If you want to store just the whipped ricotta, place it in an airtight container and store it in the fridge for 1-2 days. If you've already added the herb topping to the dip, store it in an airtight container and cover the top of the dip with plastic wrap, and place it in the fridge for no longer than 1 day. Please note that the herbs have a higher chance of spoiling once they've been added to the dip and then stored.