• Free & Total SO2
• pH & TA
• Specific Gravity
• Alcohol
• Turbidity (NTU)
• Acetic Acid
• Glucose : Fructose
• L-Malic Acid
• YAN
• Heat/ Cold Stability
• Bentonite Trial
• Grape Maturity (Baume, pH & TA)*
• Filterability

*Grape Maturity Samples: Must be booked the business day prior. Not available outside of vintage.

• Request Form: An External Analysis Request Form must accompany all samples.
• Payment: Cash or EFTPOS on the day, unless a credit account is approved.
• *Grape Maturity Samples: Must be booked the business day prior. Not available outside of vintage.
• Bottle Collection: Available 1 week after analysis from front office. For early collection, notify the lab when delivering samples.

• Preferred Testing Days: Tuesday – Thursday. Other days by prior arrangement.
- General Samples: By 11:00 AM
- Heat Stability: By 9:00 AM
- Grape Maturity: By 1:00 PM (with prior notice)

Jack Estate Front Office
15025 Riddoch Highway, PO Box 322 Coonawarra SA 5263
Phone: (08) 8736 3130