Unlike other fruits, pears ripen from the inside out. So if you find that they are soft on the outside, probably they are overripe. A problem with cut pears is that they get brown soon. There are several ways to prevent it. Whether you plan to eat soon or do pre-treatment before any of the types of storage, sliced pears can be dipped in one of the following solutions:• 1/2 cup lemon juice per gallon of water • Pineapple juice, orange juice or other acidic juices – full strength, or diluted by half with water • 2 tablespoons salt per gallon of water • 1 tablespoon citric acid per gallon of water However, the process will only slow down browning instead of preventing it totally.