For disinfection i was using 50/50 apple vinegar and water solution, steamed for 30 minutes after that distilled filtered water to remove vinegar smell.First attempt : From 1 kg of herbs ( Added to gauze bag ) and 13 liters of water got about 8 liters of hydrosol ( foreheads, heads, tails removed ). Stainless steamer grid was submerged about 1 cm, but you can add water below steamer grid. When steam appear from outlet tube, disconnect heating source. For better results buy separate silicone hose for impurities discharge valve, and for water cooling if needed. Cons : 1. Pot is shaking when water temperature rises to 100 degrees celsius, then it stops shaking ( i will buy separate silicone strap ). 2. Does not work with induction cooker.