Malting Machine

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Malting Machine

Postby Ned » Tue Sep 04, 2018 6:17 pm

Steeping Grain
The moisture content of barley is increased from 12-13% to 42-46% required for germination.
Steeping has two components, west steeping and air rests.
Steeped in cool water for eight hours. Drained off and air rested for eight hours.
Steeped again for two hours. Drained off and air rested for eight hours.
Continue this until small roots start to grow. (call chits)
So the barley is Chitted.
I use two bins the small one has holes drilled and the large one hold the water. So drying is lifting the
small bin up and let it drain for resting period. Renew water each time you steep.
I also use a small aquarium pump to push air into the water.
There is plenty of info floating about on the Web.


Malting Machine
An old front loader washing machine.(whirlpool AWM 312/3) With a dryer motor on top and pulleys to gear down the speed to 18 rpm using two small bicyle wheel at the back.

Germination of grain at 18 deg with moisture. 2 to 5 days
A pressure sprayer keeps the grain moist and the motor and drum are controlled by the Sansui timer and rotates 5 minutes every 1 hr 12 minutes and the inkbird timer controls a water value which sprays water for 5 seconds and a small blower fan on the right hand side for air circulation
The 240 Volt Sansui is a 20 program timer.
I use a turbo oven for temperature to keep the temperature to 18 deg. This is controlled by an STC

Drying and Kiln.
When the acrospire is 3/4 length. The turbo oven is set on 40 deg for 24hrs and 60 deg for 12 hours. to dry and than at 80 deg for 3 to 5 hours to kiln.
Need to test for moisture content, so those times are approximate.
The STC controller is powered direct from the 240 volt power. The temperature is set to whatever is required and the turbo oven and the motor to turn the drum is now plugged into the STC controller which switches on and off as the required when temperature is reached.
The temperature probe is through the door into the malt. Had to put a stiff piece of wire along the probe to keep it in the malt,.
When drying and Kiln, water spray is not needed.
Once a day I pressurize the sprayer to 30psi and I need to keep an eye on the temperature. It doesn’t use much water, about 2 litres a day maximum. Its call a halogon turbo oven and draws 1200 watts, but it is very efficient. Yes it has a fan that forces air into the washer.
Note the STC is a Lilytech ZL-6230A+ with and output of 30A

Making Pale Ale Malt.
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Re: Malting Machine

Postby Andrew » Tue Sep 04, 2018 6:18 pm

Great work Ned :handgestures-thumbupleft:
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Re: Malting Machine

Postby Ned » Tue Sep 04, 2018 6:21 pm

Andrew wrote:Great work Ned :handgestures-thumbupleft:

Thanks
I think fellow distillers, will get the gist of what I have done.
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Re: Malting Machine

Postby Georgio » Tue Sep 04, 2018 6:51 pm

Exceptional Ned. Thank you for sharing.
:handgestures-thumbupleft:
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Re: Malting Machine

Postby Andrew » Tue Sep 04, 2018 7:11 pm

Georgio wrote:Exceptional Ned. Thank you for sharing.
:handgestures-thumbupleft:

How did I know you would show an interest in this :laughing-rolling:
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Re: Malting Machine

Postby Georgio » Tue Sep 04, 2018 7:20 pm

Hahaha..........educated guess :laughing-rolling: :laughing-rolling:
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Re: Malting Machine

Postby The Stig » Tue Sep 04, 2018 7:32 pm

Maybe we need a Tinkerers forum :laughing-rolling:
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Re: Malting Machine

Postby Ned » Tue Sep 04, 2018 8:06 pm

Georgio wrote:Exceptional Ned. Thank you for sharing.
:handgestures-thumbupleft:

No worries at all.
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Re: Malting Machine

Postby db1979 » Tue Sep 04, 2018 8:23 pm

Top work Ned :handgestures-thumbupleft:
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Re: Malting Machine

Postby nuddy » Tue Sep 04, 2018 8:40 pm

Thats a pretty skookum setup ya got there Ned. Loving it.
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Re: Malting Machine

Postby Ned » Tue Sep 04, 2018 8:57 pm

db1979 wrote:Top work Ned :handgestures-thumbupleft:


:text-thankyoublue:
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Re: Malting Machine

Postby Ned » Tue Sep 04, 2018 8:58 pm

nuddy wrote:Thats a pretty skookum setup ya got there Ned. Loving it.

Hey learned a new word today "Skookum" love it :text-thankyoublue:
Last edited by Ned on Tue Sep 04, 2018 8:59 pm, edited 1 time in total.
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Re: Malting Machine

Postby The Stig » Tue Sep 04, 2018 9:24 pm

Enlighten us, what is this Skookum ?
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Re: Malting Machine

Postby Sam. » Tue Sep 04, 2018 11:41 pm

What’s the batch size?
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Re: Malting Machine

Postby Ned » Wed Sep 05, 2018 8:42 am

The Stig wrote:Enlighten us, what is this Skookum ?


Used in the Pacific Northwest region of North America.
Lots of meanings.

good,' 'strong,' 'best,' 'powerful,' 'ultimate
'really good' or 'right on! 'excellent! :D
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Re: Malting Machine

Postby Ned » Wed Sep 05, 2018 8:54 am

Sam. wrote:What’s the batch size?


Can do 7.5 kg dry weight of barley. Once you start to steep it, you increase that to 10 or 11 kg.
Once you kiln and dry it comes back to roughly 7.5 kg.

So the machine can hold about 11kg of wet barley. A bigger size machine would have been great.
Had to tilt the front of the machine up about 100mm (so it was on an angle) and also reduce the size of the opening, so the grain would not spill out when the drum turned.
It was a lot of experimentation.
Cost about $1 per kg to malt, that is power wise. (Steeping through to kiln)
Need to get the grain for next to nothing.
Lot of work, lot of fun and a sense of achievement. :-D
Last edited by Ned on Wed Sep 05, 2018 8:56 am, edited 1 time in total.
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Re: Malting Machine

Postby Sam. » Wed Sep 05, 2018 12:07 pm

Would be perfect for 40L batches of beer :handgestures-thumbupleft:

Would only take 2 batches to have enough for a 50L whisky wash as well :D
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.

Re: Malting Machine

Postby Ned » Wed Sep 05, 2018 2:12 pm

Sam. wrote:Would be perfect for 40L batches of beer :handgestures-thumbupleft:

Would only take 2 batches to have enough for a 50L whisky wash as well :D

:text-+1:
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Re: Malting Machine

Postby wynnum1 » Thu Sep 06, 2018 9:40 am

Where are you and what is the weather like $1 a kilo is expensive for electricity when can purchase malted grain for under $2 a kilo but it is good to try and make your own.
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Re: Malting Machine

Postby Ned » Thu Sep 06, 2018 10:43 am

wynnum1 wrote:Where are you and what is the weather like $1 a kilo is expensive for electricity when can purchase malted grain for under $2 a kilo but it is good to try and make your own.

In Victoria. Weather is brisk at the moment about 15 deg.
To make it from whoa to go for (7.5kg) it uses 22 kWH by .33 cents = $7.26
I only do it when I can get the grain for nothing.
I pay about $3.50 per kg for pale ale malt plus Freight which would be about $15 on 7.5kg = $5.50 a kg on that basis.
Last edited by Ned on Thu Sep 06, 2018 10:45 am, edited 1 time in total.
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