Coconut milk have a low solidifying temperature of around 14°C, so if the temperature falls below this, the contents may solidify. This does not affect the quality of the product, and does not mean that the product has curdled. Simply sit the closed can in a bowl of boiling water to bring back to a liquid state, and shake before opening. Alternatively, you can simply spoon the solidified milk or cream into your dish. Coconut Milk is best stored in a pantry, or a dark cool area out of the sun, to keep it in a liquid state.