Course outline
Module 1
Module 1: Introduction to Candle Making
Introduction to Candle Making
Knowledge check
Q1. What is the most commonly used type of wax for beginner candle making?
- A. Beeswax
- B. Soy wax ✓
- C. Paraffin wax
- D. Carnauba wax
Why: Soy wax is popular with beginners because it is easy to work with, burns cleanly, has a lower melting point than many alternatives, and is made from a renewable plant source.
Q2. What is the purpose of a wick in a candle?
- A. To add color to the wax
- B. To hold the candle's shape while it cools
- C. To draw melted wax up to the flame so it can burn ✓
- D. To make the candle smell pleasant
Why: The wick acts like a siphon, drawing liquefied wax up through capillary action so it can vaporize and burn in the flame.
Q3. Which safety item should always be kept nearby when melting wax?
- A. A bowl of water
- B. A fire extinguisher or lid to smother flames ✓
- C. A fan
- D. A plastic container
Why: Melting wax can overheat and ignite. A fire extinguisher or a metal lid to smother the flame is the safest response, since water can spread burning wax.
Q4. What is fragrance load in candle making?
- A. The weight of the candle jar
- B. The percentage of fragrance oil added relative to the wax weight ✓
- C. The number of wicks used in a candle
- D. The temperature at which wax melts
Why: Fragrance load is the amount of fragrance oil, expressed as a percentage of the wax weight, that a candle contains. Most waxes perform well between about 6% and 10%.
Q5. Why should wax be melted using a double boiler instead of directly over heat?
- A. It makes the wax harden faster
- B. It prevents overheating and reduces the risk of fire ✓
- C. It adds more scent to the wax
- D. It removes the need for a wick
Why: A double boiler heats wax gently and indirectly through water or steam, which keeps the temperature controlled and greatly reduces the risk of scorching or igniting the wax.
Module 2
Module 2: Choosing Waxes and Materials
Choosing Waxes and Materials
Knowledge check
Q1. Which wax is most commonly recommended for beginners because it is affordable, easy to work with, and holds fragrance well?
- A. Beeswax
- B. Soy wax ✓
- C. Paraffin wax
- D. Carnauba wax
Why: Soy wax is widely recommended for beginners because it is affordable, burns cleanly, is easy to melt and pour, and holds fragrance oils well. It also comes from a renewable source.
Q2. What is the main reason beeswax candles are prized for their natural properties?
- A. They are the cheapest wax available
- B. They release a natural honey scent and burn for a long time ✓
- C. They melt at very low temperatures
- D. They shrink more than other waxes
Why: Beeswax has a natural honey-like scent and is known for burning slowly and for a long time. It is more expensive than many alternatives, so it is not the cheapest option.
Q3. What does the term 'fragrance load' refer to in candle making?
- A. The weight of the finished candle
- B. The percentage of fragrance oil added to the wax ✓
- C. The number of wicks used in a container
- D. The temperature at which wax is poured
Why: Fragrance load is the percentage of fragrance oil by weight added to the melted wax. Most waxes perform well within a typical range, and exceeding the recommended load can cause poor scent throw or oil seeping to the surface.
Q4. Why is it important to choose a wick that matches your candle's diameter?
- A. A matching wick makes the candle heavier
- B. A properly sized wick ensures an even burn and prevents tunneling or excessive smoke ✓
- C. A matching wick changes the color of the flame
- D. Wick size has no effect on how a candle burns
Why: A wick sized to the candle's diameter produces a flame strong enough to melt wax evenly across the surface. An undersized wick causes tunneling, while an oversized wick can cause smoking, flaring, and overheating.
Q5. Which material is used to add color to candles and is available in liquid, chip, or powder forms?
- A. Wick primer
- B. Mold release agent
- C. Dye ✓
- D. Stearic acid
Why: Dyes are used to color candles and come in liquid, chip, and powder forms. Stearic acid is a hardener, wick primer helps the wick stay upright, and mold release agents help candles release from molds.
Module 3
Module 3: Wicks: Selection and Sizing
Wicks: Selection and Sizing
Knowledge check
Q1. What is the primary purpose of a candle wick?
- A. To add color to the wax
- B. To draw melted wax up to the flame so it can burn
- C. To make the candle heavier and more stable
- D. To release fragrance into the air
Q2. Which factor has the greatest influence on choosing the correct wick size for a candle?
- A. The color of the wax
- B. The diameter of the candle
- C. The brand of the fragrance oil
- D. The shape of the container label
Q3. What typically happens when a wick is too small for a candle's diameter?
- A. The candle burns too hot and produces excess soot
- B. The candle tunnels, leaving unmelted wax around the edges
- C. The wax melts evenly across the entire surface
- D. The candle releases more fragrance than intended
Q4. What is the common result of using a wick that is too large?
- A. The candle develops a tunnel down the center
- B. The flame becomes smoky, produces soot, and the candle may overheat
- C. The wax becomes harder and more brittle
- D. The candle takes much longer to start burning
Q5. Before committing to a wick for a full batch, what is the recommended beginner practice?
- A. Skip testing and rely on the wick manufacturer's label
- B. Burn test a sample candle to evaluate the wick's performance
- C. Double the wick size as a safety measure
- D. Store the wick in water for 24 hours before use
Module 4
Module 4: Fragrance and Color Basics
Fragrance and Color Basics
Knowledge check
Q1. What is the recommended fragrance load range for most soy wax candles?
- A. Less than 1%
- B. 6% to 10% by weight of wax ✓
- C. 25% to 30% by weight of wax
- D. Exactly 50% by weight of wax
Why: Most soy waxes hold fragrance well in the 6% to 10% range. Going much higher often leads to fragrance oil sweating out of the candle, poor scent throw, or weakened structure.
Q2. Why should you perform a hot throw test before selling a candle?
- A. To check whether the wick is the correct length for trimming
- B. To evaluate how well the fragrance fills a room when the candle is burning ✓
- C. To measure the melting point of the wax
- D. To confirm the candle has the correct weight for shipping
Why: A hot throw test measures how strongly the scent is released into the air while the candle burns, helping you judge fragrance strength and adjust your blend or load accordingly.
Q3. Which type of colorant is generally recommended for candles because it disperses well in wax?
- A. Watercolor paint
- B. Food coloring
- C. Dye chips or liquid candle dye formulated for wax ✓
- D. Ink from a ballpoint pen
Why: Dye chips and liquid candle dyes are made specifically for wax. They blend smoothly, produce consistent color, and are less likely to affect burn quality than improvised colorants.
Q4. What is a common reason fragrance oil may cause a candle to fail when added in excess?
- A. It makes the wax too hard to pour
- B. It can cause frosting, sweating, or weak wick performance ✓
- C. It raises the flash point of the wax
- D. It turns the candle permanently black
Why: Excess fragrance can separate or sweat to the surface, and it can interfere with wax crystallization and wick performance, leading to uneven burning or poor scent quality.
Q5. When should fragrance oil typically be added to melted wax?
- A. When the wax is boiling vigorously
- B. After the wax has cooled to the recommended temperature for the specific wax being used ✓
- C. Only after the candle has fully set
- D. Before the wax has been melted at all
Why: Adding fragrance at the proper temperature helps it bind with the wax. Adding it too hot can cause scent loss through evaporation, while the correct range, usually noted by the wax manufacturer, supports even blending.
Module 5
Module 5: Melting and Pouring Techniques
Melting and Pouring Techniques
Knowledge check
Q1. What is the recommended method for melting candle wax safely?
- A. Placing the wax pot directly over a open flame
- B. Using a double boiler (water bath) setup ✓
- C. Microwaving the wax on high in a metal container
- D. Heating the wax on a stovetop with the burner at maximum heat
Why: A double boiler gently and evenly heats wax indirectly, reducing the risk of overheating, scorching, and fire, since wax can ignite if it gets too hot.
Q2. Why is it important to avoid overheating candle wax?
- A. Overheated wax becomes darker in color
- B. Overheated wax can ignite and may degrade fragrance oils and dyes ✓
- C. Overheated wax sets faster than normal
- D. Overheated wax produces a stronger scent throw
Why: Wax has a flash point, and overheating can cause fire hazards. It can also break down fragrance oils and dyes, reducing the quality of the finished candle.
Q3. What is the typical temperature range for pouring most soy or paraffin candle wax?
- A. Around 60-70 degrees Celsius
- B. Around 80-90 degrees Celsius ✓
- C. Around 120-140 degrees Celsius
- D. Around 180-200 degrees Celsius
Why: Most candle waxes are poured at roughly 80-90 degrees Celsius, though the exact range depends on the wax type and manufacturer's guidelines. Pouring at the right temperature helps achieve a smooth surface and good adhesion.
Q4. What is a common sign that wax was poured too hot?
- A. The candle surface develops a smooth, glossy finish
- B. The wick sinks or the candle develops frosting and sink holes ✓
- C. The candle becomes easier to remove from the mold
- D. The candle burns with a brighter flame
Why: Pouring too hot can cause excessive shrinkage and sink holes, and may lead to wick problems. Pouring too cool can cause frosting or poor adhesion between layers.
Q5. When should you add fragrance oil to melted wax?
- A. Before the wax is melted, mixed into the solid wax chips
- B. After the wax has fully cooled and hardened
- C. After the wax is melted and cooled to the recommended pouring temperature ✓
- D. Right after pouring the wax into the container
Why: Fragrance oil should be added once the wax has melted and cooled to the manufacturer's recommended temperature. Adding it when the wax is too hot can cause the scent to evaporate or degrade.
Module 6
Module 6: Curing and Finishing Candles
Curing and Finishing Candles
Knowledge check
Q1. What is the main purpose of curing a candle after it has been poured?
- A. To change the candle's color permanently
- B. To allow the wax to harden fully and the scent to bind properly, improving burn quality ✓
- C. To make the wick longer
- D. To remove the candle from its container
Why: Curing allows the wax to fully crystallize and hardens it, while fragrance oils bind more completely to the wax. This results in better scent throw and a cleaner, more even burn.
Q2. Approximately how long is a typical curing period for soy wax candles?
- A. 1 hour
- B. 24 hours
- C. 1 to 2 weeks ✓
- D. 6 months
Why: Most soy wax candles benefit from a curing period of about 1 to 2 weeks. Soy wax is slow to fully harden, so this time allows for proper scent development and a better finished appearance.
Q3. Why should you trim the wick to about 1/4 inch before lighting a finished candle?
- A. A shorter wick makes the candle smell stronger
- B. It helps prevent excessive smoking, soot, and an uneven flame ✓
- C. It makes the candle burn faster
- D. It is required by law for all candles
Why: A properly trimmed wick produces a steady, controlled flame. Long wicks cause smoking, soot buildup on containers and walls, and a flame that can become too large and uneven.
Q4. What is a common sign that a candle has been cured properly?
- A. The wax is soft and sticky to the touch
- B. The surface is hard, the color is even, and the scent is noticeably stronger when lit ✓
- C. The wick has turned completely black
- D. The candle has shrunk by half its size
Why: A properly cured candle has a firm surface, consistent appearance, and a fragrance that is better developed and more noticeable when burned. Soft or sticky wax usually indicates the curing process isn't complete.
Q5. What should you do if a finished candle develops frosting or white spots on its surface?
- A. Throw the candle away because it is ruined
- B. Nothing, as surface frosting is a normal wax characteristic and does not affect performance ✓
- C. Melt the candle completely and pour it again
- D. Paint over the spots with a sealant
Why: Frosting is a natural crystallization that occurs in some waxes, especially soy, as they cool and cure. It is largely cosmetic and does not harm the candle's burn or scent, though it can be minimized with controlled cooling temperatures.
Module 7
Module 7: Safety and Troubleshooting
Safety and Troubleshooting
Knowledge check
Q1. What is the safest way to heat wax for candle making?
- A. Place the wax pitcher directly on a stove burner over high heat
- B. Use a double boiler or a dedicated wax melter so the wax is heated indirectly by water or a controlled heat source ✓
- C. Microwave the wax in a metal container until it is fully liquid
- D. Heat the wax over an open flame to speed up melting
Why: A double boiler or dedicated wax melter heats wax gently and indirectly, which keeps the temperature under control and greatly reduces the risk of overheating, scorching, or ignition. Wax can reach its flash point if heated directly over high heat, so direct heating is unsafe.
Q2. If melting wax catches fire, what should you do first?
- A. Pour water on the burning wax to put it out
- B. Carry the pot outside while it is still burning
- C. Cover the pot with a metal lid to cut off oxygen, turn off the heat source, and leave the lid in place until it cools ✓
- D. Blow on the flames to extinguish them
Why: Wax fires are grease-type fires, and water can cause the burning wax to splatter and spread the fire. Smothering the flames with a lid removes oxygen, and turning off the heat stops further heating. Never move a burning pot or blow on the flames.
Q3. Why should you never leave melting wax unattended?
- A. Wax becomes sticky and hard to stir if left alone
- B. Wax can overheat quickly, reach its flash point, and ignite without warning ✓
- C. Wax fumes will build up and become toxic within minutes
- D. Unattended wax will lose its fragrance
Why: Wax can heat past its safe temperature quickly, and once it reaches its flash point it can ignite. Monitoring the temperature with a thermometer and staying nearby prevents accidents.
Q4. A candle is tunneling, meaning the wax melts only in the center and leaves a thick wall around the edge. What is the most likely cause?
- A. The wick is too short for the jar
- B. The wick is too large, so the flame burns too hot
- C. The candle was burned for too short a time on its first use, so the melt pool did not reach the edges of the container ✓
- D. The fragrance oil was added at too high a percentage
Why: Tunneling usually happens when the first burn is too short, so the melt pool does not spread to the full diameter of the container. Each subsequent burn then deepens the tunnel. Burning the candle long enough on the first use (roughly one hour per inch of diameter) usually fixes the problem going forward.
Q5. Your finished candle has a sunken center and small holes or cracks on the surface. What is the most likely cause?
- A. The wax was poured while it was too hot, and the candle cooled too quickly at the top, or it was poured at too low a temperature ✓
- B. The wick was trimmed too short before the candle was lit
- C. The candle was stored in a room that was too bright
- D. Too much dye was added to the wax
Why: Sinking and surface cracks, often called frosting or air pockets, are usually caused by temperature issues during pouring and cooling. Pouring too hot can cause excessive shrinkage, and rapid cooling at the surface traps air. Pouring at the recommended temperature and allowing a slow, even cool-down, sometimes with a second pour to fill dips, helps prevent this.