Cascade dishwasher detergent typically has a shelf life of about one to two years from the date of manufacture. The exact shelf life may vary depending on the specific formulation and packaging of the detergent.
To ensure the best performance and effectiveness, it's generally recommended to use dishwasher detergent within a reasonable timeframe and avoid using expired products. If you have a specific Cascade dishwasher detergent product, I would recommend checking the packaging or contacting the manufacturer directly for the most accurate and up-to-date information regarding its shelf life.