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abudabi

abudabi

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SykomantiS said:
NO, that

No, that's for the mashing.

Okay, so I figure...

grain absorption @ 1L/kg
mash thickness @ 3L/kg
boil off rate 3L/kg

View attachment 946904
Ignoring all trub losses that should put you at 20L in the fermenter. This is obviously a thumb-suck, as I don't know your equipment profile.

Assumed 75% efficiency, room and grain temp @ 25°C:

View attachment 946906
Click to expand...

Pitched this on 14th into a steady 18 deg fridge. Reading now 8 days later.. seems bang on:
1608639089220.png

Suggestions? Do I need to ramp the temp up for the next few days before bottling or just dive in and bottle?
 
Dimpie (COMPUTEK)

Dimpie (COMPUTEK)

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abudabi said:
Pitched this on 14th into a steady 18 deg fridge. Reading now 8 days later.. seems bang on:
View attachment 980672

Suggestions? Do I need to ramp the temp up for the next few days before bottling or just dive in and bottle?
Click to expand...

Is that FG reading constant over 2 or more days? ... if yes then bottle

No need to ramp up, but if you're not a rush you could ramp to 20ºC of 2 days ... that means you'll bottle on xmas day tho ?

PS: i usually start to ramp 2ºC as soon as the krausen starts to drop
 
abudabi

abudabi

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Dimpie (COMPUTEK) said:
Is that FG reading constant over 2 or more days? ... if yes then bottle

No need to ramp up, but if you're not a rush you could ramp to 20ºC of 2 days ... that means you'll bottle on xmas day tho ?

PS: i usually start to ramp 2ºC as soon as the krausen starts to drop
Click to expand...
1st time I took a measurement now.. So can't say how long it's been like that.

Think I'll ramp up and then bottle on evening of 24th. I'm making Christmas day lunch chickens on that evening so works out well.

Thanks!
 
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GrootP

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I'm now ready to do my first brew with the Voss Kveik yeast, I got the Mangrove Jack version from Brew Craft but it does not give much detail.
Do I just pitch it dry and at say @ 30 deg C?
 
abudabi

abudabi

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GrootP said:
I'm now ready to do my first brew with the Voss Kveik yeast, I got the Mangrove Jack version from Brew Craft but it does not give much detail.
Do I just pitch it dry and at say @ 30 deg C?
Click to expand...

Used same a little while ago. Also pitched dry and it was fine.
 
abudabi

abudabi

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GrootP said:
Planning a 23 liter batch, one packet enough and pitching temperature?
Click to expand...
I used it on a 20l batch but apparently it's OK to underpitch from what I've read.
My pitching temp was probably about 25 (didn't measure) and then went up to 30-35 from there.
 
Rocket-Boy

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So it was time to add temp control for fermentation.
My wife had an old fridge at her bakery that they were replacing with an industrial one so I picked it up for free.
Being the lazy bugger that I am, I dont want to go and look at an STC1000 to see what is happening. Im also big into home automation so I figured I would build my own from bits I had lying around.
I started writing code and putting things together, got a bit stuck with figuring out how to handle thermal load with 2x DS18B20's and then found Fermentrack.
So I ditched my code and put together a Fermentrack system with a Raspberry PI and an ESP8266 with a dual relay board and 2x DS18B20's.

This is the end result:
fermentrack.png

It uses a PID algorithm to calculate the difference between fridge and beer temp and helps to prevent overshooting on heating/cooling cycles.
You just need to select the devices connected to the ESP8266 and assign them to fridge temp, beer temp and relays.

fermentrack sensors.png

It also supports fermentation profiles, so you can set it at x temp for x days and then ramp up or down the temp for any period of time.
Best of all I can control it from anywhere, so that suits my laziness just fine :)
 
S

SukkaFoo

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Rocket-Boy said:
So it was time to add temp control for fermentation.
My wife had an old fridge at her bakery that they were replacing with an industrial one so I picked it up for free.
Being the lazy bugger that I am, I dont want to go and look at an STC1000 to see what is happening. Im also big into home automation so I figured I would build my own from bits I had lying around.
I started writing code and putting things together, got a bit stuck with figuring out how to handle thermal load with 2x DS18B20's and then found Fermentrack.
So I ditched my code and put together a Fermentrack system with a Raspberry PI and an ESP8266 with a dual relay board and 2x DS18B20's.

This is the end result:
View attachment 987538

It uses a PID algorithm to calculate the difference between fridge and beer temp and helps to prevent overshooting on heating/cooling cycles.
You just need to select the devices connected to the ESP8266 and assign them to fridge temp, beer temp and relays.

View attachment 987542

It also supports fermentation profiles, so you can set it at x temp for x days and then ramp up or down the temp for any period of time.
Best of all I can control it from anywhere, so that suits my laziness just fine :)
Click to expand...

I’m a huge fan of my fermentrack implementation. Love being able to keep an eye. What you will see as you learn it, you can pretty much track fermentation progress by how hard the fridge is working to keep it cool.
 
S

SykomantiS

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May 7, 2012
Messages
3,797
Rocket-Boy said:
So it was time to add temp control for fermentation.
My wife had an old fridge at her bakery that they were replacing with an industrial one so I picked it up for free.
Being the lazy bugger that I am, I dont want to go and look at an STC1000 to see what is happening. Im also big into home automation so I figured I would build my own from bits I had lying around.
I started writing code and putting things together, got a bit stuck with figuring out how to handle thermal load with 2x DS18B20's and then found Fermentrack.
So I ditched my code and put together a Fermentrack system with a Raspberry PI and an ESP8266 with a dual relay board and 2x DS18B20's.

This is the end result:
View attachment 987538

It uses a PID algorithm to calculate the difference between fridge and beer temp and helps to prevent overshooting on heating/cooling cycles.
You just need to select the devices connected to the ESP8266 and assign them to fridge temp, beer temp and relays.

View attachment 987542

It also supports fermentation profiles, so you can set it at x temp for x days and then ramp up or down the temp for any period of time.
Best of all I can control it from anywhere, so that suits my laziness just fine :)
Click to expand...
Very nice.

I'm also currently on the lookout for a fridge/fermentation chamber. I might be getting an old used fridge from my uncle.

Can you elaborate on the setup / how you connected the pi to the ESP8266 and what is controlled by which part?

I'm gonna have a look at Fermentrack now.
 
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