What preparation step is identified as the single most effective method for dislodging residues and potential worm eggs clinging to lettuce leaf surfaces?
Answer
Washing each leaf individually under a steady stream of running water.
Given the risk of bacterial contamination from sources like soil or irrigation water, careful preparation is critical when consuming raw lettuce. While several steps are required for full safety, the most effective mechanical action against surface contaminants is washing every single leaf separately. This process, involving a steady stream of running water over each leaf, is specifically highlighted as essential for physically dislodging various unwelcome elements, including pesticide traces and potential worm eggs that might adhere tightly to the leaf surfaces.
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