Candle Wax Types Explained: Soy, Paraffin, Coconut and More

The wax you choose is the single biggest decision in candle making. It determines how long your candle burns, how strongly it fills a room with fragrance, how the surface looks through clear glass, and how your brand is perceived by customers. There is no universally "best" wax — each type has strengths and trade-offs, and the right choice depends on your priorities: scent throw, appearance, burn time, price point, or environmental credentials.

At Coloured Bottles, we have supplied candle glass to makers working with every wax type for over 35 years. This guide draws on that experience to give you a practical, honest comparison of every major candle wax — including how each one behaves inside glass containers specifically.

Soy Wax

Soy wax is made from hydrogenated soybean oil and has become the most popular choice for container candles over the past two decades. Its rise is driven by strong marketing as a "natural" and "clean-burning" alternative to paraffin, combined with genuinely good performance in glass vessels.

Burn Characteristics

Soy wax burns slowly and at a relatively low temperature, which means longer burn times compared to paraffin at equivalent wax weights. It produces minimal soot when properly wicked, and the lower burn temperature means the glass stays cooler — a safety advantage, particularly for thin-walled containers.

Scent Performance

Soy delivers a moderate scent throw. Its cold throw (the scent from an unlit candle) is generally good, but its hot throw (the scent when burning) is less powerful than paraffin or coconut. For makers who want strong room-filling fragrance, soy may need to be pushed to its maximum fragrance load of around 10%, or blended with another wax.

Appearance in Glass

Soy wax sets to a creamy white colour that looks attractive through clear glass. However, it is prone to frosting — a crystalline white bloom that appears on the surface and sides over time. Frosting is purely cosmetic and does not affect performance, but it is visible through clear glass and can concern customers who mistake it for a defect. Soy can also develop wet spots (areas where the wax pulls away from the glass) more readily than other waxes.

Working Properties

• Melting point: 46–51°C
• Recommended pour temperature: 49–57°C
• Fragrance load: 8–10% maximum
• Cure time: 1–2 weeks for optimal scent throw

Pros and Cons

Paraffin Wax

Paraffin is the oldest and most widely used candle wax in the world. It is a by-product of petroleum refining and remains the benchmark against which all other waxes are measured for scent throw and surface finish.

Burn Characteristics

Paraffin burns at a higher temperature than soy, which means faster wax consumption and shorter burn times at equivalent weights. However, the higher burn temperature also means a stronger and more consistent hot throw. Paraffin candles fill a room with fragrance more effectively than almost any other single-ingredient wax.

Scent Performance

This is where paraffin excels. It has the highest fragrance capacity of any common candle wax — up to 12% in some formulations — and its higher burn temperature drives fragrance into the air more aggressively. If maximum scent throw is your primary goal, paraffin is hard to beat.

Appearance in Glass

Paraffin produces a glossy, smooth, glass-like surface that looks stunning through clear containers. It holds colour exceptionally well, producing vivid, saturated hues that soy simply cannot match. It does not frost. The main cosmetic issue is that paraffin can shrink more during cooling, sometimes requiring a double-pour technique to achieve a flat, even top.

Working Properties

• Melting point: 46–68°C (varies by grade; container grades are typically 52–58°C)
• Recommended pour temperature: 60–71°C
• Fragrance load: 6–12% depending on grade
• Cure time: 48 hours minimum, 1 week preferred

Pros and Cons

Beeswax

Beeswax is the oldest candle-making material in history and carries an inherent sense of luxury. It is a natural product secreted by honeybees and has distinctive characteristics that set it apart from every other wax.

Burn Characteristics

Beeswax has the longest burn time of any natural wax. Its high melting point means it burns very slowly, making it exceptionally economical despite its higher cost per kilogram. It also produces a warm, bright flame.

Scent Performance

Beeswax has a naturally sweet, honey-like aroma that many people find appealing on its own. However, this natural scent can interfere with added fragrance oils. Beeswax also has a lower fragrance capacity (typically 3–6%), making it a poor choice if strong artificial fragrance is your goal. It is best suited for unscented candles or candles with very subtle, complementary fragrances.

Appearance in Glass

Beeswax sets to a warm golden-yellow colour that is distinctive and attractive through clear glass. It naturally develops a white bloom (similar to chocolate) over time, which some consumers find charming and others find off-putting. It can be filtered and bleached to a paler colour, but this removes much of its character.

Working Properties

• Melting point: 62–65°C
• Recommended pour temperature: 62–66°C
• Fragrance load: 3–6% maximum
• Cure time: 48 hours minimum

Pros and Cons

Coconut Wax

Coconut wax has rapidly become the darling of the luxury candle market. Made from cold-pressed coconut oil that is then hydrogenated, it offers a combination of excellent scent throw, beautiful aesthetics, and strong eco credentials that appeals to premium brands and discerning consumers.

Burn Characteristics

Coconut wax burns slowly and cleanly, similar to soy. It produces a wide, even melt pool and relatively low soot. The burn temperature sits between soy and paraffin, giving it a good balance of burn time and fragrance release.

Scent Performance

This is one of coconut wax's standout qualities. It offers excellent scent throw — both cold and hot — that rivals paraffin without the petroleum origin. Fragrance oils bind well with coconut wax, and the moderate burn temperature releases them steadily throughout the candle's life.

Appearance in Glass

Coconut wax produces a beautifully smooth, creamy finish that looks luxurious through clear glass. It has less tendency to frost than soy and adheres well to glass walls, reducing wet spots. The natural colour is a soft cream-white that photographs well and accepts dyes readily.

Working Properties

• Melting point: Varies by blend, typically 40–48°C
• Recommended pour temperature: Varies by supplier, typically 55–60°C
• Fragrance load: 6–10%
• Cure time: 1–2 weeks

A Note on Blending

Pure coconut wax is very soft — almost like a thick oil at room temperature. For this reason, it is almost always sold as a blend (typically with soy, paraffin, or other hardening agents) or formulated with additives for structural integrity. When a product is marketed as "coconut wax," check the specification — it is likely a coconut-dominant blend. This is not a negative; the blends are specifically engineered for container candle performance.

Pros and Cons

Rapeseed Wax

Rapeseed wax is a European-grown alternative to soy that has been gaining significant traction in the UK candle market. Made from the oil of the rapeseed plant (the same plant that produces canola oil), it offers similar performance to soy with the added benefit of a shorter, more transparent supply chain.

Burn Characteristics

Rapeseed wax burns slowly and cleanly, very similar to soy. It produces a good melt pool and low soot. Many makers find it performs identically to soy in terms of burn time and flame behaviour.

Scent Performance

Rapeseed generally offers good scent throw — slightly better than soy in some formulations, though not quite reaching the levels of paraffin or coconut. It holds fragrance well and releases it steadily. Some makers report that rapeseed has a more "neutral" base than soy, allowing the fragrance to come through more cleanly.

Appearance in Glass

Rapeseed wax produces a clean, smooth finish in glass. It frosts less than soy in some formulations, though this varies by supplier and grade. The natural colour is a pale cream that accepts dyes well.

Working Properties

• Melting point: Varies by grade, typically 42–52°C
• Recommended pour temperature: Varies by supplier, typically 50–58°C
• Fragrance load: 8–10%
• Cure time: 1–2 weeks

Why It Matters for UK Makers

Rapeseed is grown extensively across the UK and Europe. Choosing rapeseed wax means a shorter supply chain, lower transport emissions, and support for European agriculture. For brands that emphasise sustainability and provenance, rapeseed wax tells a compelling story — especially when paired with UK-manufactured candle glass.

Pros and Cons

Wax Blends

Many of the best-performing candles on the market use wax blends rather than a single ingredient. Blending allows you to combine the strengths of different waxes while minimising their weaknesses.

Popular Blend Combinations

Soy/Coconut (60:40 or 70:30) — The most popular premium blend. Combines soy's clean burn and affordability with coconut's superior scent throw and smooth finish. Reduces frosting compared to pure soy. This blend hits the sweet spot for many luxury candle brands.

Soy/Paraffin — "Parasoy" (70:30 or 80:20) — Adds paraffin's scent throw and colour vibrancy to a soy base. The result is better hot throw and a smoother surface than pure soy, while still being majority plant-based. A pragmatic choice for makers who want performance without going fully paraffin.

Coconut/Rapeseed (50:50) — A fully plant-based premium blend with excellent scent throw and eco credentials. Growing in popularity among UK makers who want both performance and a sustainability story.

Soy/Beeswax (80:20) — Adds beeswax's rigidity and warm colour to a soy base. Produces a harder candle with a slightly warmer appearance. The beeswax scent is very subtle at this ratio.

Why Blend?

Single-ingredient waxes always involve compromise. Soy frosts but burns clean. Paraffin throws scent but comes from petroleum. Coconut looks beautiful but is too soft alone. Blending lets you design a wax formula that matches your specific priorities — whether that is maximum scent throw, the smoothest possible finish, or a fully renewable composition.

Complete Wax Comparison

The following table summarises the key characteristics of each wax type side by side. Use it as a quick reference when choosing a wax for your next candle project.

Which Glass Suits Which Wax?

Not all wax-glass combinations are equal. The shape, size, and wall thickness of your container should be considered alongside your wax choice for the best results.

Soy Wax and Glass

Soy works well in virtually any glass shape because of its good adhesion and low burn temperature. Straight-sided containers like the deep tub produce the most even burn pool. The 10cl Conique and 10cl Travel Glass are popular choices for soy-based sample and travel candles.

10cl Conique Candle Glass — View Product

Paraffin Wax and Glass

Paraffin's higher burn temperature means you should use thicker-walled, heat-resistant glass. The 100cl Deep Tub and 1kg Large Glass are excellent choices — their substantial walls handle the heat well. Avoid thin-walled or tapered containers with paraffin unless you have thoroughly tested the glass temperature during a full burn.

Coconut Wax and Glass

Coconut wax's smooth, creamy finish looks best in straight-sided clear glass where the surface is fully visible. The 150ml Beaker Vessel is an excellent choice for coconut-wax candles — its minimalist shape complements the wax's luxurious appearance.

Beeswax and Glass

Beeswax's warm golden colour shows beautifully through clear glass. Its slow burn makes it well-suited to smaller containers where a long burn time in a compact format is valued. The 10cl Travel Glass works well for premium beeswax candles.

Rapeseed Wax and Glass

Rapeseed behaves similarly to soy in glass — good adhesion, clean finish, works in most shapes. For a fully UK/European-sourced candle, pair rapeseed wax with glass from a British supplier like Coloured Bottles.

Frequently Asked Questions

Which wax is best for beginners?

Soy wax is the most forgiving wax for beginners. It has a low melting point, is easy to clean up with warm soapy water, adheres well to glass, and is widely available with plenty of online guidance. Start with soy, learn the fundamentals, and then experiment with other waxes and blends as your confidence grows.

Can I mix different wax types together?

Yes, and many professional candle makers do exactly this. The key is to test your blend thoroughly before producing a full batch. Start with established ratios (such as 70:30 soy/coconut) and adjust from there. Always test the burn performance, scent throw, and appearance in your specific glass container.

Why does my soy candle have a white film on the surface?

This is frosting — a natural crystallisation process that occurs in soy wax. It is purely cosmetic and does not affect the candle's burn performance or scent throw. Pouring at a lower temperature and cooling slowly can reduce frosting, but it may still appear over time, especially in clear glass.

Is paraffin wax safe to burn indoors?

Yes. When properly wicked and burned in a well-ventilated room, paraffin candles are safe. All candle waxes produce some combustion by-products (including soy), and the quantities are well within safe limits for normal household use. The key to a clean burn with any wax is proper wick sizing and trimming.

What is the strongest-scented candle wax?

Paraffin has the highest fragrance capacity and the strongest hot throw. Coconut wax is a close second, with the advantage of being a renewable resource. For a plant-based option with strong scent throw, a soy/coconut blend is the most popular choice.

How long should I cure my candles?

Curing allows the fragrance to bind fully with the wax, improving scent throw. Soy and coconut waxes benefit from 1–2 weeks of curing. Paraffin needs a minimum of 48 hours, though a week is better. Beeswax can be burned after 48 hours. Always test your candles at different cure stages to find the optimal time for your specific wax and fragrance combination.

Is coconut wax really sustainable?

Coconut wax is made from a renewable resource and the coconut palm is a productive, long-lived crop. However, some sustainability concerns exist around tropical agriculture and supply chains. For UK makers who prioritise short supply chains, rapeseed wax is a strong European-grown alternative. Both are significantly more sustainable than paraffin.

Does the glass container affect how the wax burns?

Absolutely. The diameter of the container determines how wide the melt pool needs to be (and therefore which wick size you need). The wall thickness affects heat retention. The shape can influence airflow around the flame. Always test your wax in the specific candle glass you plan to use — a recipe that works perfectly in one container may perform differently in another.

For a complete walkthrough of the candle-making process — from choosing glass to finishing for sale — see our Ultimate Candle Making Guide.

Browse Our Candle Glass Collection