There are no preservatives in Classico® pasta sauces. The recommended fridge life for Classico® tomato pasta sauce varieties is five days after opening, as long as it is closed properly. For Classico® cream-based Alfredo and Rosée pasta sauces, we recommend a maximum of three days. For Classico® pesto sauces, the recommended fridge life is from four to six weeks, if properly sealed. If you detect changes in colour, consistency, or odour, do not use the product.