Search found 23 matches

by Simon
Mon 21 Dec, 2020 8:55 pm
Forum: User contributed roast profiles
Topic: Steve's Ultimate Profiles 100g - Constantly Declining Fan Profile (Fan Cal 0.91)
Replies: 70
Views: 12384

Re: Steve's Ultimate Profiles 100g - Constantly Declining Fan Profile (Fan Cal 0.91)

Thanks Chris. Adjusting the preheat check gradient time from 0:30 to 0:45 did the trick. log 296 is one of the aborted roasts and 299 is a completed roast. A bit of a ROR dip at first crack, but the proof of the pudding will be in the drinking.
by Simon
Sat 19 Dec, 2020 11:10 am
Forum: User contributed roast profiles
Topic: Steve's Ultimate Profiles 100g - Constantly Declining Fan Profile (Fan Cal 0.91)
Replies: 70
Views: 12384

Re: Steve's Ultimate Profiles 100g - Constantly Declining Fan Profile (Fan Cal 0.91)

Hi All,

Any thoughts on what to tweak if I'm getting "temperature rise too slow" errors a few seconds into the roast on MD3 and MD4? This is in NZ with 230V. Increase the input power slightly? Or is there an early temperature vs time test that it's failing?

Cheers
Simon
by Simon
Thu 28 May, 2020 10:43 am
Forum: Questions/discussion
Topic: Wednesday Profile Development
Replies: 3
Views: 1545

Re: Wednesday Profile Development

Here's a log of my roast. haven't viewed it in Kaffelogic Studio yet. Can report no tipping, moderately loud first crack. Roasted to level 4. Tried chewing on a few and they tasted great. Am about to make espresso from them.
by Simon
Tue 26 May, 2020 3:01 pm
Forum: Questions/discussion
Topic: Wednesday Profile Development
Replies: 3
Views: 1545

Re: Wednesday Profile Development

Hi Wayne, Here's an attempt at a functioning profile created from the first of your three. I tried to add a boost around first crack to counter the behaviour Chris showed us where the beans absorb heat in a burst as they crack. Intending to use this on my Peruvian Blend (washed, 1200m). cheers Simon
by Simon
Thu 02 Apr, 2020 8:25 am
Forum: Comments, questions, and issues
Topic: Dark roast
Replies: 1
Views: 820

Re: Dark roast

Also here are images of my espresso machine basket. The internet tells me this is a 14g basket. With 20g dosed there is a slight indentation in the puck from the shower screen after brewing. Also; the InCafe Peruvian blend is "a mix of Caturra / Catimor / Catuai variety" with "a short roasting windo...
by Simon
Wed 01 Apr, 2020 6:48 pm
Forum: Comments, questions, and issues
Topic: Dark roast
Replies: 1
Views: 820

Dark roast

Hi all, Following our discussion this morning on the virtual cafe, here are two logs. 152 is the profile I've been using for a while, with reasonable results. 155 is the profile I created on Monday night to have a minimal ROR after first crack. My aim is to produce a dark roast (toffee/caramel/almon...
by Simon
Wed 29 Jan, 2020 6:29 pm
Forum: User contributed roast profiles
Topic: Brazil medium espresso roast
Replies: 16
Views: 6444

Re: Brazil medium espresso roast

Hi Steve, I would be keen to try a profile for a darker roast optimised version of this profile (4.5 to 4.9 or thereabouts) if you have one. I prefer my chocolate/licorice/caramel flavours to 'fruity' flavours. And I've been sourcing beans from Incafe, which as the name suggests are mostly Peruvian....
by Simon
Thu 17 Oct, 2019 1:25 pm
Forum: User contributed roast profiles
Topic: Modified Firestarter
Replies: 8
Views: 4118

Re: Modified Firestarter

Thanks Chris. The slow oscillation is interesting and would certainly account for what's going on. I'll try increasing the Kd multiplier first, and if that doesn't have the desired effect I'll try increasing fan speed. Might have to roast at about 3 in the morning to be confident in getting close to...
by Simon
Sat 28 Sep, 2019 4:14 pm
Forum: User contributed roast profiles
Topic: Modified Firestarter
Replies: 8
Views: 4118

Re: Modified Firestarter

Hi Chris,
Yes I thought it might. The air temperature oscillates quite a lot as the RoR approaches zero. Can you think of any settings tweaks that might reduce the oscillation? In PID terms, perhaps it's underdamped.
by Simon
Sun 22 Sep, 2019 2:15 pm
Forum: User contributed roast profiles
Topic: Modified Firestarter
Replies: 8
Views: 4118

Re: Modified Firestarter

Actually I've found a modified soft brew profile is giving very good results. The mod is essentially to drop the rate of rise right down...
That and keeping the roasted beans in an airtight glass container. Seems to work well for most blends.