Alcohol total litres in vs out?

[danger_85]

Hi all,

I have been playing around with gin for a while and enjoying the results. Usually i just chuck the stillage rather than redistill it, however the otherday I thought I would test its strength and store it to redistill later.

From a 18.75l 40% single shot boiler charge, I stop the run after collecting 7.55l at 77.4%. Stillage results in 10.55l @ 9.0% after straining out the botanicals. Does the alcohol content of the stillage seem about right as I seem to be losing a fair few litres of alcohol (LAL) each run. I was expecting litres in to be pretty close to litres out. No leaks that I am aware of. T500 boiler with copper alembic head.

In boiler 7.51 LALs
Collected spirit 5.84 LALs
Stillage 0.9 LALs

Discrepancy/Loss 0.72 LALs

Cheers,
Danger