Cera di soia — Frequently Asked Questions

Our minimum order quantity for soy wax is 200 kg (1 pallet) for packed (flake/pellet) orders and 20 MT for full container loads, which is the most cost-effective bulk format. Small candle makers and independent brands can order from 25 kg cartons as a starting quantity. Sample packs (1–5 kg) are available for performance testing and wick selection. High-volume candle manufacturers and contract candle producers can access tiered pricing with significant discounts from the second FCL upward. Contact our candle industry sales team for a volume-appropriate quotation and lead time.

Our container-grade soy wax supports fragrance loading of 6–10% by weight, with optimal performance typically at 7–8% for most fragrance oil types. Pillar-grade soy wax supports slightly lower fragrance loads of 5–7% due to its harder formulation. Fragrance loading capacity depends on the specific fragrance oil's polarity and solubility in soy wax — high-polarity fragrances may bind better than others.

We recommend performing your own small-batch fragrance testing to confirm the optimal load for your specific fragrance. Our technical team can provide guidance on maximum fragrance load without seepage or sweating issues.

Soy wax prices are linked to soybean oil commodity prices and hydrogenation processing costs, and fluctuate with agricultural market conditions. Bio Green Wax provides competitive pricing for soy wax in flake and pellet formats. To receive a current market price, please contact our sales team with your required grade (container or pillar), certification requirement (standard, non-GMO, or organic), order volume, and destination.

Pricing is significantly more competitive for FCL orders versus small parcel shipments. We also offer fixed-price annual supply agreements for high-volume candle manufacturers seeking cost certainty.

Yes. All soy wax supplied by Bio Green Wax is produced by catalytic hydrogenation of fully refined, bleached, and deodorised (RBD) soybean oil. Hydrogenation converts the liquid oil into a solid wax by saturating the unsaturated fatty acid chains, resulting in a natural, plant-based wax with a clean, white appearance and characteristic mild odour. The degree of hydrogenation determines the melting point and hardness of the final wax.

Full hydrogenation (iodine value below 5) produces harder wax suitable for pillar grades, while partial hydrogenation yields softer container grades. CoA with iodine value and melting point confirmation is supplied with every batch.

Our container-grade soy wax is formulated to achieve good glass adhesion in standard clear glass jars under typical indoor conditions without mandatory additives. However, the best results are achieved by following our recommended pour temperature of 55–65°C (approximately 10–15°C above the melting point).

For manufacturers in very cold climates or using thick-walled jars, a small addition of coconut oil (2–5%) or a commercial adhesion additive may further improve wet spots and pull-away. Our technical data sheet provides full guidance on pour temperature, cooling rate, and container pre-warming to maximise adhesion quality in your production environment.

Soy wax, including our container-grade formulations, is prone to minor surface imperfections such as sinkholes and wet spots (where the wax pulls away from the glass due to uneven cooling).

These are characteristic behaviours of natural soy wax and can be minimised with proper technique: pouring at the correct temperature (55–65°C), ensuring the glass jar is at room temperature (not refrigerated), cooling slowly at ambient temperature, and avoiding drafts. A second pour (top-up pour) is recommended to fill sinkholes. Frosting — a white bloom on the wax surface — is a natural characteristic of soy wax and not a quality defect.

Our technical guide provides step-by-step recommendations.

Bio Green Wax supplies soy wax in natural flakes (the most common format, easy to measure and melt), small pastilles/pellets (for automated weighing and dispensing systems in large-scale candle production), and solid blocks (for very high-volume buyers with large-capacity melting tanks). Flakes are packaged in 25 kg cartons or bags; pellets in 25 kg bags or 1,000 kg supersacks; and blocks in custom sizes on request. Flakes are the most popular format for small and medium candle producers. Please specify your preferred format and production scale when placing your enquiry.

Yes. Bio Green Wax soy wax is 100% plant-derived (from soybeans), contains no animal-derived ingredients, and is not tested on animals — fully qualifying it as vegan and cruelty-free. Vegan Society certification or equivalent third-party vegan certification documentation is available on request for brands making on-label vegan claims. Cruelty-free declaration letters are also available.

These certifications are increasingly important for premium candle brands targeting ethical consumer markets in Europe, North America, and Australia. Please specify your certification requirement when enquiring and we will confirm the appropriate documentation available.

5% (as oleic acid), confirming its high degree of hydrogenation and refined raw material base. 1%, which is essential for candle making — excess moisture causes splattering during melting and surface bubbles in finished candles. Both parameters are tested and confirmed in the CoA for each production lot. Low FFA and moisture levels also contribute to longer shelf life and better fragrance retention in finished candles.

Contact us if you require tighter specifications for speciality cosmetic or pharmaceutical-grade soy wax applications.

Yes. Bio Green Wax supplies cosmetic-grade soy wax (also called hydrogenated soybean oil, INCI: Glycine Soja (Soybean) Oil, Hydrogenated) for use in body butters, lip balms, skin balms, and solid lotion bars. Cosmetic-grade soy wax has full INCI documentation, EU Cosmetics Regulation compliance, and Halal/Kosher certification. It functions as a natural thickener and emollient, providing skin-conditioning benefits and a smooth application feel.

Please note that cosmetic-grade soy wax may have different particle size, colour, or testing specifications than candle-grade wax — contact our cosmetics ingredients team for the appropriate product grade.

Our container-grade soy wax delivers a moderate to good cold throw (fragrance detectable from the unlit candle) and a good hot throw (fragrance release during burning). Hot throw performance is strongly influenced by fragrance oil quality, wick size selection, and jar diameter — these factors are outside the wax specification but are within the candle maker's control.

Soy wax generally provides a cleaner burn and more even hot throw compared to paraffin due to its lower melt pool temperature. For maximum scent throw, we recommend using fragrance oils with a flashpoint above 65°C and testing wick sizes from our recommended wick chart for your specific jar diameter.

Soy wax from Bio Green Wax is available in: 25 kg corrugated cartons (flakes — popular for small candle makers), 25 kg multi-wall paper bags (flakes or pellets), 500 kg and 1,000 kg supersacks/jumbo bags (for large-scale automated production), and pallet quantities (typically 600–800 kg per pallet). All packaging is clearly labelled with product name, grade, non-GMO status (if applicable), net weight, batch number, and production date.

Palletised cartons and bags are stretch-wrapped for safe container transport. Please specify your preferred packaging format and production scale when placing your enquiry.

Yes. Both our container-grade and pillar-grade soy wax formulations are suitable for wax melt (tart/snap bar) production. Container grade produces softer wax melts with excellent fragrance release at typical wax warmer temperatures (50–70°C). Pillar grade or a slightly harder soy blend may be preferred for wax melts that need to retain shape during shipping in warm conditions.

For tealights, our container-grade soy wax performs well in aluminium tealight cups with the correct cotton wick selection. We recommend a fragrance loading of 8–10% for wax melts to maximise scent throw. Technical guidance and wick selection charts are available from our candle technical team.

For container-grade soy wax, we recommend a pour temperature of 55–65°C (30–35°C above the soy wax cloud point) into pre-warmed glass containers at room temperature. Pouring too hot causes adhesion problems; pouring too cool causes rough surfaces. Allow candles to cure at room temperature for 24–48 hours before testing burn performance.

For wick selection, we recommend cotton or paper-core wicks (CD, ECO, or LX series) sized according to your jar diameter — starting 1–2 sizes below what you might use for paraffin with the same jar. Our wick selection guide and burn test recommendations are available from our technical support team on request.

Bio Green Wax soy wax is available with the following certifications depending on the specific grade ordered: Non-GMO declaration or Non-GMO Project Verification, USDA BioPreferred (bio-based content certification), USDA Organic (for organic-certified grades, subject to availability and premium), Vegan/cruelty-free declaration, and Kosher/Halal certificates.

USDA BioPreferred certification confirms that soy wax is a bio-based product (100% bio-based content), which is relevant for buyers supplying US federal procurement or making bio-based product claims. Please specify your certification requirements when enquiring and we will confirm availability.

Yes. Soy wax blends beautifully with beeswax (adding hardness, opacity, honey scent, and extended burn time), coconut wax (adding creaminess, improved glass adhesion, and enhanced scent throw), and rapeseed wax (for an EU-origin natural wax blend). Common premium blend ratios include 70:30 soy/beeswax (for longer-burning pillar candles), 60:40 soy/coconut (for luxury container candles), and soy/coconut/beeswax triple blends.

Bio Green Wax supplies all of these wax components individually and can facilitate custom blending for high-volume buyers. Contact our wax blending team to discuss your target candle specification and we will design an appropriate blend.

For UK and European candle manufacturers, standard lead times for soy wax from our principal supply origins are 4–6 weeks from booking confirmation to delivery. For buyers in the UK, Germany, France, Poland, and the Netherlands, we also work with European distribution partners who hold stock for faster 1–2 week delivery windows on popular grades. Small parcel orders (under 500 kg) may be eligible for rapid express freight delivery.

Long-term contract buyers benefit from pre-positioned inventory and guaranteed delivery windows. Contact our European candle supply team to discuss a structured supply arrangement tailored to your production schedule.

Yes. Bio Green Wax offers sample packs of 1 kg and 5 kg for candle makers and cosmetics formulators who wish to test performance before committing to a full order. Samples of container-grade, pillar-grade, and non-GMO certified soy wax are available. A small sample handling fee may apply. We recommend ordering samples alongside a fragrance and wick type you intend to use in production for a realistic performance trial. Our technical team is available to guide you through the test process and provide a burn test evaluation checklist. Contact our sales team to request your sample today.