Oxidized Copper Door is the fully weathered, deep-green final stage of Minecraft's copper door line, reached only after a placed Copper Door slowly oxidizes over time through random ticks. Oxidized Copper Door is not craftable at a crafting table or stonecutter, because the oxidized variants were removed from the recipe table in Minecraft 1.21. A pickaxe is the proper tool for Oxidized Copper Door, which carries a hardness of 3 and a blast resistance of 6, does not burn in lava, and stacks to 64. Oxidized Copper Door is renewable, since copper itself is renewable and oxidation is a natural aging process rather than a finite resource. Like every copper door, Oxidized Copper Door stands two blocks tall on the floor, swings open and closed, and responds to a redstone signal from a button, lever, or pressure plate without conducting power like a solid block. Oxidized Copper Door was introduced in Minecraft Java Edition 1.20.3 and Bedrock Edition 1.20.50. An axe reverses one oxidation stage back toward weathered, a honeycomb locks the deep-green patina in place as wax, and a lightning strike can also strip oxidation back toward fresh copper. Builders prize Oxidized Copper Door for weathered lighthouse tops, verdigris temple gates, and aged steampunk facades that need a stable, non-flammable entry.