How often must existing tare weights be reassessed for accuracy?

The correct choice states that existing tare weights must be reassessed for accuracy per product batch. This approach ensures that tare weights are precise and accurate for each specific batch of products. Its importance lies in the variability that can occur between batches due to factors such as changes in materials, processing conditions, or equipment used. Regular reassessment at this frequency helps to maintain quality control and compliance with industry standards, ensuring that products are weighed accurately before they are sold, which is essential for both legal and customer satisfaction purposes.

This method of reassessing tare weights recognizes that tare values can be batch-specific due to any fluctuations in weight or composition. By consistently checking tare weights for each batch, businesses can uphold integrity in their weighing processes and minimize potential financial discrepancies or regulatory issues.