Select your substitute based on cooking or baking needs: foil for cooking, silicone mat for baking, greased tray or spray for both, wax paper for cold prep, banana leaves for steaming, or glass/ceramic dish for direct baking.

Prepare the substitute as required: oil or grease foil, lay silicone mat flat, apply thorough grease to trays, keep wax paper only for cold tasks, soften banana leaves before use, spray even coat, or grease glass dish if sticky food.

Adjust usage ratio according to the substitute: use 1:1 with parchment amount plus grease for foil, 1:1 for silicone mat and wax paper (cold only), thorough coat for greased tray, even coat for spray, direct use for glass/ceramic, and 1:1 for banana leaves.

Check for special considerations: avoid foil for delicate pastries or sticky glazes, skip silicone mats if crisp bottoms are needed, never heat wax paper, note banana leaves add aroma and work only for moist-heat cooking, and lower glass dish oven temperature by 25°F.

Monitor food during cooking for best results, adjusting cooking times slightly if needed, especially with silicone mats and glass dishes to prevent overbrowning or undercooking.