Does anyone have any info regarding expected evaporation rates from small casks?
Seven and a half years ago I bought a small cask (first-fill sherry) from Springbank. The cask held 54 litres of new-make spirit.
I tested my first sample a couple of months ago, and as expected, the sherry had really taken hold of the spirit, which was now amber-red in hue - and delicious!
After analysing a dram or two with my local expert, Mark Davidson of Edinburgh Cadenheads, I decided to bottle the entire contents (at a cask strength of 51.7%ABV) immediately - any more sherry influence would have massively overpowered the malt.
I'm lucky I did; I was hoping to get about 65 70cl bottles, but the cask only delivered 52. This works out at c.37 litres of spirit - a big drop from the original contents.
This seems to equate to an angel's share of about 5% a year instead of the expected 2%.
I knew that such a small cask would give me faster aging of the spirit because of the increased contact with the wood. I had not expected the higher evaporation rate - perhaps I should have.
Has anyone else had any experience of this? Is this huge angel's share typical for small cask sizes?
regards and raised glasses to all...