Preheat your oven to 175°F (80°C) or set your food dehydrator according to the manufacturer's instructions.
Peel the bananas and slice them into thin, even rounds, approximately 1/8 inch thick.
Dip each banana slice into the lemon juice to coat them well.
Line baking sheets with parchment paper and arrange banana slices in a single layer.
Bake for 2-3 hours, flipping halfway, or dehydrate according to the recommended time.
Once done, remove from heat and let cool completely before storing in an airtight container.
