Anyone out there still using Poppery-s or similar to roast? I'm wondering about roast times, namely the speed of them that I'm getting--8 min. to C+ on Yerga and Kenya AA--first crack at 3:30+/-. Is this too short a time to develop sugars?
On Mon, Sep 03, 2007 at 01:44:22PM -0400, Tim Deines wrote: <Snip> This is a matter of taste, but I would say that is much too short. You should not get to first crack before 7 minutes, and the total roast time should be 10-12 minutes. I have modified my Poppery with a dimmer for the heater and a variac for the fan to allow me to control the profile. You might try using a smaller load of beans, which (contrary to what most people guess) will make your roast take longer. -- Randall
Thanks for the info. I know there are several Poppery mod pages out there. Do you have a fave? Is fan control essential (I know it is when Beckham plays)? Any other ways to "cheat" the roast cycle, stretch it out? Tim On 9/3/07 3:29 PM, "Randall Nortman" wrote: <Snip>
On Mon, Sep 03, 2007 at 03:43:35PM -0400, Tim Deines wrote: <Snip> You can try to cheat by using a long extension cord to lower the voltage. It is a rather crude method and difficult to control -- voltage to both fan and heater will be reduced. I didn't exactly follow any of the mod pages I saw, though I read through them so that I could identify all the important parts. I split-wired mine, with the heater on a 1500W incandescent dimmer and the fan on a 10A variac. If I would do it over again, I'd just spring for a used 15A variac on eBay for the heater and forget about the dimmer (which was quite expensive itself -- I think almost $40 shipped). I also adjusted the thermostat to let it get a bit hotter. You need to boost the fan only if you want to roast larger batches. The limit with an unboosted fan to get good bean movement, I find, is about a quarter pound. With a boosted fan, I do 1/3lb batches, and I think you can probably do up to 1/2lb. You can also modify the housing to improve airflow somewhat without actually boosting the fan voltage. I plan to do that at some point, but for now I'm just boosting the voltage. Note that I use an original Poppery (P1). I tried a Poppery II and found it was not nearly as good. -- Randall
Thanks, Randall. I'm awaiting shipment of a Poppery I. Got 2 II's, and they function well, but I sense that the roasts aren't quite "deep" enough, i.e. not drawing out complexities. Not that I'm not enjoying the roasts; I am! But I want to get the most out of the beans with the equipment I've got. On 9/3/07 3:55 PM, "Randall Nortman" wrote: <Snip>
Randall, Check out Edward's Popper Roasting Tipshttp://www.edwardspiegel.org/easnuke/modules.php?name=Load_Page&uidůRob P.
I think you meant me, Rob P., Tim, but no matter. Thanks for the link! On 9/3/07 4:20 PM, "Rob Piirainen" wrote: <Snip>
I ditched the plastic hood, added a soup can and extension chord. Roasted a little less than 1/2 c. (no, not weighing...yet) of Harrar (not SM's and I'm skeptical) and 1st crack came at approximately the 6 min. mark. I cut the roast short a little early, I'm afraid, at 10 min., as I couldn't quite judge where the roast was. Still, it looks like a solid C+. By the way, does Harrar tend to roast unevenly, or is that too broad a question? Mine was a bit piebald. And: Edward's Popper Roasting Tips is a great page. I'd forgotten about his. Thanks again. Tim On 9/3/07 4:20 PM, "Rob Piirainen" wrote: <Snip>
This is a multi-part message in MIME format. Randall Nortman wrote: <Snip> I use a variac to boost voltage on the fan, and a second BIG variac to dial down voltage on the heater coil. But I'm wondering, has anybody tried a series light bulb on the heater to reduce voltage <Snip> I can do 1/2 pound, but I find 200 grams to be about the perfect amount, with never having to stir. This is with 140V plus on the fan. <Snip> I'd be interested in that one! I've also read about replacing with a higher CFM fan??? More air with a pyrex tube is probably the way to go. I'm using a can on the top of my P1, but I have to reduce fan voltage as roast progresses, or it'll blow beans out the top. <Snip> There is NO COMPARISON. I started with PII clones and wiring the switch to take the main heater in and out. They are JUNK compared to the P1.
I'm using a 1250 watt machine. I've had some good results with 1st crack around3-4 min, and 2nd begining around 7. There are tons of mods on the internet so you can control the fan & heater separately (that's what I've done) you can also add more beans than you normally do to speed up the roast, and use less to slow it down on a stock machine. TIm ---- Tim Deines wrote: <Snip>
For the heater control, I used a standard $5 light switch. I know how to hit certain profiles with an on-off pattern. ie 14 sec on, 1 sec off up until 1st crack at about 5 min, then slow down the fan to force 1st crack, then bump up the fan a little to extend the time between 1st and 2nd. Works nearly every time. With a thermometer, you can force different beans along with the fan speed or the on off-ie 4 on 1 off is great for slowing down the heat too, whereas 19 on 1 off (the most I can go without warpage of the popper guts) ramps up the heat. Tim ---- Jim Anable wrote: <Snip>
Tim Deines wrote: <Snip> I use a Pumper popper. At first, that was my main roasting method, but then moved up to doing a pound at a time in a wok. Now I use it when I want to roast a quick one for a pot (usually when I'm getting low but don't have the time or energy for the wok roast). However, my experience is different from most. Mine roast fast. It hits first crack around 3.5 minutes, and will go into second crack shortly after 4 minutes on most coffees. By 4.5, I'm moving into Vienna range. At one point I did the extending the roast times by using an extension cord, taking off the hood and using a soup can (which required that I roast outside) and leaning it to let hot air escape more instead of building under the beans. I was able with that to extend roasting times to around 7 minutes for a full city. At first, it seemed to help. However, all the coffee began tasting baked and horrible that I made with it. I finally went back to the way I had been doing it and for some reason, the coffee that cooks within 4 minutes is terrific, and much more flavorful than the coffee that would take 7 minutes. Why is my experience different? I have no idea. Must be something about my popper. But all I know is the beans taste much better, but they taste baked when it gets above 6 minutes. I guess my popper is just very efficient or something. So, you're back to the general rule. Experiment, do what works and gives the best flavor, and don't be scared to go back to the shorter times if indeed that does give you the best flavors from your coffee. But hopefully the experience of those here will help you find what does that best with your machine. Good luck. -- Rick Copplehttp://www.rlcopple.com/
<Snip> I had the same experience. My original popper roasts were in the 5 minute range and all attempts to extend the time resulted in flat coffee. So I went for shorter times and the coffee improved. So much so that I purposely built a fast roaster to achieve second crack in under 2 minutes. When the timing was right, the fastest were the best. But miss the shutoff by a few seconds either way and the coffee was either burnt or cardboardy. I settled for around 3 minutes to first snap of second crack and that gave me very good coffee with fewer mistakes. I was disappointed using an original Poppery I, the roast time was around 7 minutes to first snap of second, and resulted in lower quality compared to the Poppery II clones. I then converted to drum roasting which provided much better profile control and much better coffee. --
I roasted a second 1/2 c. batch of Kenya AA yesterday, and today it tastes as I'd hoped (which I won't try to describe since I once used patchouli as a descriptive--turns out, btw, that my partner had used patchouli essence in that jar for soap! Yuck!) Also roasted same amount of Yirga and it's tasty, too. Having a good coffee day. The thing with the Kenya is that the first time I tried it out was on stovetop, and it came out sour, no matter how much I tried to convince myself it was "bright." That was a longer roast, with 1st crack coming between 10-11 min. Today's cup comes out of the Poppery II (and yes, it's chintzy, but it works--leave the PII alone!) with 1st crack at 3:40 and roast stopped at 8 min. A far superior roast, I would say. Come to think of it, my last two stovetop roasts have been hopelessly sour--one Kenya AA and one blend. That's disappointing because I feel like I've got good control there. Any thoughts? I'm not paying enough attention to temperatures right now because of equipment limitations, fyi, though I do drop beans in on stovetop around 450, expecting the temperature to then drop into the 200s after beans and lid removal. I then build the heat back up. On 9/4/07 3:08 AM, "Rick Copple" wrote: <Snip>
I'm currently using a Poppery I with only the switch mod (fan always on, switch controls heat on/off). I can stretch first crack to 7 or 8 minutes simply by cycling the heat on and off. It's a bit tedious, but it's simple and it works.
I'm interested in that mod, partly because I think I might be able to do it myself. Are you mechanically inclined or did you follow a mod page? If the latter, which one? Tim On 9/4/07 4:33 PM, "Luke Eelman" wrote: <Snip>
This is a multi-part message in MIME format. thirddayhomeroaster wrote: <Snip> My previous setup was a PII with the switch controlling the heater. I get MUCH better results with a variac and accurate thermometer. I thought that the PII wired that was was "good enough" until I upgraded. There's a world of difference, IMHO. <Snip> -- ├É├Ć├á┬í┬▒├í
Here's a couple I used:http://members.shaw.ca/espressomio/poptwo.htmlhttp://mdmint.home.comcast.net/coffee/fancontrolproto.htm google popper mod & see what else you get. All the machines are fairly identical. If you are going to make the element switchable, you might as well add the dimmer switch for the fan-You'll be splitting the circuit. You'll have to get a transformer anyway. You'll probably need to take the part number to radio shack for the transformer or they won't know how to help you. Believe me, it is absolutely worth the $5 to add the dimmer switch to the fan. It's the heater dimmer that is expensive due to the wattage. TIM ---- Tim Deines wrote: <Snip>
Developing sugars is easy. Stopping before developing charcoal takes a lot more care.... Try a 50' extension cord between the plug and the poppery... You just might like the delay induced by such a modification. Brett On 9/3/07, Tim Deines wrote: <Snip> -- Cheers, Bretthttp://homeroast.freeservers.com
Snicker. Cookie http://cookiestitches.blogspot.com= ----- Original Message ---- From: Tim Deines To: = "homeroast" Sent:= Monday, September 3, 2007 2:43:35 PM Subject: Re: +Poppery roasts = Is fan control essential (I know it is when Beckham plays)? Tim