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In short, sodium lactate is a liquid salt derived
from the fermentation of sugars found in corn
and also a versatile and beneficial additive
which plays a crucial role in the art and science
of soapmaking. Commonly found in dairy
products, sodium lactate enhances the
soapmaking process and improves the final
product.
We use it as a hardening agent. When added to the soap mixture, sodium lactate accelerates the hardening process, allowing us to unmold our soaps faster. This is particularly useful for intricate designs and molds, as it helps prevent soft or sticky soap that might otherwise deform during the curing phase.
Moreover, sodium lactate contributes to the overall quality of the soap by increasing its durability and longevity. The hardened soap is less prone to becoming mushy and dissolving quickly in water, providing a longer-lasting and more satisfying product for users. It's also a good stand-in for palm oil.
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But is sodium lactate natural? The answer lies in its origin. While sodium lactate can be derived from natural sources, the commercially available product may undergo a chemical process to ensure purity and consistency. In its natural form, sodium lactate is often a byproduct of fermentation, where sugars are metabolized by bacteria. This fermentation process can occur in various organic materials, including corn and beets, making the source of sodium lactate potentially natural.
However, the sodium lactate used in soapmaking is often refined to meet specific standards. It undergoes purification processes to remove impurities and is then synthesized for commercial use. While the end result may not be directly extracted from a plant or animal, it can be considered a nature-derived compound.
While the term "natural" can be subjective, considering its origins and minimal processing, sodium lactate can be viewed as a nature-inspired additive that enhances the performance of handmade soaps.
If you are a label reader, you will see sodium lactate is near the end of our ingredients list meaning we only use about a teaspoon of it per pound of soap batter.