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Rejuvenated casks, yea or nay?
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bifter
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PostPosted: Tue Apr 08, 2014 4:01 pm    Post subject: Rejuvenated casks, yea or nay? Reply with quote

"rejuvenated", "recharred", "reconditioned", I'm seeing a lot of such terms being used to describe barrels and hoggies that have been pressed back into use when they might ordinarily have been considered to have reached the end of their useful lives (some may say 'clapped out').

The whisky industry is full of elusion and obfuscation, for all I know this practice could have been going on the whole time but I gather some new techniques were discovered in the last decade or so, so perhaps we are seeing the beginning of a flood of such casks. Talisker Storm, anCnoc Rutter and, launched today, Haig Club, are some of the expressions that I have noted lay claim to such cask treatment. I wonder why they do so as, while full disclosure is nice, they probably aren't obligated to tell us. The accepted wisdom is that, after a few fills, the casks lose the potential to mature the whisky, indeed much whisky is married in 'inactive' casks. So the idea of "reconditioned" casks sounds about as enticing as 'sloppy seconds' and, from my experiences so far, it certainly seems to lead to a more muted wood influence.

What are your thoughts on this trend?
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Alexppp
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PostPosted: Tue Apr 08, 2014 4:26 pm    Post subject: Reply with quote

Sorry for my ignorance, but how exactly does one 'rejuvenate' a cask?
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John
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PostPosted: Tue Apr 08, 2014 4:34 pm    Post subject: Reply with quote

Rejuvenating barrels has been practiced for many decades, barrels are expensive and therefore can often have a lifespan up to 50 years, this is not a new practice. I dont see any elusion and obfuscation, barrels have always been "rejuvenated" "recharred" and "reconditioned" and these are not new terms to describe the process which has always been common practice, it is simply part of the Scotch whisky industry and whisky making process.
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William
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PostPosted: Tue Apr 08, 2014 5:09 pm    Post subject: Reply with quote

Alexppp wrote:
Sorry for my ignorance, but how exactly does one 'rejuvenate' a cask?
Alex to counteract the falls in the number of first fill casks in the Scotch whisky cask population, which occurred in the 1980's, techniques were developed for cask rejuvenation.

Ex- bourbon casks were subjected to steaming and scraping. This created a new wood surface, which was charred with a gas flame for a controlled number of seconds.

Sherry casks were often given wine treatment using paxarette, a brown sweet sherry. A small amount (500 ml per hogshead) was put into a cask, which was then pressurised with steam for 10 minutes. The unabsorbed paxarette was then disgorged.

The above treatment has given way to a more comprehensive approach where Spanish butts are charred, steamed and de-charred to remove exhausted wood. The freshly exposed wood surface is then treated with sweet sherry for a period of a few months, before the cask goes back into service. This approach does not quite match the true sherry cask flavour.

Although there is no shortage of casks today, these techniques have continued in use as economic measures. Casks are re-used several times in the Scotch whisky industry. It is difficult to establish an average life for a cask but 40 to 50 years is a likely range; this might be six or seven fillings though that of course would depend on the maturation periods. Single malts usually come from first fill casks so malt and grain whiskies for blending will be the categories for the older casks.
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Alexppp
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PostPosted: Tue Apr 08, 2014 5:40 pm    Post subject: Reply with quote

Thanks William. I was aware that casks are reused but didn't really know about the methods involved in rejuvenated casks. A few months ago there was a great demonstration of the difference between first-fill and refill casks at a Glenfarclas tasting - the difference between a first fill cask and a fifth fill cask of a similar age whisky was startling.
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bifter
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PostPosted: Tue Apr 08, 2014 5:49 pm    Post subject: Reply with quote

William wrote:
Alexppp wrote:
Sorry for my ignorance, but how exactly does one 'rejuvenate' a cask?
Alex to counteract the falls in the number of first fill casks in the Scotch whisky cask population, which occurred in the 1980's, techniques were developed for cask rejuvenation.

Ex- bourbon casks were subjected to steaming and scraping. This created a new wood surface, which was charred with a gas flame for a controlled number of seconds.

Sherry casks were often given wine treatment using paxarette, a brown sweet sherry. A small amount (500 ml per hogshead) was put into a cask, which was then pressurised with steam for 10 minutes. The unabsorbed paxarette was then disgorged.

The above treatment has given way to a more comprehensive approach where Spanish butts are charred, steamed and de-charred to remove exhausted wood. The freshly exposed wood surface is then treated with sweet sherry for a period of a few months, before the cask goes back into service. This approach does not quite match the true sherry cask flavour.

Although there is no shortage of casks today, these techniques have continued in use as economic measures. Casks are re-used several times in the Scotch whisky industry. It is difficult to establish an average life for a cask but 40 to 50 years is a likely range; this might be six or seven fillings though that of course would depend on the maturation periods. Single malts usually come from first fill casks so malt and grain whiskies for blending will be the categories for the older casks.

Thanks William, great knowledge. I did think this was a relatively new phenomenon. The inference from the marketing then might be that the producers are admitting that they are using rejuvenated casks in their premium releases when this didn't normally happen before?

In the case of Bourbon casks, where the barrel/hoggie is not refilled with Bourbon for a period, surely much of the Bourbon influence would be lost? This seems to be borne out by those examples I've tried.
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GBrough
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PostPosted: Tue Apr 08, 2014 6:02 pm    Post subject: Reply with quote

Have never noticed anything bad from rejuvenating cask, a first fill does pop more than the when you used rejuvenated cask.
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PostPosted: Tue Apr 08, 2014 6:10 pm    Post subject: Reply with quote

Dont many distileries colour code the cask ends to let them know how many times a cask is used and making it easy to pick out casks in the warehouse. This makes it easier to find young whisky in old casks that has seen better days and it will be sent for blending.

I would say you would be more likely to come across whisky from a tired cask from an independent bottler as the the big players will simply dump it into a blend or pass it on to a whisky broker where indie bottlers can get hold of them.
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bifter
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PostPosted: Tue Apr 08, 2014 7:12 pm    Post subject: Reply with quote

Archer wrote:
Dont many distileries colour code the cask ends to let them know how many times a cask is used and making it easy to pick out casks in the warehouse. This makes it easier to find young whisky in old casks that has seen better days and it will be sent for blending.

I would say you would be more likely to come across whisky from a tired cask from an independent bottler as the the big players will simply dump it into a blend or pass it on to a whisky broker where indie bottlers can get hold of them.

Your latter point reminds me of a tasting at Robert Graham where we tried a 16yo or 17yo Auchentoshan that had come from a cask that had definitely seen better days, e.g. lots of ester notes still on the nose. The host was quite honest about this fact, the inference being that this was undesirable, after all the whole idea of casking is obviously to impart an influence on the spirit.
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albo
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PostPosted: Tue Apr 08, 2014 7:33 pm    Post subject: Reply with quote

This is the sort of thread that makes this forum such a useful and interesting place to be. Thanks to those who have contributed meaningfully.
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Keith
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PostPosted: Tue Apr 08, 2014 10:00 pm    Post subject: Reply with quote

Great info William.

Archer wrote:
Dont many distileries colour code the cask ends to let them know how many times a cask is used and making it easy to pick out casks in the warehouse. This makes it easier to find young whisky in old casks that has seen better days and it will be sent for blending.

I would say you would be more likely to come across whisky from a tired cask from an independent bottler as the the big players will simply dump it into a blend or pass it on to a whisky broker where indie bottlers can get hold of them.
Many distilleries do use a colour coding system which does make it easier to locate a barrel in a large warehouse but each barrel will also be barcoded nowadays, what is in the warehouse these days is closely monitored and the warehousemen go around with a barcode reader like they use in Tesco Very Happy

With everything computerised it is less likely for whisky maturing in a old cask finding its way to being bottled as a single malt and even if a dodgy cask did find its way through the system to be bottled as a single malt it should then be spotted by the master blender.

Obviously with a big operation the odd cask sneaks through. I think it is more common for sulphur tainted casks to sneak through the checking process and i would put that down to the fact that some people are more sensitive to sulphur than others so it depends who is checking the casks.
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Samson
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PostPosted: Wed Apr 09, 2014 2:58 am    Post subject: Reply with quote

I had no idea that at one point they actually pressurized sherry into the casks to rejuvenate them, i wonder how well this would have worked, i doubt it would have been a great success, i guess thats why they have stopped it. cheers William for the info.
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PostPosted: Wed Apr 09, 2014 4:21 am    Post subject: Reply with quote

Samson wrote:
I had no idea that at one point they actually pressurized sherry into the casks to rejuvenate them, i wonder how well this would have worked, i doubt it would have been a great success, i guess thats why they have stopped it. cheers William for the info.
Samson I have heard of this method but i dont think it was very successful at all.
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PostPosted: Wed Apr 09, 2014 3:37 pm    Post subject: Reply with quote

I am always wary of older whiskies of 20 years and more that have then had a cask finish i always think that they have found a duff whisky which has either spent to much time in a duff cask or has been overpowered by the oak cask and they give it a finish to try to rejuvenate the whisky and put some life and character back into it. After 20 odd years in a cask you have to ask yourself why they have to then give it a finish Idea
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PostPosted: Wed Apr 09, 2014 4:03 pm    Post subject: Reply with quote

'sloppy seconds' Very Happy Very Happy Very Happy

Well my whisky will never taste the same again!!


Dont see the need for these casks if theres plenty of "real" ones around. More technology for technologies sake?
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