Eight Essentials for Winter Tonic Soups
Whether in Chinese or Western cuisine, whether enjoying elaborate feasts or simple home-cooked meals, soup is always a staple on the table. Loving, enjoying, and savoring soup has become fashionable—“no meal is complete without soup.” People prioritize food, and the essence of food lies in nutrition. Winter is precisely the ideal time for tonifying. After a tiring day at work, returning home to drink a fragrant, nutritious bowl of soup feels truly refreshing. However, to truly achieve health benefits such as strengthening the body, preventing disease, and enhancing well-being, one must follow scientific principles in both preparing and consuming soup—adhering to the “Eight Essentials.”
· Choose ingredients wisely: Proper ingredient selection is key to making delicious broth. Ingredients typically include animal-based items like chicken, duck, poultry bones, lean pork, pork hocks, pork bones, ham, bantam ducks, fish, etc., but they must be flavorful, low in off-odors, and free of blood impurities. These foods contain abundant proteins, succinic acid, amino acids, nucleotides, and other nitrogenous extracts (such as myofibrillar protein, creatine, creatinine, urea, and non-protein nitrogenous substances) soluble in water. These compounds are the primary source of soup’s savory taste.
· Use fresh ingredients: Freshness does not mean the old adage “meat eaten freshly slaughtered, fish eaten while still jumping.” Modern freshness refers to fish or poultry killed 3–5 hours prior—during this period, enzymes break down proteins and fats into easily absorbable amino acids and fatty acids, maximizing nutritional value and optimal flavor.
· Select appropriate cookware: For making flavorful broths, aged clay pots yield the best results. Clay pots are made from materials like quartz, feldspar, and clay, fired at high temperatures. They possess excellent breathability, adsorption capacity, uniform heat conduction, and slow heat dissipation. When stewing broth, clay pots evenly and persistently transfer external heat to the ingredients, creating a stable temperature environment that enhances water-food interaction. The longer this interaction lasts, the more flavorful compounds seep out, resulting in a richer, more aromatic broth and softer, more tender ingredients.
· Control heat properly: The secret to stewing soup is to bring it to a boil over high heat, then simmer gently. This allows maximum release of protein extracts and other savory components, achieving a rich, mellow flavor. Only gentle simmering enables greater dissolution of these substances, yielding a clear yet rich broth.
· Use water appropriately: Water acts as both solvent for savory ingredients and medium for heat transfer. Water temperature and quantity directly affect the soup’s flavor. Generally, water volume should be about three times the weight of the main ingredients. Always start with cold water and let the ingredients heat gradually—never use boiling water directly or add cold water mid-process—to allow nutrients to slowly release, ultimately achieving a clear, clean broth.
· Combine ingredients suitably: Many food pairings have established patterns that create synergistic nutritional benefits—known as “golden combinations” on the dining table. For example, kelp stewed with pork creates an “interactive effect,” a dietary pattern found in Japan’s longevity regions (Okinawa). To ensure pure flavor, avoid using too many types of animal ingredients together.
· Cook with precision: Pay attention to the order of adding seasonings. Avoid adding salt early, as salt causes osmosis, drawing moisture out of ingredients and causing protein coagulation, reducing flavor. Generally, temperatures between 60°C and 80°C can damage some vitamins, while stewing maintains temperatures around 85°C–100°C for extended periods. Therefore, if adding vegetables to soup, add them just before serving to minimize vitamin C loss. Adding moderate amounts of monosodium glutamate, sesame oil, pepper, ginger, scallions, garlic, etc., adds unique character, but avoid excess to preserve the soup’s original taste.
· Drink soup at the right time: As the saying goes, “Drink soup before meals, stay slim and healthy; drink after meals, gain weight.” There is scientific basis behind this. Drinking soup before eating lubricates the upper digestive tract, aiding smooth swallowing. Sipping soup during meals helps dilute and mix food, promoting digestion and absorption. Also, drinking soup beforehand partially fills the stomach, reducing intake of main dishes and preventing excessive calorie consumption. Conversely, drinking soup after meals leads to nutrient overload and potential obesity.
Notably, do not assume that the “rich broth” from fish or chicken is the most nutritious. Experiments show that even after prolonged stewing, nutrients remain trapped in the “meat residue.” Drinking only the broth while discarding the meat is unscientific.