Some shaving soaps are triple milled. What does that mean?

Triple milling is a manufacturing process that soap makers use to make their products dense and uniform so that they lather better and last longer. A manufacturer uses a special machine to shred and roll the soap until it becomes a smooth paste-like substance. This milling process is repeated three times before the soap is finally molded and allowed to finish the curing process. By doing this, the manufacturer is able to ensure that every puck of soap from the batch is uniform in texture, and that the lather created with its first use is consistent until its last use. This technique is used on all types of soaps, not just shaving soaps. It was first used by French soap makers, and it is common to see soaps labeled as either triple milled or French milled as both terms have the same meaning.

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