A professional who tests brine in olive barrels, maintains salinity of specified level, and inspects olives for evidence of spoilage. Respnsibilities include:

• Knocks bung from barrel, using mallet.
• Siphons sample of solution from cask and reads indicator level, using hydrometer, to measure solution salinity.
• Replaces solution or adds water or salt to maintain brine salinity at specified level.
• Feels, smells, and visually examines olives to detect spoilage, wrinkling, and discoloration.
• Reseals barrel with bung, using mallet.
• May add vinegar or lactic acid to solution to retard spoilage.