If you have bought pesto that was refrigerated and if you keep it in the fridge, it will be fresh 3-4 weeks. Can You Freeze Pesto? Simply make the recipe as instructed, then seal the pesto in an airtight container or freezer bag. Yes! Microbial growth was inhibited by the CO 2 levels, but was not accompanied by significant changes in odour and colour. Fresh green pesto is highly appreciated by consumers because of its characteristic colour, taste and texture, and in terms of overall preference. 18 months frozen 10 days after thawing. Comment Report abuse. Helpful. Product Information; Nutritional Information; Request a Sample; Product Information; Our Basil Pesto is ready to use “straight up” tossed with fettucine or other noodles to make a classic pasta al pesto. The shelf life of fresh pesto sauce packed using MAP and kept refrigerated at 4 °C can be extended from 20 up to 40 days (Caserio et al., 2006). Once they turn from green to brown, it is all over for the pesto. Reviewed in the United States on June 13, 2020. It is recommended to use pesto three to four days after opening. But that’s just the beginning. 5.0 out of 5 stars great basil pesto. Homemade basil pesto sauce freezes incredibly well. Join the discussion today. Read the Prepared Pesto Shelf Life discussion from the Chowhound Home Cooking food community. MarjW. Alternately, spoon the homemade pesto into ice cube trays and freeze until solid. I believe that the best indicator of freshness is the colour of the leaves. If you use the olive oil method shared above, the shelf life will be extended. Read more. It had like four months and some weeks left from the day I received it. A useful extension of pesto shelf‐life, up to 120 days, was achieved by adopting a target atmosphere containing, at steady‐state, 10% CO 2 and 90% N 2 at 5 °C. Shelf Life. To boost the 'shelf-life' of the pesto in the fridge, make sure that it is completely covered with olive oil before sealing the container. 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