Debating The Best Soy Wax For Candle Jars

Last week we were paid a visit by representatives from Elevance Renewable Sciences, the new owners of the Cargill’s C series NatureWax products. Attending the meeting was none other than Tim Murphy, one of the inventors of commercial soy wax and a regular speaker at the IGCA and the National Candle Association conferences. At Elevance, Tim’s primary function is product development and technical support. Tim is an expert in the field and gave us some interesting ideas on how to address common problems with making soy candles, e.g. “fat bloom”, glass adhesion, scent throw, and color vibrancy.

Current “green” marketing trends are forcing major candle manufacturers to switch to pure soy blends to be competitive. As such, Tim noted that many retailers are now requiring either 100% soy or soy blends. This creates several issues for the average candle maker that Tim kindly addressed to the best of his ability. What we found was that there was no quick and easy solution, regardless of the type of wax you choose. The major problem (fat bloom) with soy is entirely cosmetic, meaning that it has nothing to do with its performance as a candle making wax.

I learned that NatureWax C3 and Ecosoya Advanced are chemically almost exactly the same wax. The difference? Ecosoya Advanced has some expensive additives to minimize fat bloom. You can pour at a lower temperature to avoid issues with cooling rates in cold climates. That definitely benefits candle makers that cannot control room temperature during the cooling process after the candle jars have been filled. NatureWax C3, on the other hand, is designed to adhere to the glass walls easily. This eliminates wet spots and other areas where the wax has pulled away from the jar walls (which we witnessed on all Ecosoya candle jars). In addition, NatureWax C3′s adhesion properties create superior color, far more vibrant than Ecosoya when poured with the exact same liquid dyes. Also, C3 appeared to have a better cold and hot scent throw overall.

The above benefits of each wax were evaluated objectively by our internal team, Elevance representatives and a local candle maker who participated in the experiment to test both waxes (400 candles of each). If your primary share this site concern is fat bloom, you live in a cold climate and you cannot control the cooling rate of wax after pouring, then Ecosoya Advanced is probably the best choice for your candle jars. If you live in a mild climate, can control room temperature or maintain a consistent cooling rate of 2 degrees Celsius per minute, then NatureWax C3 is your best option for pure soy container blend.

NatureWax C1, although not tested during our evaluation, is a natural soy blend composed of 85% soy and 15% other veggie waxes. According to Tim, C1 performs in an equivalent manner to Ecosoya Advanced. If your customers do not require 100% soy blends, then this wax costs about 30% less than Ecosoya Advanced. We are anxious to test the C1 wax coming in this week. I’ll follow this article with an update on C1 as we compare test results on Ecosoya and NatureWax C1.

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