Chloe Adams
Beeswax candles are a popular choice for many, but they can be prone to cracking. This is usually caused by the wax cooling too quickly, which can happen if the candles are cooled in an environment that is too cold, or if they are placed too close together. This guide will explore the reasons why beeswax candles crack on top and how to prevent this from happening.
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What You'll Learn
Avoid quick cooling
Beeswax candles are prone to cracking, especially if they are large diameter candles. This is because beeswax shrinks as it cools, and if it cools too quickly, the wax pool hardens and cracks. This is more likely to happen in countries with high AC usage, like the United Arab Emirates, where the candles cool more quickly.
To avoid cracks, it is important to cool your candles gradually in a warm area. Keep them away from the freezer, as freezing temperatures will make the wax brittle and likely to break. Maintain a steady temperature in the room to keep your candles at room temperature.
When making candles, it is also important to pour the wax at the right temperature. The ideal temperature for pouring beeswax is 155-160°F (68-71°C). If you pour the wax too hot, it can crack or form air bubbles. If the wax is too cool, it may harden into clumps and splash into the container.
If you are making container candles, it is also important to fill the container almost to the top to prevent cracks. You can also try letting the candles cool slowly in the oven with the door shut.
By following these tips, you can help prevent your beeswax candles from cracking due to quick cooling.
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Maintain a steady temperature
Maintaining a steady temperature is crucial to prevent beeswax candles from cracking. Here are some tips to achieve this:
Firstly, it is important to control the temperature of the environment where the candles are cooling. Avoid placing them in front of fans, air conditioners, or open windows, as sudden temperature changes can cause cracks. Keep them away from the freezer, as freezing temperatures will make the wax brittle and prone to breaking. Instead, opt for a warm area of your house, such as the top of the stove or inside an oven that has been turned off. This gradual cooling process is essential in preventing cracks.
Secondly, when pouring the wax, aim for a temperature of 155-160° F (68-71° C). This temperature range is ideal because it allows the wax to cool enough to form a film on the surface while still being fluid enough for pouring. If you notice the wax beginning to solidify, return it to the heat source to gently melt it again. A thermometer is a valuable tool to monitor the temperature of your wax during this process.
Additionally, consider the size of your candles. Larger candles have a greater propensity to crack due to the increased potential for uneven cooling. To mitigate this, ensure there is sufficient space between your candles during the cooling process. Elevate them slightly using a wire rack or a towel, and aim for a distance of 2 to 3 inches between each candle. This promotes even airflow and helps prevent cracks caused by rapid temperature changes.
By following these temperature-regulating tips, you can significantly reduce the likelihood of cracks forming in your beeswax candles. A steady temperature encourages even cooling and prevents the wax from becoming brittle or shrinking too rapidly, resulting in smooth, aesthetically pleasing candles.
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Use the right-sized wick
Beeswax candles are prone to cracking, especially larger candles, due to the natural shrinking of beeswax as it cools. This is not a flaw but a reality of burning beeswax. One way to prevent cracks is to ensure a gradual cooling process in a warm area. Another important factor is the use of the right-sized wick.
Beeswax has a higher melting point compared to paraffin and soy wax, requiring a larger wick to burn efficiently. Choosing the correct wick size is crucial to achieving the best flame-to-burn ratio, allowing the candle to burn brightly, avoid tunnelling, and burn down almost entirely. A thicker wick is necessary for beeswax candles due to its higher melting point.
When selecting a wick, it is essential to consider the diameter of the candle. Larger-diameter candles are more susceptible to cracking during the cooling process. Therefore, thicker wicks are often required for larger candles to ensure proper burning. The wick should be sized appropriately to allow the melted wax to pass through it effectively.
Additionally, the length of the wick plays a role in the burning process. Some candle manufacturers provide extra-long wicks, enhancing the candle's appearance for display purposes before burning. However, it is important to trim the wick before use to ensure a clean and efficient burn.
To summarise, using the right-sized wick for your beeswax candle is crucial. Consider the candle's diameter and opt for a thicker wick for larger candles. Ensure the wick is long enough but trimmed appropriately before burning to prevent tunneling and promote an efficient and enjoyable burning experience.
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Prevent air bubbles
Beeswax candles are a natural, non-toxic way to light up your home and purify the air. However, they can be prone to cracking, especially if they are large diameter candles. One of the reasons for this is the formation of air bubbles during the candle-making process. Here are some tips to prevent air bubbles and, consequently, cracks in your beeswax candles:
Maintain the Right Temperature
The ideal temperature for pouring beeswax is between 155-160° F. If the wax is too hot, it can form air bubbles and even crack. Pouring at a lower temperature, such as 150° F, can help reduce shrinkage and, therefore, the likelihood of cracks.
Smooth Stirring
Stirring too vigorously or over-stirring can create small air bubbles that become trapped during the cooling process. These bubbles eventually burst, leading to a cracked surface. When stirring, maintain smooth, gentle motions, and avoid over-stirring the wax.
Gradual Cooling
Beeswax candles should be cooled gradually in a warm area to prevent cracks. Avoid placing them in front of fans or in air-conditioned rooms, as this can cause the wax to cool too quickly, leading to shrinkage and cracks. Instead, place the candles in a warm part of your house, such as on top of the stove or in an oven that has been turned off.
Proper Spacing
When cooling multiple candles, ensure they are spaced at least 2-3 inches apart. If glass containers are placed too close together, heat becomes trapped, causing the sides of the jars to cool more slowly than the rest of the candle. This uneven cooling can lead to the formation of air bubbles and cracks.
Use a Heat Gun
If you notice air bubbles or cracks on the surface of your candle, you can use a heat gun to re-melt the surface and smooth it out. A creme brulee torch can also be used to gently graze the top of the candle and even out any imperfections.
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Avoid extreme temperatures
Beeswax candles are prone to cracking due to temperature fluctuations during the cooling process. To prevent cracks from forming, it is essential to maintain a consistent and moderate temperature environment. Here are some detailed tips to avoid extreme temperatures and minimise the risk of cracking:
Firstly, it is crucial to control the temperature of the liquid wax during pouring. The ideal pouring temperature for beeswax is between 155°F and 160°F (68°C and 71°C). At this temperature, the wax will form a thin film on the surface, indicating that it is ready for pouring. Pouring at a lower temperature, such as below 150°F, can help reduce shrinkage and minimise cracks, especially for larger candles.
Secondly, gradual cooling is essential to prevent cracking. Avoid placing your candles in extremely cold environments, such as a freezer, as this will cause the wax to become brittle and more prone to cracking. Instead, allow your candles to cool slowly at room temperature. Maintain a steady ambient temperature and avoid the use of air conditioning or strong drafts, as rapid cooling can lead to cracks.
Additionally, consider the placement of your candles during the cooling process. Keep a distance of 2 to 3 inches between individual candles to prevent heat from becoming trapped between them, which can lead to uneven cooling and cracking. Elevating the candles on a wire rack or towel and using a warm area, such as the top of a stove or a warm oven, can promote even and gradual cooling.
Furthermore, you can use tools like a thermometer to monitor the temperature of your workspace and ensure it remains within an optimal range. A temperature gun can also help you target specific areas and identify any sudden changes. These tools will help you maintain a consistent temperature and avoid both extreme heat and extreme cold, which are detrimental to the integrity of your beeswax candles.
By following these temperature-controlled steps, you can significantly reduce the likelihood of cracks forming in your beeswax candles. Maintaining moderate temperatures and gradual cooling processes are key to ensuring the structural integrity and aesthetic appeal of your handmade creations.
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Frequently asked questions
Beeswax candles crack on top due to the wax cooling and shrinking. Larger candles are more prone to cracking.
To prevent cracks, cool your candles gradually in a warm area. Avoid cooling candles in the freezer or near air conditioning.
Pour beeswax at around 155-160° F. If you are making a two-part pour, let the first layer solidify for 30-45 minutes before pouring the second layer.
Do not heat beeswax over 200° F with a heat gun, as this will cause the wax to break down.
Coat the container or mould with coconut oil or another natural oil to prevent beeswax from sticking to the sides. Keep jars at least 2-3 inches apart when cooling to ensure even cooling.
