In some instances, your clay will require more than your own natural oils and warmth. If this is the case, move on to the next step. If working the clay with your hands is enough to give it new vigor, make sure you store it in a sealed, air-tight bag to prevent drying out again in the future.
If you do not have a bag large enough to fit all of your clay, cut your clay into manageable clumps and practice this method one small piece at a time.
For easier clean-up, you can work with your clay in a sink or tub.
Keep it away from heat or direct sunlight during this process, as both can cause moisture to evaporate.
If your clay has returned to a usable state, you are done!
Once more, avoid heat and sunlight in this step. A bathroom is a great moist environment to allow your clay to sit in.
If the clay remains hard or difficult to work with, it may be past the point of saving, and will need to be replaced.
If you do not have a basin large enough, you can cut your clay into smaller pieces and do this gradually.
Do not stir the clay as it soaks. Stirring will interfere with the soaking process and will not allow the porous nature of your clay to properly take in water.
If your clay does not seem to be affected after 3 days, allow it to soak for an additional day, until it begins to loosen up.
The tools you use may be at risk for coming into contact with clay. If you are not comfortable with the possibility of ruining the ladle or baster, purchase an additional set for this purpose.
To help your clay dry out faster, you can place a fan beside it as it dries.
You can simply place your clay in a sealed container once it has hardened or you can roll it into coils and place your coils into plastic wrap or sealed plastic bags. The length of time you expect to store your clay will play a role in how you store it. If you plan to store it for an extended period of time, tight plastic storage is the preferred method.
Alternatively, you can fill a cup with water and pour the water directly onto the clay. To prevent clogging the drain, lay down a drain trap to catch any runaway pieces of clay.
If the clay persists in being dry or unworkable, add an additional 10 seconds to your underwater kneading time.
If the clay does not become usable again after repeating the steps above 4-5 times, it may no longer be viable.
