Slice the bananas thinly and soak them in lemon water for 5 minutes.

Pat the slices dry and arrange them in a single layer on dehydrator trays, baking sheets, or air fryer basket.

For dehydrator: Dehydrate at 135°F for 10 hours until crisp.

For oven: Bake at 200°F for 2 hours, flipping halfway through until crispy.

For microwave: Microwave slices in a single layer for 1 minute, flip, and microwave in 30-second intervals until crispy.

For air fryer: Air fry at 360°F for 12 minutes, checking and cooking additional minutes if needed for crispness.