Epoxy resins are low molecular weight pre-polymers or higher molecular weight polymers which normally contain at least two epoxide groups. The epoxide group is also sometimes referred to as a glycidyl or oxirane group.
Different grape varieties thrive in different climates, but typically do best in U.S. Department of Agriculture plant hardiness zones 5 through 9. Although highly perishable, when stored correctly, grapes can last up to six weeks after harvesting.
Using the date as a reference point, acidic foods like tomatoes, grapefruit and pineapples can last from 12 to 18 months, while less acidic foods like meat and vegetables last anywhere from two to five years, the agency says. Three to five weeks: Eggs. Some states do require sell-by or expiration dates on egg cartons by law, but they're not federally required. If you see a date, you'll definitely want to buy the eggs before they expire, but you can actually store them in your fridge for three to five weeks.