Uncooked ravioli will keep for up to one day refrigerated, between parchment in an airtight container or two days if par cooked. You can also par cook them and freeze in an airtight container between parchment pieces. We par cooked our remaining raviolis and had the following night and they came delicious. Just toss back into a boiling stockpot of water and cook for another 2 – 3 minutes. The sauce is actually even better the following day!