Monument Vineyard : Grape Analysis

Total Red Colour (TRC) and Glycosyl-glucose (G-G) Analyses

TRC and G-G analyses are spectral methods of grape quality analysis that have been shown to correlate extremely well with resulting wine quality.

The results of analyses performed on grapes from the Monument Vineyard for the 2000 and 2003 vintages are presented below.

		2000			2003
Variety	Clone	Brix	TRC (mg/g)	G-G (μmol/g)	Brix	TRC (mg/g)	G-G (μmol/g)
Shiraz	ESA	21.8	1.6	4.6	24.5	-	4.7
	PT23	22.5	1.2	3.9	25.0	-	4.4
	PT10	22.0	1.2	4.2	-	-	-
Cabernet Sauvignon	125	20.9	1.4	4.3	23.9	1.39	3.5
Merlot	D3V14	21.7	2.0	5.3	-	-	-

G-G values above 4 for all red varieties indicate high levels of colour and flavour precursor wine components. Generally higher values indicate potentially higher quality wine.