Grill temperature swings widely above and below the setpoint during cooking.

Safety first: Allow the grill to cool before touching the temperature probe.

• Clean RTD probe: Gently scrub the RTD sensor with fine steel wool or a non-abrasive pad to remove soot and grease.
• Use consistent pellets: Stick to one brand and type of high-quality pellets to reduce variability.
• Shield from wind: Move the grill to a more sheltered location or use a windbreak.
• Preheat longer: Allow extra preheat time so the controller can stabilize before adding food.
• Controller calibration: If your Rösle controller allows, adjust temperature offset or stability settings per the manual.