If fermenting in a jar or crock: Cut the plums in half two more times, into 8 pieces each. This will allow the plums to fit more snugly into the fermentation vessel and eliminate air gaps between pieces. Place the fruit in a bowl, add the salt, and mix well. Use a rubber spatula to scrape the plums and salt into your fermentation vessel of choice—make sure to get every bit of juice and salt.
