Yes — CLR Calcium, Lime & Rust Remover is labeled by CLR as safe for use in dishwashers, including for removing hard-water/limescale buildup. CLR specifically instructs using ½ cup in an empty dishwasher, followed by a normal cycle and an extra rinse cycle.
However, there’s an important caveat for Bosch:
- Bosch recommends its own Bosch Dishwasher Descaler for limescale/hard-water deposits and says to use it every 3–6 months as needed.
- So while CLR says its product is dishwasher-safe, Bosch does not specifically endorse CLR. For maximum protection of your Bosch, I’d use the Bosch descaler, especially if the dishwasher is under warranty.
- If you do use CLR, follow CLR’s instructions exactly: empty dishwasher, remove the rinse aid, use ½ cup CLR, use no detergent or other chemicals, then run an additional rinse cycle.
If you give me your Bosch dishwasher model number (E-Nr.), I can check its specific manual and tell you whether CLR is appropriate for that model.
