Task: Text Simplification
Input (English): best before is usually advisory and refers to the quality of the product , in contrast with use by and best by which indicate that the product is no longer safe to consume after the specified date.
Output (English): ' best beofore ' is usually advisory and used to bring attention to the quality of the product , in contrast with ' use by and best by ' which show that the product is no more safe to use after the specified date.