too hot, you may have poured your second pour over your fill line, your wax is too soft   Try using a harder wax, use mold release, pour your candles at a lower temp, do not pour above the first pour line, try putting your candle in the refrigerator to help it pop out.  Freezer will make them crack!  
Candles getting jump lines (visible lines on the outside of the candle or container candle)   Added too much stearic acid, your container or mold was too cool when you poured your candle, you poured at too cool of a temperature.   Try to warm your molds or containers prior to pouring, pour at a hotter temperature, use less additives  
Candles are getting small air bubbles which lead to small holes   Got water in the wax when you were pouring, on your second pour you poured above the first pour fill line, your candles cooled too fast, you poured your candles at too cool of temp   Make sure you never get water into your wax when pouring!  Water is wax's worst enemy!  Pour at a hotter temp, do not pour past the first pour fill line...air will get trapped and will not release before the candle has already set up.  Make sure your molds and containers are warm and your working environment is not too cool  
Candle bulges at sides   Usually when cardboard carton is used as mold   Support sides of container with stiff cardboard, masonite, or wood and attach with string (rubber bands my buckle carton); scrape away excess and decorate/redip  
Cave-in on sides   Candle well was not pierced early enough; cavity in center of candle caused walls to contract inward   Poke a hole in the well before wax begins to harden; use candle as base for thick types of decorations  
Glass molds will not break   Glass too thick; no mold release used in mold; wax that is too soft tends to stick to the glass   Refrigerate candle for 8 hours and then immediately submerge it in boiling water, remove with care immediately  
Wax chips at base   When candle is turned so that well becomes base, the well may have been filled too high and is not hot enough to adhere to the “old” wax on the surface; wax was too hard; mold refrigerated too long results in thermal shock and chipping   Don’t fill well to overflowing; reduce amount of hardener used such as stearic acid; cut down cooling time  
Candle surface soiled   Exposed to environment too long; excessively handled   Rub candle with soft rag saturated with cooking oil or baby oil; let stand about 15 minutes, then gently buff; scrape candle with dull knife and then re-dip at 220 degrees F.  
Fractures and cracks   Candle contact with cold too soon or for too long caused thermal stresses   Even when rushed, reduce amount of time candle spends in cold water, refrigerator, or freezer
Frost marks   Excessive adhesion to sides of mold   Try using hotter wax (over 180 degrees F); try warming mold before casting  
Dull surface   Mold has dull surface; or a wax carton coated with a low melting point wax was used  Polish candle with a nylon stocking; polish with cooking or baby oil; spray with p.v.a.; coat with mod-podge; re-dip in wax at 220 degrees F  
Blisters and pimples   Storage in too warm a place causes air in candle to expand and combine into bubbles   Store candles in cooler location; scrape candle with dull knife and re-dip in wax at 220 degrees F  
Spots under surface   Wax has been reheated too often and has broken down   Use fresh wax; re-dip candle at 220 degrees F or decorate to mask imperfections  
Pit marks   Filling mold too fast causes turbulence that traps air bubbles along mold wall; dust in mold   Slow down filling; clean mold before filling  
Soft white mottling   Too much oil on surface of mold (can deliberately create this effect wit 3% mineral oil mixed into molten wax); wax cools too slowly allowing large crystals to form near walls of mold   Reduce amount of oil used as mod release; speed up cooling of mold; cut down on the amount of scent used  
Lines of tiny bubbles ring the candle   Hot water bath too turbulent; water for water bath added after candle was placed in mold   Slow down insertion and withdrawal of candle from water bath; eliminate this technique and use wax dipping method  

 

GEL CANDLE ISSUES:

hen a candle fragrance is used in gel candles, it should remain clear when added to your candle gel.  If your gel is cloudy you may have added too much fragrance, or the fragrance may be too "polar."  Always test for polarity (by doing such as the well-known "mineral oil polarity test" developed by Penreco) on any fragrance before using it in a gel candle. Non-polar fragrances usually do not discolor, whereas polar fragrances will most always discolor. The amount of fragrance you want to add to a gel should be no more than 5%, with ranges of 1-3% being the best. Ensure the flashpoint of your fragrance is always higher than 170 degrees Fahrenheit. If you are in doubt of the flashpoint, DO NOT use it in a gel candle -- the candle could become a serious fire hazard. Paraffin or soy candles do not carry this restriction.

Safety Note:  Fragrance in gel candles has probably been the major factor in recalls and candle problems in the past.  Evaluate your fragranced gel candles well by burning test candles.  Also allow them to sit on the shelf for awhile; we have seen some fragrances migrate to the surface over a period of time and cause uneven burning. Keep in mind the gel in a gel candle is made from complex plastic polymers, and NOT from any kind of wax. They may look like a candle because they have a wick you're supposed to light, but they do not always act like typical candles.  Always err on the side of caution.

 

FRAGRANCE DISCOLORATION:

any fragrances when added to a product base may induce color or discolor from scent and base interaction. Ultraviolet light accelerates discoloration. Sometimes traces of metals in essential oils, such as iron in patchouli, will promote color. Packaging issues may give rise to internal reaction between the base and/or the fragrance.

Certain fragrances almost always will discolor because of their inherent chemistry. The fragrance industry has spent millions of dollars to create substitutes that will replace those molecules that give color issues. Unfortunately certain chemicals found in nature have no equal substitutes. One example is vanillas, which will always turn brown due to the main ingredients vanillin and ethyl vanillin.



 
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