How do you keep apples that are cut from turning brown?

There are several ways to prevent apples from turning brown after they have been cut:

1. Lemon juice: Lemon juice contains citric acid, which can help to prevent the apples from browning. Simply squeeze a small amount of lemon juice over the cut surfaces of the apples and toss to coat.
2. Cold water: Soaking the cut apples in cold water for a few minutes can help to slow down the browning process. Be sure to change the water every 20-30 minutes to keep the apples fresh.
3. Saltwater solution: Mixing together a solution of cold water and a pinch of salt can also help to prevent the apples from turning brown. Soak the cut apples in the solution for a few minutes before serving.
4. Airtight storage: Storing the cut apples in an airtight container or bag can help to prevent them from coming into contact with oxygen, which can cause them to brown.
5. Antioxidant solutions: There are also commercial products available that contain antioxidants, which can help to prevent the cut apples from browning. Simply follow the instructions on the package to use these products.

It is important to note that these methods can help to slow down the browning process, but they will not completely prevent the apples from turning brown over time.