Bordeaux Fill Level Descriptions (Ullage):
BN - Base Neck or
above - Perfectly acceptable for any age wine. Outstanding for
any wine 10 years or older.
TS - Top Shoulder or Very Top Shoulder - Normal for
a quality wine approximately 15 years or older.
US - Upper Shoulder - Acceptable and common for
wines 20 years or older. Usually not a problem. Some risk.
MS - Mid Shoulder - More common in wines exceeding
30 to 40 years of age. Higher than normal risk.
LS - Low Shoulder - Very risky fill level. Wine is
typically undrinkable. Purchase only for historical or