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For centuries, freshly harvested eggs have served as the go-to ingredient for almost everything \u2014 from rustic family recipes to gourmet delicacies. Nowadays, most eggs sold contain far more mysteries than their outer shell suggests.<\/p>\n
You might be surprised by how complicated it is to figure out whether your carton is genuinely fresh or if those eggs have been sitting on a store shelf for several weeks. The United States Department of Agriculture (USDA) permits eggs to be sold up to 30 days after they\u2019ve been packaged, which means you could easily end up buying older eggs that affect taste and safety.1<\/span><\/sup> You’ll find the relevant codes printed on the top or side of the egg carton.<\/p>\n According to an article published by The Hearty Soul,2<\/span><\/sup> egg cartons are more than just containers protecting eggs during transportation. In fact, they hold a wealth of overlooked information. For example, here\u2019s a single detail that many consumers overlook \u2014 the day of the year those particular eggs were packaged, sometimes called the \u201cJulian date.\u201d When you find it, don\u2019t be bewildered by the numbers. Here\u2019s what it means:<\/p>\n \u201cYou can find this code on the side of the egg carton, near the sell-by date. It looks like a three-digit serial number but it\u2019s actually a date. If you are unfamiliar, Julian dates range from 001 to 365, counting every day of the year, one at a time. For example, 001 is January 1st and 365 is December 31.<\/em><\/p>\n<\/blockquote>\n This code refers to the day the eggs were washed, graded and loaded into their cartons. Eggs are freshest four to five weeks after being packaged so keep that in mind while shopping. Because the United States Department of Agriculture allows eggs to be sold for up to 30 days after their packaging, you may find cartons that are weeks old on store shelves.\u201d<\/em>3<\/span><\/sup><\/p>\n<\/blockquote>\n But there\u2019s more to egg cartons than just the Julian date. Another vital piece of information you need to watch out for is the \u201cplant code\u201d that starts with the letter P. This indicates the location where the eggs were packed. \u201cIf there\u2019s a recall, this code will inform you if your egg carton is affected,\u201d The Hearty Soul writes.4<\/span><\/sup><\/p>\n If you\u2019re already storing eggs at home for some time, try the \u201cfloat test\u201d to determine whether they\u2019re safe to use.5<\/span><\/sup> To do this, simply fill a glass or bowl with water and place the egg on the surface. If the egg stands upright or floats, it is older. However, this doesn\u2019t mean they\u2019re automatically inedible. In addition, crack the egg into a separate bowl and look for an odd smell or appearance before deciding to throw it out.<\/p>\n Another helpful tip is storing your eggs in a way that protects them from temperature changes. For instance, leaving eggs by the fridge door exposes them to frequent temperature shifts as you open and shut it throughout the day. To increase shelf life, keep them in the coldest part of the refrigerator, in their original carton.6<\/span><\/sup><\/p>\n The Hearty Soul also outlines the difference between the \u201csell-by\u201d date and the Julian date. The \u201csell-by\u201d is not a safety date, but indicates how long the product should be displayed on the shelf.7<\/span><\/sup> The Julian number indicates the exact day the eggs were washed, graded and placed into their carton. In short, the two dates aren\u2019t interchangeable, but will give you an indicator of the freshness of the eggs.8<\/span><\/sup><\/p>\n A report from the University of Nebraska-Lincoln\u2019s (UNL) Food and Nutrition9<\/span><\/sup> provides more information regarding information printed on egg cartons. One notable detail is that some states allow an \u201cexpiration\u201d or \u201csell-by\u201d date on the carton, while others either restrict or forbid these specific labels outright.10<\/span><\/sup><\/p>\n For instance, if you\u2019re in a state that mandates a pack date (or Julian date), you\u2019ll find the appropriate information on the cartons, but you might not see a \u201cSell-By\u201d date at all. In contrast, another state might allow the \u201csell-by\u201d format, which makes it easier for you to grasp a quick timeframe.<\/p>\n When you realize this discrepancy, it explains why certain egg cartons appear cluttered with multiple dates and codes, while others seem to display very few. That difference in labeling laws also means you need to pay more attention to proper storage instructions because the date on the carton may not always give you the full picture. To help minimizes the confusion, UNL offers the following advice:11<\/span><\/sup><\/p>\n \u201cAlways purchase eggs before the \u2018Sell-By\u2019 or \u2018EXP\u2019 date on the carton. After the eggs reach home, refrigerate the eggs in their original carton and place them in the coldest part of the refrigerator, not in the door. For best quality, use eggs within three to five weeks of the date you purchase them.<\/em><\/p>\n<\/blockquote>\n The ‘sell-by’ date will usually expire during that length of time, but the eggs are perfectly safe to use. Use of either a \u2018Sell-By\u2019 or \u2018Expiration\u2019 (EXP) date is not federally required, but may be state-required, as defined by the egg laws in the state where the eggs are marketed. Some state egg laws do not allow the use of a \u2018sell-by\u2019 date.\u201d<\/em><\/p>\n<\/blockquote>\n That being said, how long do fresh eggs actually last? According to Egg Safety Center, eggs are safe to eat four to five weeks after purchase, as long as it\u2019s refrigerated at 45 degrees Fahrenheit or lower.12<\/span><\/sup><\/p>\n Interestingly, companies are able to pay the USDA to grade the quality of their eggs, evaluating everything from the yolk\u2019s shape to the egg white\u2019s overall firmness. Once they\u2019ve passed inspection, companies are granted the right to use a special USDA logo on their cartons, meaning any carton displaying that mark has met the agency\u2019s standards. This is usually done to give consumers confidence that they\u2019re buying top-tier quality eggs.13<\/span><\/sup><\/p>\n Another important piece of information Egg Safety Center noted is the assorted special designations beyond the USDA\u2019s grading, such as UEP (United Egg Producers) Certified, cage-free and certified organic.14<\/span><\/sup> These labels consider farming practices and animal welfare standards or environmental concerns, which you\u2019ll find below.15<\/span><\/sup><\/p>\n I believe that the root cause of confusion around knowing what eggs to buy is the lack of clear knowledge about how they\u2019re produced, handled and labeled. You\u2019ll be tempted to buy a carton simply because it\u2019s on sale, but then realize those eggs came from CAFOs (concentrated animal feeding operations) and have been in transit or storage far longer than you suspected.<\/p>\n In my case, I am now raising six hens at home and finding satisfaction in knowing exactly what they\u2019re eating. If you\u2019re not able to raise your own backyard flock, here are five strategies to help you pick the best eggs possible:<\/p>\n 1. <\/span>Pick pastured eggs when possible \u2014<\/strong> Look first for organically raised, free-range pastured eggs. This means the chickens have a large space to roam and forage naturally rather than being fed pesticide-laced feed. Buy from trusted producers to ensure the chickens are less likely given grains high in omega-6 linoleic acid. This results in eggs with lower polyunsaturated fat (PUFA) content and improved nutritional quality.<\/p>\n You\u2019ll know eggs are pastured right away because they have better taste and texture compared to CAFO eggs. To find pastured eggs, visit your local farmers markets or health food stores. Even if you live in an urban area, you\u2019ll find small distributors bringing in cartons from farms outside city limits.<\/p>\n 2. <\/span>Check yolk color and quality \u2014<\/strong> If you crack open an egg and see a bright orange yolk, that\u2019s a strong indicator of a hen eating a natural diet. You gain more lutein and zeaxanthin from these deeper-colored yolks, which support eye health.<\/p>\n I like to enhance my nutrient absorption by adding some raw, grass fed butter or a little bit of coconut oil to my vegetables, since these fats help my body take in more of the fat-soluble nutrients in eggs. It\u2019s a small tweak that gives you a better nutritional payoff.<\/p>\nCracking the Egg Carton Code, Plus Useful Storage Tips<\/h2>\n
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Diving Deeper Into Egg Label Rules<\/h2>\n
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Additional Information About the Eggs You Buy<\/h2>\n
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\n \nCertification<\/th>\n Definition<\/th>\n<\/tr>\n<\/thead>\n \n UEP Certified and UEP Certified Cage-Free<\/strong><\/td>\n Egg cartons printed with these logos follow the UEPs standards that ensure optimal hen welfare, which were created by the Scientific Advisory Council. All UEP producers are audited annually.<\/td>\n<\/tr>\n \n American Humane Certified<\/strong><\/td>\n Egg cartons with this logo meets the standards set by the American Humane Society. This means that the hens laying the eggs were grown in a cage-free environment while following science-based welfare standards.<\/td>\n<\/tr>\n \n Certified Humane<\/strong><\/td>\n The Human Farm Animal Care hands out these certifications to farmers that provide hens with a free-range or pastured environments. Third-party auditors ensure that these standards are constantly met.<\/td>\n<\/tr>\n \n Grade<\/strong><\/td>\n The USDA Grade shield on a carton indicates that the eggs were audited for quality and weight under the supervision of a USDA grader.<\/td>\n<\/tr>\n \n Antibiotic-Free<\/strong><\/td>\n Eggs sold with this USDA certification mean that the hens were never treated with antibiotics.<\/td>\n<\/tr>\n \n USDA Organic<\/strong><\/td>\n This is the USDA\u2019s certification showing that eggs were grown following the agency\u2019s standards.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Practical Tips for Choosing and Using Quality Eggs<\/h2>\n