The Macallan Distillers Ltd recently launched a new line of Single Malt Whisky which they call, The Macallan 1824 Series. Each whisky in the 1824 Series is 100 % Sherry Cask whisky, and each whisky within the range draws its name from the colour of the whisky inside the bottle as the series moves up the ladder from Gold to Amber, Sienna, and finally to Ruby in that order.
These whiskies carry no age statement. Instead, the consumer is asked to draw a parallel between the colour of the whisky in the bottle and its age, complexity, and quality. Because these whiskies are naturally coloured by the casks from which they are drawn, the implication is that the richer darker whiskies have aged longer, and/or have had more of their blend drawn from the higher quality Sherry oak casks.
The Macallan Ruby is the darkest production whisky in the series. The Ruby is bottled at 43 % alcohol by volume, and all of this whisky was matured exclusively in European oak sherry casks.
Here is a link to my review of the #96 Spirit in my Rum Howler 2015 Top 100 Spirits Countdown:
#96 – The Macallan Ruby
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You may follow my Countdown list of the 100 Best Spirits here: The Rum Howler 2015 – Top 100 Spirits
This is a true Solera rum with 4 rows of aging barrels set one atop each other. As the rum ages, a portion of the rum moves through each row until it reaches the final solera row at the bottom years later. The barrels are not emptied fully and only a portion of the rum from the previous or higher row is moved to the lower row each time. According to the Santa Theresa website, a very small portion of the rum reaches an age approximating 25 years before bottling.
What’s really cool is that in June of 2013, 
According to the 
The Rum Howler Blog 