Used once over a direct flame. For those who understand, I will sell it. Captain Stag Coffee Pot Percolator 12 cups, Suitable Capacity 1.8L, Made of 18-8 Stainless Steel UW-3531 Silver Product size: (approx.) Width 186 x Depth 163 x Height 202mm Product weight: (approx.) 842g Full capacity: (approx.) 2.4L, Suitable capacity: (approx.) 1.8L (for about 12 cups of coffee) Material: Body/Stainless steel (18% chromium, 8% nickel) (bottom thickness 0.7mm), Other materials/Knob = Glass, Strainer (body, stand, lid) = Stainless steel Country of origin: China, Note: This product cannot be used with an electromagnetic cooker (IH cooker).