Belgian bruin
Keg
500mlx3 2.2ml syrup
1.004
Rich coffee notes, very dry finish
Schwartzbier
1.014
Dark ale 10.1
750
500
Smooth
Esb 4.2
1.012
Keg
500
750×3
Little bit ash tray
Bitter 4.1
1.010
Keg
500
750×3 3mls
Smooth with bitter finish – too bitter? Malt lacking?
Strong
Strong esb
Using Ben’s dremil I have finally housed the raspberry pi in a recycled hard disk box. The power sockets came from a ups box bought from a computer recycle place.
Leah kindly dropped off 3 boxes of pears from her grandfather.
20L yield from the juicer.
Also used Ellen’s steaming juicer, approx 2L of syrup, plan to back blend this after fermentation.
Wrote off another hydrometer, gravity 1.040
8 apr 2014
Rehydrated mangrove jacks m02 cider yeast in water
25 may 2014
Bottled fg 1.012
30 grolsh bottles 455ml
Carbed with 2g syrup;
Re-programme an stc-1000 v1.0 with customer brewing firmare, that supports temperature gradient profiles.
The STC-1000 is a dual stage (heating and cooling) thermostat that is pretty cheap to buy. I (and a low of fellow homebrewers) use them to control the fermentation temperature of beer.
The goal of this project is twofold
To create the means to reprogram the STC-1000 with a custom firmware
To create a custom firmware, suited for fermenting beer
The first goal is achieved by using an Arduino UNO with a sketch to act as a programmer, and the second by using the SDCC compiler and GPUTILS.
Download by visiting the releases page and start by reading usermanual.pdf
Features
Both Fahrenheit and Celsius versions
Up to 6 profiles with up to 10 setpoints.
Each setpoint can be held for 1-999 hours (i.e. up to ~41 days).
Somewhat intuitive menus for configuring
Separate delay settings for cooling and heating
Configurable hysteresis (allowable temp swing) from 0.0 to 2.5°C or 0.0 to 5.0°F
Approximative ramping
Button acceleration, for frustrationless programming by buttons
Cheers!
Updates
Source code:
https://github.com/matsstaff/stc1000p
Discussion Thread:
http://www.homebrewtalk.com/f51/stc-1000-a-464348/
User manual:
usermanual.pdf
Fresh hops 200g harvested from next door yesterday
Green hop pale ale
50g acidulated
200g med crystal
300g aurora
5.5 ale malt
3g CaSo4
1.5g CaCl2
.3g MgSo1 Camden tablet
1/2 mash
1/2 sparge water
Mashed for 90 mins.
pH 5.05 not temp adjusted
Sparge water pH 6.8
Added .3 citric acid now 5.35
1.042 at 35c – 1.046
Pitched yeast from Foriegn stout
150g first wort hop
60 min boil
50g at 8 minutes
Kegged 23 mar 2014
1.010 4.8%
Nice hop balance – ipa like. Malt not bad
7%
Vinegar hint on the nose followed by malt. Carbonation appears low, however mouthfeel is full. Initially seemed very sour, as it warmed has calmed down.
Added sugar syrup and boiled water to see if I can make a starter.
pH 3.07
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.3 g acid added – looked more than measure to bring down mash pH
.3 sparge water added citric acid .3g to reduce mash pH
80 min boil.
Kawakawa additions, each leaves cut into approx 5 strips:
95g -20 mins
30g -10 min
40g at flame out. Stepped for 15 mins
1.050 at 40c = 1.054 og
Brewed with Michael Donaldson – beer write Sunday Star times.
Hop – teas – Summer 6% pellet, Kawakawa and Green shops not yet mature
Pitched with 3 yeasts into separate fermenters.
25 Jan 2014 – Final gravities
Lager 1.014 more smoke than medicinal
S-05 1.012
Belg yeast 1.009 fuller, no smoke or medicine
Mild 11C
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Goldings (Styrin) hops
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Entry for the Western Brewers conference.
OG 1044 @22C
I’ve been using a customized auduino for brewing, this was the first mash and boil with the raspberry pi.
A Dallas 18b20 digital thermometer is connected to pi, and a solid state relay is used to drive the new 3kw element.
It is written using node.js, and I have ported the arduino pid library to mode.
