How to Make Banana Chips: Oven, Air Fryer, Dehydrator

Store-bought banana chips are often chewy, overly sweet, or greasy—but homemade banana chips are a completely different snack. Making them at home requires just bananas and a few pantry staples, with methods that work in air fryers, dehydrators, and ovens. Below is a detailed guide covering the process, equipment, and variations to help you achieve consistently crisp results.

Baking time: 1.5–2 hours ·
Dehydrating temp: 135°F ·
Dehydrating time: 8 hours ·
Air fryer time: 25 minutes ·
Slice thickness: ¼ inch

The table below consolidates the key parameters that most recipes agree on.

What is the process of making banana chips?

The basic process involves peeling, slicing, treating, and drying bananas until they reach the desired texture. Whether you’re using an oven, dehydrator, or air fryer, the core steps remain similar—only the temperature and time shift. Thickness matters most: inconsistent slices mean some pieces burn while others stay chewy.

Ingredients needed

• Ripe or firm bananas (green/yellow for crispier, riper for sweeter)
• Lemon juice (prevents browning and adds flavor)
• Optional: oil spray, cinnamon, salt, stevia

Basic steps

1. Peel bananas and slice to ¼ inch thickness using mandoline or sharp knife
2. Coat lightly with lemon juice to prevent browning
3. Arrange in single layer on baking tray or dehydrator tray
4. Apply seasoning (cinnamon, salt) if desired before drying
5. Dry or bake until crispy, then cool 3–10 minutes

How do you make dried banana chips?

Dried banana chips rely on low-temperature evaporation over extended time. The dehydrator method is the traditional route, while air fryers offer a faster alternative when set to lower temperatures. Both approaches require patience—rushing the process produces rubbery results.

Dehydrator method

Slice bananas to ¼ inch or less, layer on trays without overlapping, and dry at 135°F for about 8 hours (Real Food Real Deals). No oil is needed for plain dehydrated bananas. The result is chewy if removed at 8 hours, crispier if left longer. Some sources recommend flipping every hour or two.

Oven alternative

For oven drying, set temperature to the lowest available (typically 170–200°F) and bake 1.5–2 hours until crispy. Lemon brush prevents browning. Flip halfway through. This method requires more babysitting than a dehydrator but works with standard kitchen equipment.

The implication: your equipment choice determines whether you trade time for attention during cooking.

Are banana chips just dehydrated bananas?

Not always. Commercial banana chips fall into two categories: those made by deep-frying unripe plantains (common in South Asia, called banana chips) and those made by dehydrating ripe bananas. Homemade versions typically use the dehydration approach for a cleaner snack.

Dehydrated vs fried

Fried banana chips absorb oil and develop a crisper texture quickly but add significant calories. Dehydrated banana chips retain more of the fruit’s natural sugars and require no added fat. The trade-off: fried chips crisp in minutes; dehydrated chips take hours.

Home vs commercial

Commercial dehydrators in factories run at precise temperatures for consistent results. Home dehydrators work fine but need longer run times. Air fryers bridge the gap—they dry faster than oven baking but can mimic dehydrator-style low-temp results if the model supports it (Recipe This).

The catch: homemade chips rarely match factory consistency, but you control every variable from slice thickness to added ingredients.

Are Banana Chips Healthy?

Banana chips inherit the banana’s natural sugar content, which concentrates during dehydration. Plain dehydrated banana chips are gluten-free, vegan, and nut-free, but they’re still calorie-dense. Versions with added oil or sugar coating are less healthy. The preparation method determines where your snack falls on the nutrition spectrum.

Nutritional benefits

• Potassium and fiber from whole bananas
• No artificial preservatives in homemade versions
• Control over added ingredients
• Suitable for gluten-free and vegan diets (Cheap Lazy Vegan)

Health concerns

• Natural sugars concentrate during dehydration
• Added oil or sugar coatings increase calorie density
• Commercial fried versions contain added fats
• Serving size matters more than preparation method

How to make banana chips in the oven?

Oven baking is the most accessible method—no specialized equipment needed beyond a baking sheet. The tradeoff is time and attention: you’ll need to monitor the bananas and flip them halfway through. Results are generally crisp and satisfying, though not as evenly dried as dehydrator output.

Air fryer variation

Air fryers significantly reduce cooking time. A typical approach: preheat to 200°F/100°C, slice bananas ¼ inch thick, coat with lemon juice, salt, and oil spray, then air fry 20 minutes, flip, and air fry 10–15 more minutes (The Big Man’s World). Higher temperatures (300–350°F) produce crispier results faster but require closer monitoring.

Microwave option

Microwave drying works in a pinch but produces uneven results. Slice paper-thin, arrange on parchment, and microwave in 30-second intervals checking frequently. This method suits emergency snack situations but isn’t recommended for batch preparation.

Food Banjo explains the key principle: “The key is the longer cook time and lower temperature. That’s what you need to properly dry out the bananas to really get those crispy dehydrated banana chips.”

The Picky Eater confirms the process is simpler than expected: “Making banana chips at home is way easier than you might think!”

Summer Yule notes the equipment variable: “Ninja air fryer tested for 10–12 min at 350°F”—times vary by model, slice thickness, and ripeness.

Related reading: Banana Cake Recipe NZ

Frequently asked questions