The carrot (Daucus carota) needs little introduction as a food, but its role in cold-process soap is less familiar. At Eternal Sunday, we use fresh-pressed organic carrot juice sourced from a local Ontario farm in place of water in our Turmeric Carrot Revitalizing Unscented Soap. It's one of the most direct expressions of our small-batch approach: a single-origin, seasonal ingredient used in its most natural form.
Why juice instead of water
Cold-process soap requires a liquid to dissolve the lye (sodium hydroxide) before it can be combined with oils and butters to begin saponification. Water is the standard. But any liquid that can safely dissolve lye can serve the same function, and those liquids bring their own characteristics to the finished bar.
Carrot juice is rich in beta-carotene, the same pigment that gives carrots their orange colour. It also contains natural sugars, vitamins, and trace minerals. When used as the water phase, these compounds are present in the soap batter from the very beginning of saponification, rather than being added as an afterthought.
What happens when carrot juice meets lye
This is where soap chemistry gets interesting. When lye is added to carrot juice, the reaction is more dramatic than with plain water. The natural sugars in the juice react with the lye, generating significant additional heat and causing the mixture to turn a deep, vivid orange almost immediately. The batter itself then carries this colour through to the finished bar.
During the curing period, the intensity fades. The finished soap settles into a warm amber-gold, coloured partly by the carrot juice and partly by the turmeric we add to the batter. No synthetic colourants, no oxide pigments, just the natural result of these two botanical ingredients working together.
Local and organic
We source our carrots from a local Ontario farm, which means the juice goes from ground to soap with minimal distance in between. Organic certification ensures the carrots are grown without synthetic pesticides or fertilizers, which is relevant when the juice is being incorporated directly into a product at a meaningful concentration.
Using a fresh, perishable ingredient also means we make this soap in small batches tied to what's available. It's not an ingredient we can stock indefinitely, which is part of what makes the Turmeric Soap what it is.
What it contributes to the finished bar
Carrot juice contributes to a creamy, conditioning lather and a slightly softer skin feel compared to a water-based equivalent. The beta-carotene and natural sugars that survive saponification (and some do) contribute to the bar's character in ways that are difficult to isolate but consistently present. The colour is the most visible contribution: that warm golden tone is entirely natural, the direct result of fresh carrot juice and turmeric combining during saponification.
In our products
Carrot juice appears in our Turmeric Revitalizing Unscented Soap, where it serves as the entire water phase of the formula. It's one of the most local and least processed ingredients we use, pressed fresh, added directly, and transformed through saponification into something that lasts months on a shelf despite starting as a perishable vegetable.
