Yes! Pesto rosso freezes wonderfully! The easiest way to freeze pesto is to use a plastic ice cube tray. Place a tablespoon or two in each ice cube section and freeze. Once the pesto is frozen, take the pesto out of the ice cube tray and place them in an airtight container or a gallon sized Ziploc bag. Pesto will keep in the freezer for up to 3 months. When you are ready to use a cube, place it in a bowl and allow it to defrost.