Vertical Barbecue Cooking With Sand Drawers to Prevent Smoke Taint

The patent introduces sand as an intermediary substance placed in drawers between the food and the heat source. The sand absorbs cooking residues and prevents direct contact between flames/embers and food, eliminating harmful burning and smoking while maintaining efficient heat transfer through radiation and conduction.

The cooking chamber is segmented into distinct zones: an upper cooking area for food placement, a middle zone with sand-filled drawers for residue absorption, and a lower zone for flame/ember placement. This segmentation allows simultaneous achievement of efficient cooking and harmful substance prevention.

Sand serves as a mediator that enables rapid cooking through thermal radiation and conduction while preventing the generation of harmful substances. The sand absorbs cooking residues and maintains a controlled thermal environment that avoids burning and smoking.

The patent changes the thermal interaction parameters by replacing direct flame-contact cooking with indirect heating through sand. This maintains high cooking speed through efficient heat transfer while altering the cooking mechanism to prevent harmful substance generation.

The patent uses sand, a cheap and readily available material, as the absorbent medium in the drawers. The sand can be easily replaced or cleaned, providing an economical solution for residue absorption that does not significantly increase device complexity.

The sand-filled drawers automatically absorb cooking residues through their inherent absorptive properties, requiring no additional active mechanisms or complex control systems. This passive self-service approach maintains simplicity while effectively managing harmful residues.