Saponify 8LB Olive Oil Melt and Pour Soap Base - Detergent-Free Glycerine Review (2026)

What this soap base is

This is an 8 pound block of olive oil melt and pour soap base from Saponify, a soap supply brand that is a member of the Roundtable on Sustainable Palm Oil, and according to Saponify's own product page, the base combines olive oil with saponified palm kernel oil, palm oil, glycerin, sorbitol, propylene glycol, sucrose, titanium dioxide, and purified water. The brand describes this formula as fully saponified and detergent-free, meaning the cleansing action comes from the saponified oils themselves rather than from synthetic sulfate-based detergents added to boost lather or foam. Saponify also sells this same olive oil base in 2 and 4 pound sizes, along with a 20 pound bulk option, so buyers can scale up once they know how much they typically use.

What detergent-free means for the bar

Saponify states this base is free of SLES and SLS, the synthetic detergents used in many conventional melt and pour bases to create a big, sudsy lather, which typically means a gentler, milder bar suited to sensitive skin but also a lighter, less foamy lather than a detergent-boosted base produces. Makers who want to market toward customers seeking simpler, minimal-ingredient soap will find this distinction useful to highlight, while those chasing the biggest possible bubbles for a bath-bar aesthetic should know upfront that a true detergent-free base will not perform the same way in that regard. Because RSPO membership relates to how the palm ingredients are sourced rather than to the finished soap's performance, it mainly matters to buyers who specifically want to avoid non-certified palm oil in their supply chain.

Working with the base

Saponify recommends dicing the block into small pieces for even melting, then heating it gradually in a microwave using short intervals with stirring, or with a double boiler, to a target range of roughly 120 to 140 degrees Fahrenheit before adding fragrance and colorant. Once poured into molds, the brand's guidance calls for one to two hours of cooling before unmolding, notably faster than the longer set time some other melt and pour bases need, which can be useful for makers working through several mold rounds in a single session. A well ventilated workspace and a thermometer for checking the melt temperature help keep the process consistent from one pour to the next, especially with a larger block like this one.

Sizing and storage

At 8 pounds, this is a larger format aimed at makers doing regular batches or selling at small markets rather than a one-off hobby project, and it represents a meaningful bulk purchase compared to the 2 and 4 pound sizes Saponify also offers. Melt and pour bases in general are sensitive to humidity, which can cause a sweating or beading effect on the finished bar's surface, so an 8 pound block should be kept in a cool, sealed environment between uses to protect the portion not yet melted down. Buyers who want a bigger, sudsier lather may prefer to blend in a small amount of a detergent-boosted base rather than relying on this formula alone for that effect.

Bottom line

This base suits makers who specifically want a gentle, detergent-free olive oil soap with genuine saponified cleansing rather than synthetic foam boosters, and the 8 pound size makes sense for anyone producing soap regularly rather than occasionally. Buyers expecting a heavily sudsing bar should adjust expectations, since detergent-free formulas trade some lather volume for a milder ingredient profile. Proper sealed, cool storage will help the unused portion of this larger block stay in good condition between melting sessions. Anyone unsure whether they will like the lighter lather of a detergent-free base may want to try Saponify's smaller 2 pound size first before committing to the full 8 pound block.

Frequently asked questions