A tool designed to assist soapmakers in determining the precise amount of concentrated plant extracts needed for a batch of soap. These calculators typically consider the specific essential oils being used, the size of the soap batch, and the desired scent intensity. For example, a soapmaker might use such a calculator to determine how many ounces of lavender and tea tree oil are required for a 5-pound batch of cold process soap, aiming for a specific fragrance load.
The use of such instruments offers several benefits. Accurate calculation prevents both under-scenting, which results in weak or nonexistent fragrance, and over-scenting, which can lead to skin irritation or soap seizing. These tools promote consistency in soap batches, enabling repeatable results and cost-effectiveness by minimizing waste. Historically, soapmakers relied on experience and trial-and-error, leading to inconsistencies. Modern calculators provide a more scientific and reliable approach.
