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So, after some reading: Nuruk contains both yeast and fungi (like Aspergillus oryzae) which produce various amylases, breaking down starches into sugars. There's an interesting analysis of it here - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3385131/ . Once the ingredients are combined...

Is there something special about 100nF ceramic caps Addr_0 ? How come we use such small capacitors? Would bigger or smaller also work? (sorry for the stupid question, but I didn't do any more EE after first year).

Looks good. I'm envious of your plug-wiring :D What I would like to add to mine is a USB-socket so I can plug-into the Arduino without taking the cover off.

Iron Man Ale. ~Elephant Sized AbV Ale Batch size: 20 litres OG: 1.060 Amber malt extract 1.5kg Crystal malt 0.75 kg Brown sugar 1.5kg White sugar 2.0kg Irish moss 5g Hallertau (no AA specified) 45g (20 / 15/ 10) Heat water in a pan to 60, add crushed crystal malt, stir and raise temp to...

Another point to consider that the wattage of an element is at a given voltage. The standard for AU is (now) 230 volts. But in many places (like here) we still get the old 240 volts. But if you're looking at a 220V /N/ watt element, when run at say 240V it will be using /N/+10% (approx) more...

Yeah exactly, that's why we're having this conversation. I want and value the feedback. I'm really grateful that there was this opportunity for it. My beers scored "Good" to "Very Good" in points, but the negative feedback is excellent for continual process-adjustment, ultimately leading to...

So for a 22 litre batch, the grist was: 4.17 kg pale malt 1.00 kg flaked oats (cooked on the stove to a runny porridge) 0.66 kg munich 0.48 kg crystal 0.39 kg roasted barley 0.24 kg chocolate 35g northern brewer @ 60 (8.5%AA) 8g EKG @ 0 (5%AA) That's just shy of 17% oats. Maybe I should have...

Umm, yeah probably. The only bottle I have left is swing-top. I guess if it popped, then it was sealed A-Ok. Maybe a little over-carbed?

Yes ~ Oatmeal Stout (4 weeks in the bottle), This was the first time I made this recipe (from a book), first time oatmeal stout, first stout actually. Made with two packs of M03 dry yeast. To my palette it certainly was a very mild (in flavour) stout, and I did want more roastiness. AbV 4.6%...

I'm interested in the process of extending the fridge out, if you end up going that way. How about fermenting in long PVC (potable)water pipes? You could cut them to length, seal with an end-cap. I wonder if they taste.

So I got some very disappointing results from the HUB/Newcastle Show beer competition. The two beers I bottled with priming sugar were labelled as Oxidised. The other beer was filled from a keg, and was not. None of my beers have been called oxidised before, and I must admit I'm scratching...

Hmm, I guess I could make a "debug" version that logged them to the screen. AFAIK (and currently) there's no real debug features with Arduino. But being a coding-carmudgeon, I'll warrant that a good debug-log is better than any fancy debugging IDE.

There's was a couple of floats used for the PID parameter variables, I've promoted these to doubles - all the Kp_mash and Kp_hlt (and the others). I'll have to do some re-testing, but will check in the changes afterwards. I left all the UI settings & what-not as floats. Given they all don't...

Wow that's really interesting, I didn't know SSRs can have timings in the order of seconds. I just assumed it was in the order of milliseconds. The PID algorithm is used to "time-slice" a 5000 millisecond period of heater-time. Very slow Pulse Width Modulation (PWM) if you like. So if we are...

Is there an ETA for when the results will be posted?

I'm not sure I understand you 100% - is there something wrong with the timing? Did not run for 120 minutes? It definitely stops the mash temperature after step#4 of the mash cycle. The idea was that if you want to keep the final temperature, set it for a really long time. The bit of code...

Geeze, I feel pressured. ;) I've only ever bench-tested that bit (I watched it switch the 4x set-points over a 15 minute test). Did it work OK?

So you mean P=600, I=0, D=0 ? You've probably said it already, but what water volume and element are you testing with? (1800watt?) thanks, -kt

It's fairly simple to operate these kind of sensors & actuators from an Arduino. I want to make a "V2" of this on an Arduino Mega, which has a bunch more resources. I'd like to be able to do some geeky stuff, like plot temperature change curves, operate pump switching from the panel, etc.

I bought some direct from an online Belgian beer store. They were either bad when they left, or something went seriously wrong in transit. Anyway, whatever was in those bottles I wouldn't give > 70% to on a beer rating site. (and dark beers are my absolute favourite). So, I'm voting for "drink...