1. Introduction
This manual provides essential instructions for the safe and efficient use of your Big Boss Oil-Less Fryer / Granitestone Air Fryer & Countertop Oven. This appliance utilizes a powerful fan and 360-degree air convection system to cook food quickly and evenly with little to no oil, offering a healthier alternative to traditional frying methods. Its transparent glass bowl allows for easy monitoring of the cooking process.

Image: The Big Boss Oil-Less Fryer, featuring its distinctive clear glass bowl and top-mounted control unit, ready for use.
2. Setup
2.1 Unboxing and Component Identification
Carefully remove all components from the packaging. Ensure all protective materials are discarded. The main components include the glass bowl, the lid with integrated controls, a mesh basket, high and low cooking racks, an extender ring, and tongs.
Video: A user unboxes the Big Boss Oil-Less Fryer, demonstrating the removal of the main unit, glass bowl, and various accessories from its packaging.
2.2 Initial Cleaning
Before first use, thoroughly wash the glass bowl, mesh basket, cooking racks, extender ring, and tongs with warm, soapy water. Rinse well and dry completely. The main lid unit should be wiped clean with a damp cloth; do not immerse it in water.
Video: A user demonstrates cleaning the glass bowl and metal racks before the first use of the air fryer, emphasizing the importance of removing any manufacturing residues.
3. Operation
3.1 Assembling for Use
- Place the glass bowl securely on its base.
- Insert the desired cooking rack (high or low) or the mesh basket into the glass bowl. For larger items or increased capacity, the extender ring can be placed on top of the glass bowl before adding the lid.
- Carefully place your food onto the rack or into the basket.
- Position the lid with the control panel firmly on top of the glass bowl or extender ring.
3.2 Controls and Settings
The lid features two main dials: a temperature control dial and a timer dial. It also has indicator lights for 'Heat' (green) and 'Power' (red).
- Temperature Dial: Adjusts the cooking temperature from approximately 180°F to 480°F. Recommended temperatures for common foods (e.g., French fries, onion rings, fish, chicken) are marked on the dial.
- Timer Dial: Sets the cooking duration, typically up to 60 minutes.
3.3 Starting and Stopping the Cooking Process
To begin cooking, ensure the lid is properly seated, then push the handle down. The halogen light will illuminate, indicating that heating has started. To stop cooking, simply lift the handle back up. The light will turn off, and the heating element will cease operation.
Video: A user demonstrates cooking green beans and chicken nuggets simultaneously using the two-tier rack system, highlighting the transparent glass bowl for easy food monitoring.
3.4 Multi-level Cooking
The air fryer's design allows for cooking multiple items simultaneously using the high and low racks. This is ideal for preparing a complete meal, such as meat on the lower rack and vegetables or potatoes on the upper rack. Adjust cooking times as necessary, and consider flipping items for even crisping.
Video: A user prepares mozzarella sticks in the air fryer, showcasing the crisping capability and the ease of use with its simple two-knob control.
4. Maintenance
4.1 Cleaning Instructions
For optimal performance and hygiene, clean the air fryer after each use. The glass bowl, mesh basket, cooking racks, extender ring, and tongs are dishwasher-safe or can be washed by hand with warm, soapy water. The main lid unit should be wiped clean with a damp cloth. Never immerse the lid unit in water.
Some models may feature a self-cleaning mode: add a small amount of water and detergent to the glass bowl, set the temperature to 250°F, and run for 10-15 minutes. This helps loosen food residue for easier cleaning.
5. Specifications
| Feature | Detail |
|---|---|
| Capacity | 16 Quarts |
| Power | 1300 Watts |
| Temperature Range | 180°F - 480°F |
| Heating Element | Halogen Light |
| Cooking Method | 360° Air Convection |
| Main Bowl Material | Glass |
| Accessories Material | Stainless Steel |