The information below was kindly provided to us by a Customer using 1 X 1000 litre Wash Still plus 1 X 500 litre Spirit Still, we found it to be very useful information for microdistillery distillation processes . For every mash into the mash tun we use 425Kg of crushed malted barley and 1,900 litres of hot water.

From

that

we

gain

1,600

litres

of

wort

(sugary

barley

flavoured

liquid)

into

the

2,000

litre

fermenter

for

fermentation.

You

need

extra

space

for

the

yeast

to foam up.

From

that

1,600

litres

of

wort

which

ferments

into

9%

or

10%

ABV

wash,

we

yield

around

200

litres

of

caskable

spirit.

This

1/8

rule

is

typical

in

whisky

production.

The

200

litres

of

caskable

spirit

(new

make

spirit)

is

around

60%

ABV,

thus

is

(200 litres X 0.6) = 120 litres of pure alcohol (LPA) per mash.