Sort controls by reliability

Sort each control by where it sits on the hierarchy. Eliminate or substitute Engineering control Instruction or process control User PPE or behavior Lower the heater set point so the outer wall stays below burn threshold Replace brittle plastic with a heat-rated polymer that does not crack in normal use Add a fixed guard over the pinch point Add an interlock that stops motion when the cover is open Revise the setup instructions to require two-person lifting Add an assembly video showing the safe hand position Tell users to wear heat-resistant gloves Tell users to keep fingers away during folding

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