Quite a dissapointing run yesterday.
I had high hopes for the SS triple distilled as it had fermented and cleared well. I calculated about 13% ABV in the wash which was as clear as water, smelled nice and tasted dry.
Brought the Reflux up to temperature, put plenty of water on to hold the column in reflux for about 20 mins and then slowly reduced the water to get some output.
Checked the first 50ml of output which smelled very strongly of nail varnish remover, put to one side and let it run to 100ml and it still smelled strongly, put that to one side and let it run to 150ml and then 200ml of foreshots - there seemed little point keeping this so the missues can have it for her nails...
I figured I had to start collecting sometime so I started the first jar. Once 500ml was collected I checked the ABV and it was 90% which given the low and slow flow rate was less than I had expected and less than I've had before.
The second 500ml didn't smell as bad - 91%
Collected 3 litres over the next few hours with some really good hearts, no smell at all but still only 92% at about 500ml / hour.
About 6 hours after starting to collect I noticed the smell of tails dragging in so I switched to a demijohn and collected about 1.5 litres but the ABV was rapidly dropping off. Shut down at 50%.
Cleaned everything, and put all the jars to one side.
Checked them this morning and esters are clearly present in the first two jars (1 litre) so that's a fair amount of heads. The next 1.5 litres has no smell at all but the last .5 litre jar has a faint tinge of tails creeping in.
I'll re-check the smell tonight and also the ABV but I'm quite dissapointed - the quantity is ok, the ABV is less than I thought it would be (I know it's only 1-2% under) and the ratio of heads / tails to hearts was a lot higher than I've seen in the past.
Some good positives from the run though. The split water feed worked ok. I had to add an extra water valve into the condenser pipe water output to keep pressure on the system or the water valve on the column jacket didn't work well. However once I'd done that it worked very well.
I also was running a temperature probe in the column water output which gave me a very good indication on the adjustment on the water feed - I could slow the flow and watch the column water temperature climb quicker than the same change affected the vapour temperature.
To sum up I was expecting a lot more hearts from the triple distilled than I actually got.
I've got an alcotec 23% on the go and I've got an alcotec 48 to try out some time but I think I'm done with turbo's for a while. Next up will be the modern day m/shine from Artisan Distillers followed by the birdwatchers sugar wash from Home distillers.Statistics: Posted by MrCat — Tue Aug 31, 2010 3:03 pm
]]>