![]() ![]() To keep them safe, a person should place them inside the refrigerator immediately after purchase. Even though the sell-by date may expire during that time, they may still be safe to eat. People can keep eggs in the refrigerator for 3–5 weeks. If a producer of USDA-graded eggs chooses to include an expiration date, it must be no more than 30 days after the pack date. For example, a pack date of 001 is January 1, and a pack date of 365 is December 31. However, producers must include the pack date on all cartons of USDA-graded eggs.Ī pack date is a three-digit number representing the day of the year when the producer washed, graded, and packed the eggs. If an egg producer chooses to include an expiration date, it must be in month/day format and follow an appropriate prefix, such as “Exp.,” “Sell by,” and “Not to be sold after the date at the end of the carton.” However, some states require this information. However, the information on the carton can sometimes be a little confusing.Īccording to the USDA, the United States federal government does not require producers to print the expiration or sell-by date on egg cartons. People who keep eggs in the original carton can also check for an expiration date to see whether they are still safe to eat. If any are cracked or leaking, choose a different pack. While this does not necessarily mean it is unsafe to eat, it can affect its taste and cooking properties.īefore purchasing them, a person should do a quick visual examination of the eggs in the carton. The green color is often due to overcooking or high iron content in the cooking water.Īn egg white or yolk that is runnier than usual can also indicate that an egg is past its prime. However, eggs that develop a green ring on the hard-cooked yolk after cooking are safe to eat, according to the USDA. They should discard eggs with any unusual discoloration inside, such as a pink, iridescent, or greenish egg white or yolk. If the shell is intact with no obvious signs of damage, contamination, or foul odor, a person should do a second visual check after cracking the egg open. People should discard eggs with any of the following characteristics:Įggs with cracked or slimy shells may have become contaminated with bacteria, while a powdery substance on the shell can be a sign of mold. A person should check for signs of possible contamination or rottenness. See: Mystery Snail Egg Development Photo Gallery Page.Sometimes an egg will look or feel off. It takes anywhere from 10 days to 4 weeks for an egg clutch to hatch based on temperature and other conditions. You cane see the color changes in the Mystery Snail Egg Development page link below. About 3 days before hatching, a fertile clutch will start to change color to look moldy prior to hatch. It would still be necessary to wait a week to 10 days to be able to tell this as egg development is unclear until that much time has passed. The one on the right is very fertile and it will likely hatch In the next day or two. You can see in the photo above that the left clutch has stained the paper towel pink underneath it. If the clutches are sitting on a damp paper towel, do you see a red/pink stain under one? Only infertile clutches will stain the paper towel. Infertile or bad clutches have a distinctive smell while healthy/fertile clutches do not. See how the egg cells are small and not very bubble like? Two other tips on detection: 1) smell a clutch that you suspect is bad if it’s been at least two weeks. The one on the left is “bad” or mostly if not completely infertile. These two clutches were laid within 2 days of each other. People often ask if their egg clutches are fertile so here is an example of an infertile clutch (left) next to a fertile clutch (right). ![]()
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