Cold soap requires 45-60 days of natural saponification time. After receiving the soap, please open the package and store it in a cool and dry place. Can be used after maturity. It is recommended to use within one year after expiration. Friends who know how to store soap can store soap in moderation. The more soap, the more cold soapy water. Cold soap is weakly alkaline. Cold soap is the product of oil, sodium hydroxide and water.