Place lemon juice in a large cake pan and stir in salt.
Slice apples horizontally into 1/4" thick circles.
Soak slices in lemon juice bowl for approximately 6-10 minutes, making sure each side of the slices has a chance to absorb some of the lemon juice.
Remove the slices from the bowl and place them on paper towels. Pat tops of apple slices with paper towels.
Place apples slices in a single layer on a cooling rack or place them on a baking sheet.
Bake at 150-200 degrees F for 6 hours or until dried.
Apple slices should be slightly pliable.
They will finish air drying with time