Can an expiry date be calculated? For example the expiry date of fresh dairy products in the Philippines is 4 days. Note that it doesn't not mean fresh milk gets bad in 4 days in the refrigerator, it can stand 10 days or more, but because with an expiry date of 10 days the local market would be infested with low cost fresh milk coming by ships from China, Vietnam, Korea, Australia, or Europe. This would destroy the flourishing local dairy companies that sell milk over price.
My questions -
It is true that adding a pinch of salt once you open a carton of milk helps to keep the milk fresher? If so, why not put it in a label?
Is it true that you can keep cheese longer by putting it in a ziploc bag with a paper towel that has been soaked in white vinegar? If so, why not put it in a label?
Do you think there's an aspect of marketing, politics etc in expiry date, not just a matter of science?
Can we accurately calculate/predict the expiry date independent on government mandate?
Edited by mind over matter, 03 December 2011 - 10:18 AM.