Moss Wood Ribbon Vale 2021 Cabernet Sauvignon

Vintage notes

Regular readers of the Moss Wood newsletter will know our best method for assessing the potential quality of our new releases is to look back at similar years from the past.  It’s also true that history never repeats but it does rhyme and we see this with different vintages.  While the seasons may share similarities, they are never exactly the same.  This is very much in our minds as we look back at the 2020-21 growing season.

The calendar year 2020 was very kind to us.  The rainfall of 929mm, being 9% below average meant it was slightly dry but still plenty for growing grapes.  During the spring, conditions were benign.  The vines flowered from 5^th November to 7^th December and we had 10 days of rain, delivering 77mm.  There were some reasonable showers but no heavy winds or hail and the temperatures were mild as well.  There were only 6 days when it dropped below 8°C, with coolest minimum being 5.7°C, which occurred on 3^rd December and by which time flowering was all but finished.

It almost goes without saying that yields were good.  Cabernet Sauvignon, Cabernet Franc and Merlot were all above average, with the latter the best performer at 10%.  All varieties had close to average bunch numbers but the quality of the spring conditions shows in the bunch weights, all at least 10% above average.

The season remained largely uneventful until the beginning of February when Mother Nature decided it was time to have a bit of fun with us.  Over the next 8 weeks she delivered 215mm of rain, as the remnants of various tropical lows came down the coast of WA.

These events are not uncommon and during Keith’s 45 vintages at Moss Wood, we experienced similar conditions in 1980, 1982, 1985, 1989, 1990, 1992, 1998, 2000, 2015 and 2017.  Anyone familiar with our wines will note these vintages are all quite different because the timing and amounts have varied.  Contained in the above list are some of our very best wines, so it’s clear that rain isn’t necessarily a quality threat and so it was in 2021.

Ribbon Vale has been part of the Moss Wood family since the 2000 vintage, so this new release has 3 similar siblings and given the cool temperatures, is most like 2017.  For the record, this is the vintage that we think mirrors the great 1990, at Moss Wood.  However, a notable difference, and improvement since 2017, has been the significant increase in the crop from the new block of the Houghton clone Cabernet Sauvignon, as well as the availability of some Malbec for blending.  On the point of the clonal mix, the Houghton clone now provides 76% the blend and takes Ribbon Vale much more into the Moss Wood realm, which is 100%.  In our view, this tips the quality balance in favour of 2021.

We don’t live in fear of the rain with Cabernet Sauvignon and its blending varieties because they’re natives of the maritime climate of Bordeaux and have been selected for their good performance in sometimes damp conditions.  They all have thick skins which resist splitting and so if a vineyard is carefully managed and remains disease free, the fruit won’t be adversely affected by rot.  In addition, unless the rain is accompanied by very cold conditions, they will all achieve full sugar and flavour ripeness.

The 2021 was one of our coolest seasons on record and we still managed to get full ripeness in Cabernet Sauvignon, despite having to play a game of dodge the showers at the end.  As each variety approached maturity, we kept an eye on the weather and jumped in to pick before or after the rain.  The length of the season shows how patient we had to be.  All the varieties needed slightly more than 140 days to get from flowering to harvest, roughly 3 weeks longer than average.  We started with Malbec on 6^th April and then picked Merlot, Cabernet Sauvignon and Cabernet Franc on 13^th, 14^th and 17^th April, respectively. The important thing to note is that even though temperatures were mild, the length of season meant all varieties kept making progress and both the Cabernet Sauvignon and the Merlot have ripe, soft tannins.

To start the winemaking discussion, we point out that Moss Wood remains a completely hand-run vineyard.  All vineyard operations are done by people – cane pruning, shoot positioning and then harvesting.  This is something that is very rare in the Australian wine industry because the associated costs are so high.  However, what is important is the quality outcomes and our aim, every year, is to deliver the best possible wine the vintage allows us.  Modern viticultural and winemaking machinery is very efficient and does a reasonable quality job.  However, so far, at least, hand management delivers the best finished wines.