"Old Brine" is the soul of Lu Wei and the core of Yizhenxiang's three-generation heritage. What is it, why does it get better with age, how is it maintained, and can you recreate it at home? This guide walks you through old brine from definition and recipe to upkeep and food safety, revealing the secret of a master stock aged over 30 years.
What is Old Brine? Definition and Origin
Old brine is a braising liquid used repeatedly over long periods, continuously enriched with spices and the essence of ingredients. It is not a sauce mixed once, but a stock that is "raised" — every braise leaves behind collagen from meat and bone and aromatics from spices, building a deep, rounded body over time. Like wine needs aging or a sourdough starter needs feeding, old brine needs time. Yizhenxiang's brine has been passed down for over 30 years — a living stock that breathes and grows.
Tips
- •Longer use means richer flavor
- •Reheated and tended daily
- •A shop's true family treasure
18 Traditional Herbs: the Aromatic Backbone
Yizhenxiang's brine uses 18 carefully selected herbs: star anise, cinnamon, Sichuan pepper, dried tangerine peel, licorice, cloves, tsaoko, angelica root, fennel, anise, bay leaf, galangal, sand ginger and more. They are not piled in at random but balanced by ratio — star anise and cinnamon lead the aroma and sweetness, Sichuan pepper adds a numbing layer, while licorice and tangerine peel harmonize the finish, keeping the whole brine rounded rather than harsh.
Tips
- •Star anise for aroma, cinnamon for sweetness
- •Pepper for numbing, licorice to harmonize
- •18 herbs is about ratio, not quantity
Why Does It Improve with Age?
During repeated braising, old brine absorbs the essence of ingredients — collagen from meat, calcium from bones, sweetness from aromatics and vegetables. These merge and mature with the 18 herbs into a complex flavor that fresh brine simply cannot copy. That is why, with the same recipe, a newly started pot and a decades-old brine taste worlds apart. Time is old brine's most important invisible spice.
Tips
- •Collagen enriches body and cling
- •Herbs blend further over time
- •Each batch adds to the essence
How Is Old Brine Raised and Maintained Daily?
Raising a great old brine takes discipline. Before and after each day, the brine is boiled to sterilize, skimmed of surface oil and sediment, then topped up with water, seasoning and some spices according to the day's volume to keep flavor and saltiness balanced. Spice bags are replaced regularly to avoid bitterness from over-boiling, and the brine is never left out overnight unattended. It is this daily routine that lets the brine last 30 years and grow richer.
Tips
- •Boil daily to sterilize, skim oil and debris
- •Top up water and seasoning to stay balanced
- •Replace spice bags regularly to prevent bitterness
Can You Recreate Old Brine at Home? FAQ
People often ask whether you can raise old brine at home. You can, but the bar is high. A home kitchen struggles with the daily boiling and the stable temperature and salinity control a shop maintains, so the brine easily sours if neglected. If you want to try, start with a small pot, always boil after each use and refrigerate, and reheat again within two to three days. For most people, rather than the hassle of raising brine, simply enjoying Yizhenxiang's 30-year-old brine is easier and safer.
Tips
- •At home, boil after each use and refrigerate
- •Neglect causes souring — keep volumes small
- •For authentic flavor, leave it to the experts
Summary
Yizhenxiang's old brine is the result of three generations of daily care. From the 18-herb recipe and the daily boiling and upkeep, to the depth built over 30 years, every bite of Lu Wei carries the flavor of time. That is why once you try Yizhenxiang, you never forget it — because what you taste is a brine that cannot be copied.