The optimal soaking time for lime is typically between 30 minutes to 1 hour. This duration allows the lime to absorb water and become more pliable, making it easier to peel and segment. The exact time can vary depending on the lime's size and ripeness.

The reason for soaking lime is to facilitate the removal of its outer peel, which can be tough and difficult to separate from the fruit. Soaking helps to soften the peel, making it more susceptible to peeling. According to a study published in the Journal of Food Science, the moisture content in limes increases significantly after soaking, which contributes to the softening of the peel. This increase in moisture content is due to the lime's natural osmotic properties, which allow it to absorb water from its surroundings. The study also found that the soaking process can enhance the flavor and aroma of the lime, as the water-soluble compounds in the lime are released into the soaking water.