What should I do before using the NJ600 for the first time?

Remove all packaging material and labels from the appliance. Wash the lid, pitcher, and Stacked Blade Assembly in warm, soapy water with a soft cloth, handling the Stacked Blade Assembly carefully as the blades are very sharp. Rinse and dry thoroughly before first use.

From the official Ninja NJ600 Professional Blender manual, page 4

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