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#131
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![]() "Tom Nakashima" wrote in message ... "Wolfgang" wrote in message ... Now, my bride has dragged me up from the depths of coffee epicures to fresh ground (i.e. she buys bulk beans and grinds them as she makes the pot up for me) coffee with well-filtered water (this, I believe is one of the keys) that has had a chance to set open overnight, reducing the clorine levels. I haven't quite gone so far as filtering the water or allowing the chlorine to outgas......yet. We'll see. Wolfgang No need to filter, because as you bring the H20 to near boil, the chlorine will evaporate. All things take time. Evaporation, necessarily, only occurs at the air/water interface or "meniscus," if you will. No expert on fluid dynamics myself, but I suspect that complete elimination of chlorine from a liter of water (or thereabouts) in the time it takes to brew a pot of coffee ain't gonna happen. Or just use spring water sold in the local supermarkets. 89 cents a gal. Or just let the tap water sit out overnight. We visit Peets once a week and only buy 1/4 lb. bag of whole bean. I always ask when they're expecting their weekly shipment. Their min. size for sale is 1/4 lb. A quick check confirms that the nearest Peet's store to me is in Evanston, Illinois......about 83 miles from here. Looking briefly at their website, I find no evidence that they sell green beans. The Coffee Project, on the other hand, definitely sells the green beans and they ship from two locations, somewhere in southern California which, admittedly, is a longer ride than Evanston, and Muskego, Wisconsin. I can't quite hit Muskego with a rock from here, but I can get there in the time it takes to finish a good hot cup of freshly roasted and brewed coffee. And, anyway, the brown truck can get here (with green beans) by tomorrow if I order today. plus they will give you a free cup of coffee, sometimes they forget to ask you that, you'll have to remind them for the freebie. Well, I DO drift down toward the Chicago area once in a while. Next time I find myself in Evanston...... ![]() Thanks. Wolfgang |
#132
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![]() "Steve" wrote in message ews.com... On Fri, 11 Jan 2008 12:40:08 -0600, "Wolfgang" wrote: I may or may not ever have made espresso myself (there are entire days in my life that I no longer remember with absolute clarity) but the difference here appears to my admittedly inexperienced eye to be well within a reasonable range for normal disagreement. Or is there some critical factor I'm not aware of? Well, it's more of a dictum. The Istituto Nazionale Espresso Italiano Good God! There's an Istituto Nazionale Espresso Italiano??!! states: ...Exit temperature of water from the unit 88°C ± 2°C... Hm.... 88-2 = 86 88+2 = 90 Neither of the two proposed temperature ranges, 85-90......88-96, quite hits the mark. But one is certainly closer than the other. It's like the AFTM numbers. If the first 10 yards weigh 140 +/- 6 grains, it's a 5 weight, period. If it weighs 148 grains, what does it become? Um.....something that would fall short of achieving the wholehearted endorsement of the Istituto Nazionale Espresso Italiano, I presume. ![]() Wolfgang |
#133
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On Jan 11, 6:57 pm, Steve wrote:
On Fri, 11 Jan 2008 09:34:48 -0800 (PST), Mike wrote: May be of interest; http://www.cooklikeaprofessional.com/espresso.html From their page: "A pump espresso machine, on the other hand, has a boiler that heats the water to 85-90 degrees - the ideal temperature for espresso" Um, they did a booboo. I am sure they mean °C ( Celsius) http://answers.google.com/answers/threadview?id=782224 MC |
#134
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![]() "Wolfgang" wrote in message ... "Tom Nakashima" wrote in message ... "Wolfgang" wrote in message ... Now, my bride has dragged me up from the depths of coffee epicures to fresh ground (i.e. she buys bulk beans and grinds them as she makes the pot up for me) coffee with well-filtered water (this, I believe is one of the keys) that has had a chance to set open overnight, reducing the clorine levels. I haven't quite gone so far as filtering the water or allowing the chlorine to outgas......yet. We'll see. Wolfgang No need to filter, because as you bring the H20 to near boil, the chlorine will evaporate. All things take time. Evaporation, necessarily, only occurs at the air/water interface or "meniscus," if you will. No expert on fluid dynamics myself, but I suspect that complete elimination of chlorine from a liter of water (or thereabouts) in the time it takes to brew a pot of coffee ain't gonna happen. Not sure what percentage of chlorine is in tap water, but I'm sure it's a very small amount (millionths per?)....at least not enough to kill you (I think) or detect with your tastebuds as you bring it to a near boil. Or just use spring water sold in the local supermarkets. 89 cents a gal. Or just let the tap water sit out overnight. We visit Peets once a week and only buy 1/4 lb. bag of whole bean. I always ask when they're expecting their weekly shipment. Their min. size for sale is 1/4 lb. A quick check confirms that the nearest Peet's store to me is in Evanston, Illinois......about 83 miles from here. Looking briefly at their website, I find no evidence that they sell green beans. The Coffee Project, on the other hand, definitely sells the green beans and they ship from two locations, somewhere in southern California which, admittedly, is a longer ride than Evanston, and Muskego, Wisconsin. I can't quite hit Muskego with a rock from here, but I can get there in the time it takes to finish a good hot cup of freshly roasted and brewed coffee. And, anyway, the brown truck can get here (with green beans) by tomorrow if I order today. A lot of folks have use mail order...3-day air. Unless you're ordering kilos of Columbian blend through Juan Valdez. plus they will give you a free cup of coffee, sometimes they forget to ask you that, you'll have to remind them for the freebie. Well, I DO drift down toward the Chicago area once in a while. Next time I find myself in Evanston...... ![]() Thanks. Wolfgang |
#135
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![]() "Wolfgang" wrote in message ... So, while I appreciate discussions of the fine points and the arcana of food and beverages (it's probably no secret that I love spending time in the kitchen), and such talk is never out of place in any setting (ya gotta stop fishing to eat and drink once in a while, right?), I've never really been a great fan of hard liquors. I don't mind that talk of various single malt whiskies crops up here from time to time, but it doesn't resonate for me. Beer, I know something about, having sampled more than my share and even brewed a bunch of my own for a few years, but I can't drink it anymore.....gives me a headache every time. Wine, I like, but I've found that I'm not interested enough to spend the time and money needed to learn about it in depth. Besides, the ten dollar a box stuff works well enough for my daily needs with supper. No, my concern is really more for the other end of the day. For years now (many years) I have been dissatisfied with the pitiful trash that passes for coffee in this country. I've always known, of course, that something can be done about it but never got around to doing it. That just changed. One day last week, Becky stopped by with some freshly roasted and ground Colombian caranavi. It got lost under a heap of something or other for a day or two and then I brewed up a pot when it turned up again. Hey, this is GOOD! Becky says talk to my dad, he sent me the roaster and a bunch of coffee for Christmas. Becky's father has been roasting his own coffee for 25 or 30 years. He'd talked to me about it a couple of years ago but at that time it just sounded like too much to get into in a life already crowded with many other things. But now I'd tasted the result. It was time to talk to Rodger again. So, Friday night I talked to him for about an hour and ended up going he http://coffeeproject.com/index.html and ordering a roaster and a couple of pounds of coffee, Ethiopian harrar and something listed just as Bolivian shade grown organic (I wanted the caranavi but apparently it's only sold bundled with other things in some sort of sampler). This morning I roasted and brewed my first pot of the harrar. WOW! ![]() Anyway, I've done a bit of research on line in the past couple of days....there is a ton of stuff about coffee. But I'm wondering if anyone else here has played with this and if so, I'd appreciate hearing about your experiences, preferences, etc. If not, any true coffee lover should definitely look into the do it yourself thing. Wolfgang |
#136
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![]() "Wolfgang" wrote in message ... So, while I appreciate discussions of the fine points and the arcana of food and beverages (it's probably no secret that I love spending time in the kitchen), and such talk is never out of place in any setting (ya gotta stop fishing to eat and drink once in a while, right?), I've never really been a great fan of hard liquors. I don't mind that talk of various single malt whiskies crops up here from time to time, but it doesn't resonate for me. Beer, I know something about, having sampled more than my share and even brewed a bunch of my own for a few years, but I can't drink it anymore.....gives me a headache every time. Wine, I like, but I've found that I'm not interested enough to spend the time and money needed to learn about it in depth. Besides, the ten dollar a box stuff works well enough for my daily needs with supper. No, my concern is really more for the other end of the day. For years now (many years) I have been dissatisfied with the pitiful trash that passes for coffee in this country. I've always known, of course, that something can be done about it but never got around to doing it. That just changed. One day last week, Becky stopped by with some freshly roasted and ground Colombian caranavi. It got lost under a heap of something or other for a day or two and then I brewed up a pot when it turned up again. Hey, this is GOOD! Becky says talk to my dad, he sent me the roaster and a bunch of coffee for Christmas. Becky's father has been roasting his own coffee for 25 or 30 years. He'd talked to me about it a couple of years ago but at that time it just sounded like too much to get into in a life already crowded with many other things. But now I'd tasted the result. It was time to talk to Rodger again. So, Friday night I talked to him for about an hour and ended up going he http://coffeeproject.com/index.html and ordering a roaster and a couple of pounds of coffee, Ethiopian harrar and something listed just as Bolivian shade grown organic (I wanted the caranavi but apparently it's only sold bundled with other things in some sort of sampler). This morning I roasted and brewed my first pot of the harrar. WOW! ![]() Anyway, I've done a bit of research on line in the past couple of days....there is a ton of stuff about coffee. But I'm wondering if anyone else here has played with this and if so, I'd appreciate hearing about your experiences, preferences, etc. If not, any true coffee lover should definitely look into the do it yourself thing. Wolfgang Coffee ? ...................you sissy........ |
#137
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![]() Edmond Dantes wrote in message ... "Wolfgang" wrote in message ... So, while I appreciate discussions of the fine points and the arcana of food and beverages (it's probably no secret that I love spending time in the kitchen), and such talk is never out of place in any setting (ya gotta stop fishing to eat and drink once in a while, right?), I've never really been a great fan of hard liquors. I don't mind that talk of various single malt whiskies crops up here from time to time, but it doesn't resonate for me. Beer, I know something about, having sampled more than my share and even brewed a bunch of my own for a few years, but I can't drink it anymore.....gives me a headache every time. Wine, I like, but I've found that I'm not interested enough to spend the time and money needed to learn about it in depth. Besides, the ten dollar a box stuff works well enough for my daily needs with supper. No, my concern is really more for the other end of the day. For years now (many years) I have been dissatisfied with the pitiful trash that passes for coffee in this country. I've always known, of course, that something can be done about it but never got around to doing it. That just changed. One day last week, Becky stopped by with some freshly roasted and ground Colombian caranavi. It got lost under a heap of something or other for a day or two and then I brewed up a pot when it turned up again. Hey, this is GOOD! Becky says talk to my dad, he sent me the roaster and a bunch of coffee for Christmas. Becky's father has been roasting his own coffee for 25 or 30 years. He'd talked to me about it a couple of years ago but at that time it just sounded like too much to get into in a life already crowded with many other things. But now I'd tasted the result. It was time to talk to Rodger again. So, Friday night I talked to him for about an hour and ended up going he http://coffeeproject.com/index.html and ordering a roaster and a couple of pounds of coffee, Ethiopian harrar and something listed just as Bolivian shade grown organic (I wanted the caranavi but apparently it's only sold bundled with other things in some sort of sampler). This morning I roasted and brewed my first pot of the harrar. WOW! ![]() Anyway, I've done a bit of research on line in the past couple of days....there is a ton of stuff about coffee. But I'm wondering if anyone else here has played with this and if so, I'd appreciate hearing about your experiences, preferences, etc. If not, any true coffee lover should definitely look into the do it yourself thing. Wolfgang Coffee ? ...................you sissy........ Dumbass. Wolfgang |
#138
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On Jan 11, 10:10 am, Steve wrote:
It's not steam pressure that forces the water through the grounds but air pressure. Air will expand at temps far lower than 212 degrees. Now it's getting fun ;-) Let's say initial air temp is 20C, heated to 90C. That's 70C delta. Expansion should be proportional to temp, relative to abs. zero. So each added degree would add 1/(273+20) fraction of volume. My calculator says 70/293 is about .24, or 1/4. So it would take four cups of air to push one cup water out by the time 90C is reached. Do those contraptions have that much air space? As Wolfgang noted, this expansion doesn't wait until the water is 90C, it happens all the way up the temp scale, so I'd think it'd be "better" to wait and let the steam pressure push the water. Jon. |
#139
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A lot of folks have use mail order...3-day air.
Unless you're ordering kilos of Columbian blend through Juan Valdez. Hmm, kilos of Columbian by 3-day air? No wonder Starbucks makes such huge profits. Frank Reid |
#140
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![]() wrote in message ... On Jan 11, 10:10 am, Steve wrote: It's not steam pressure that forces the water through the grounds but air pressure. Air will expand at temps far lower than 212 degrees. Now it's getting fun ;-) Let's say initial air temp is 20C, heated to 90C. That's 70C delta. Expansion should be proportional to temp, relative to abs. zero. So each added degree would add 1/(273+20) fraction of volume. My calculator says 70/293 is about .24, or 1/4. So it would take four cups of air to push one cup water out by the time 90C is reached. Do those contraptions have that much air space? Yeah, that sounded a little fishy to me, too. As Wolfgang noted, this expansion doesn't wait until the water is 90C, it happens all the way up the temp scale, so I'd think it'd be "better" to wait and let the steam pressure push the water. Agreed, bearing in mind that Wolfgang also noted that one doesn't need to bring the full volume (or anything near that much) to boiling temp, and that pressure is relieved by the water moving through and out of the system, thereby mooting any supposed notable increase in the boiling temperature. Wolfgang |
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