Production 
The grapes are left until late in the season to achieve optimum ripeness, ensuring maximum fruit flavour and a high degree of natural sweetness. Selected parcels of the finished wine are then added to the Rutherglen Topaque solera which is a blend of a number of vintages from many past years. Wine can only be withdrawn from this solera when it matches exactly with the previous withdrawal thus ensuring the quality and consistency of style. 
The vines for the Rutherglen Topaque are planted on deep alluvial red loam soils which retain moisture allowing the fruit to ripen gradually on the vine. The age of the vines vary from young, 10, 20, 40 or even 80 year old vines. We may pick one block of vines early, or manage the yields of another through the use of selective pruneing. A balance is required between, yield, canopy and subsequent quality. The decision to pick is based on the suitablility for the various classificatons and with one eye on the weather.