Cleaning is what determines how long a torso lasts. The Hidden Desires Bangers manual is the most specific instruction among the products we’ve gone through, and it provides a good basic routine:
1. Rinse the channels with warm—never hot—soapy water directly after use, and keep rinsing until no soap residue remains. If the torso has two separate channels, rinse both.
2. Dry the channels completely on the inside with a clean, dry cloth. Moisture that remains in a blind channel does not dry out on its own.
3. Clean the outside with a mild shower foam or soapy water and dry it with a soft, light-colored towel. Dark textiles can bleed onto light TPE, and such discoloration can’t be washed off.
4. Dust the channels and surface with a maintenance powder if the manufacturer recommends it, as Hidden Desire does. The powder helps prevent the surface from becoming sticky.
Always follow the manufacturer’s instructions when they differ. Pipedream Fuck Me Silly #2 has a foam core that permanently shrinks if it gets wet: it must never be submerged, and water may only be flushed in and out through the front openings—never through the opening on the back. An inflatable doll like Kiki is, according to the manufacturer, to be washed before and after each use, and it’s easiest to dry when it’s still inflated.
Never boil a torso and never put it in the dishwasher: the material softens from heat, and a heavy casting can deform. If the product has vibration, remove it or keep the electronics dry according to its ingress protection rating. More advice per material is in How to clean sex toys.