As far as the expiration date of the fresh products (milk, yogurt and salad in a bag), it must be r

He talks about the Roberto Pira on The Food Done. "It 's true that with the passage of time in the packaged food trigger chemical changes and microbial able to change the nutritional and organoleptic characteristics, but these changes are unlikely to turn into a health hazard."
As far as the expiration date of the fresh products (milk, yogurt and salad in a bag), it must be respected, but with some flexibility. "The validity date is related to - explains the Pira - to respect the cold chain. If the route from the factory to supermarket products remain for 4-5 hours at 30 C, the expiry date indicated on the package, although there reassuring because it is distant in time, it really is no longer valid. " For this reason, during the warm months it is better to anticipate than 24 hours the consumption of the most delicate foods. Often the leaves of the salad after a long pause at room temperature sag losing fragrance and flavor. Even the cheese is sour before the deadline, if you break the cold chain. monte mobile Conversely, fresh milk if stored well, you keep one or two days later than the date and until it changes flavor you can drink. Yogurt expired for 7-10 days you can eat, in the absence of swelling or mold (the only drawback is that the live cultures are largely lost.) Even for the eggs can gloss of a few days without problems. The noodles or ravioli packed fresh you can put in the pot after one week of the deadline, if there are no suspicious smells. The food in the pantry (pasta, rice, sauce, jam, mayonnaise, pickles ...) and have frozen on the label the date of minimum durability, which varies from 3-6 months to 2 years and beyond. This interval indicates the range in which they are guaranteed the nutritional and organoleptic characteristics at 100%. In the period following the date all the products are still edible, but you start to record a slow decay of sensory and nutritional quality. Obviously we are talking about packaged products stored properly.
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