It is common to use a paper clip to try and scrape out any coffee grounds stuck in the needle. You can also use the Keurig-provided maintenance tool. Here is how. Step 1: Lift the Keurig lid. Step 2: Fill the provided maintenance K-pod with water. Step 3: Place the maintenance pod in the K-pod holder and gently close the machine. Step 4: Lift and close the lid five more times, then let it sit for a minute. Step 5: Open the lid once more. You should notice loose coffee grounds in the pod. The needle should not be free of any obstructions. Be sure to run two brewing cycles with water after. This will clean up any debris the cleaning tool may have missed.