15 Facts About Hard-Boiled Egg

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Have you ever wondered about the humble hard-boiled egg? Get ready for a delightful journey into the world of this classic kitchen staple. From their history in cuisine to unexpected benefits, join us as we uncover 15 fascinating facts about hard-boiled eggs. These facts will surprise you and make you appreciate this simple yet versatile treat.

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Ancient Origin

Hard-boiled eggs are known to have originated in Ancient Rome during 5,000 B.C. Back then, boiled eggs were served as an appetizer amongst wealthy people. Besides Romans, Egyptians and Chinese were the first to boil eggs and discover their texture and flavor. Eggs have also been featured in various traditional dishes and ceremonies.

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Protein Powerhouse

Hard-boiled eggs are a protein powerhouse and boast a rich nutritional profile. A medium-sized egg contains 6 to 8 grams of protein. It is equivalent to 14% of the daily requirement for women and 45% of the daily protein requirement for toddlers. In fact, our body can easily absorb and digest the protein in hard-boiled eggs.

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Boiling Facts

Perfectly boiling an egg requires precision, given what boiling stage you want to achieve: Soft, Medium, or Hard. For hard-boiled, it takes nearly 9-12 minutes in low to shimmer heat. The temperature must reach 174°F at the center of the yolk for that perfect firm texture. Experiment to find the perfect timing.

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Nutritional Powerhouse

Besides being a rich source of protein, eggs boost a diverse nutritional profile. Hard-boiled eggs are a good source of vitamins such as B2 (riboflavin), B12, and D. They are also rich in choline, healthy fats, and antioxidants like lutein and zeaxanthin. Consuming them regularly can promote energy, bone health, and overall health.

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Promotes Healthy Heart

Hard-boiled eggs are beneficial for heart health. Being a good source of healthy unsaturated fats like omega-3 fatty acids, they offer heart health benefits. Consuming them regularly as a part of a well-balanced diet can help increase HDL, which is known as good cholesterol. However, people with heart health concerns must consult their doctor before including eggs in their diet.

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Improves Eye and Brain Health

Hard-boiled eggs, particularly their yolk, contain nutrients like lutein and zeaxanthin that support eye health. Consuming them regularly can reduce the risk of age-related vision problems. Besides that, eggs are rich in choline, a vital nutrient that improves brain development and function. Since the human body produces choline in very small amounts, consuming eggs can be a great idea.

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Easter Tradition

Did you know? Decorating hard-boiled eggs is a part of the easter tradition. Also, as per beliefs, the hard shell of an egg is a symbol of the sealed tomb of Christ, and opening it represents his return to life. Besides that, eggs represent new life and rebirth; therefore, they have been a part of easter celebrations since ancient times.

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Cholesterol Myth

Eggs are naturally high in cholesterol, so people often consider them bad for health. However, despite being naturally high in cholesterol, eggs do not raise cholesterol levels like other foods. In fact, the cholesterol content is limited to the yolk, and if you are eating the white part, rest assured about your cholesterol levels.

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Symbol of Fertility

Hard-boiled eggs, or eggs in general, are a symbol of fertility and rebirth in many cultures. Among Egyptians, Persians, and Greeks, eggs were commonly exchanged during springtime festivals, particularly during the vernal equinox celebration. Similarly, in Hinduism, eggs are one of the first elements in the origin of the universe.

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High Shelf-Life

Although the fact may surprise you, you can keep hard-boiled eggs in the refrigerator for up to 7 days. As per the recommendation by USDA, it is crucial to refrigerate eggs within two hours of cooking. For peeled eggs, store them in an airtight container submerged in cold water. Store unpeeled eggs in an airtight container with a moist cloth.

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Reduced Salmonella Risk

Due to high-boiling temperatures, hard-boiled eggs are at lower risk of Salmonella contamination than low or medium-boiled eggs. Salmonella is a group of bacteria; to kill them, boiling at least 160°F is necessary. Therefore, it is often advised to avoid buying slightly cracked eggs. Or, even avoid eggs with dirt on their surface.

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Niacin Content

Hard-boiled eggs are a good source of Niacin, a vitamin that improves and maintains skin health. In fact, it also supports the nervous and digestive system. Niacin also plays a crucial role in converting food into energy. Therefore, eggs are considered a quick source of energy. Since niacin is very heat stable, it is not lost during high-heat cooking.

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Egg Salad Variations

Hard-boiled eggs are used across different culinary cultures to prepare various salads. It is a part of traditional American egg salad, the Japanese tamago salad, and the French egg mimosa. Besides that, Britishers enjoy hard-boiled eggs as a part of their classic cress sandwich. Russians incorporate them in their Olivier salad, along with potatoes, pickles, and mayonnaise.

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Balancing Raw Eggs Vs. Hard-Boiled Eggs

Due to their liquid content, balancing raw eggs on a flat surface is a challenge. Balancing can be tricky as the egg white and yolk shift inside, particularly because it cannot find gravity. However, hard-boiled eggs are solidified during the boiling process, and thus, they are comparatively easier to balance.

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Eggs for Muscle Repair

The amino acids found in hard-boiled eggs help in muscle repair and growth after an intense exercise session. Therefore, gym enthusiasts, athletes, and individuals who play sports often include eggs in their meals. In fact, eggs contain all nine essential amino acids. They can be your portable snack to enjoy post-workout.


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