Tea & Coffee 05/02 - Looks Aren’t the Only Thing that Matters (#)

„A clear example of this, is the wide spread use and sale of nozzle evacuation and inert gassing machines with prefabricated valve bags. These machines are being sold by some of the major bag suppliers, and although such sales may not be malicious, they actually do great harm to the roasted beans so packaged.” Sivetz, however, did not explain what this harm was before continuing, “Equal damage is incurred by other major bag manufacturers when they do not strongly recommend the attainment of the highest vacuums possible [lowest oxygen levels] in the use of their vacuum chamber style machines. It becomes the burden of the roaster/packager to learn what is right, as well as to know what kind of machines and at what performance levels he must be at. He also needs oxygen analyzing instruments to verify what kind of oxygen levels he is achieving, and very few roast coffee packagers own such analytical instruments.”“

http://www.teaandcoffee.net/0502/special.htm - Cached

The Coffees of Indonesia; Sumatra (#)

„Specially prepared Sumatras used to be a very, very difficult thing to find. Michael Sivetz, who basically invented the concept of air roasting that many home roaster's employ, has a section in his book Coffee Quality that bemoans the poor preparation of "Grade 1" Sumatras. But it is also true that the inclusion of unattractive coffee in some of those Mandhelings gives them their "oomph!" Take them out and you can actually have an overly-prepped Sumatra, a cup without the exotic "forest floor" earthiness and deep husky flavors that define the origin character of this coffee. That's the danger of the Triple Picks.“

http://www.sweetmarias.com/ coffee.indonesia.sumatra.html - Cached

Fall Educational Conference4 - National Coffee Association (#)

„Prolonging freshness of roasted coffee is a perennial industry challenge. Michael Sivetz, noted author of the industry text “Coffee Technology,” will discuss the historic struggle to inhibit coffee staling (oxidation) in packaged environments, and will explain the current methods of preservation   vs. what is possible with the latest machinery, analytical methods and marketing. A comparison is made between the quality offerings in the canned coffee market and the whole bean valve bag market, as well as the growing demand for higher quality fresh roasts and improved brewing methods.“

http://www.ncausa.org/public/pages/ index.cfm?pageid=225 - Cached

View topic - Sumatra Mandheling DP-SUPER PREP: - Coffee Forum (#)

„Notes: Specially prepared Sumatras used to be a very, very difficult thing to find. Michael Sivetz, who basically invented the concept of air roasting that many home roaster's employ, has a section in his book Coffee Quality that bemoans the poor preparation of "Grade 1" Sumatras. But it is also true that the inclusion of unattractive coffee in some of those Mandhelings gives them their "oomph!" Take them out and you can actually have an overly-prepped Sumatra, a cup without the exotic "forest floor" earthiness and deep husky flavors that define the origin character of this coffee. That's the danger of the Triple Picks.“

http://www.coffeeforums.com/viewtopic.php?p=668 - Cached

Amazon.com: Books: Coffee Technology (#)

„Coffee Technology was written in 1963, it contains all the wealth of experience gathered by Mr. Sivetz, a chemical engineer and coffee consultant, while designing, installing, and starting up coffe processing plants all over the world. The subjects covered range from drying the grain, psychrometric charts, roasting coffee, percolation, aromatizing soluble coffee, packaging roast coffee. All subjects are covered in depth in a "Theory and Practice" format where the process is analized with formulas for pressure drop, temperature and pressure changes, mass flow and later, experimental results are provided.“

http://www.amazon.com/exec/obidos/tg/detail/-/ 0870552694?v=glance - Cached

Tea & Coffee 11/02 - Choosing A Roasting Machine? The Experts Speak (Cont) (#)

„If you don't beat 'em, buy 'em. Mike Sivetz (retired General Foods Chemist) made a huge contribution to demonstrate you can roast in small batches with hand made simple heating and ventilating parts that can make better coffee than his ex-employer General Foods, and he was right. Mike proved that fluidized roasting could make it so simple that anybody could learn to roast and roast great quality. Neotec in Germany was on the same page and they proved you could use this same fluidized process to go for really big poundage and do it with repeated control so the industry began changing.“

http://www.teaandcoffee.net/1102/special2.htm - Cached

View topic - Air roasted or drum roasted? - Coffee Forum (#)

„I'm not claiming that fluid bed is superior to drum roasting but I respectfully contend that it's not fair to disparage it until you leanr more about it. Sivetz is in fact the leading producer of small to mid sized commercial fluid bed roasters and it's worth learning about them and sampling a few coffees produced by an experienced roaster with a properly modified and controlled Sivetz. I doubt that it will change your mind but it may alter your opinion in some ways.“

http://www.coffeeforums.com/ viewtopic.php?p=6776 - Cached

Tea & Coffee 05/03 - Getting the Skinny on Sample Roasters: Part I (#)

„I believe that the realities of the coffee business are that any of the machines in this survey are better than none. That’s pretty rough talk to some of the larger machine manufacturers, who refer to each other’s machines as toys, much less a sub $200 “corn popper.” Nevertheless, just as Sivetz coffee roasters are serious machines, so is each of the machines reviewed here. I still think we’re something short of a quartz watch-style quantum leap forward. But, for further development, there has to first be a market.“

http://www.teaandcoffee.net/0503/coffee.htm - Cached

View topic - Air roasted or drum roasted? - Coffee Forum (#)

„Different strokes for different folks. My sincere desire is to develop some ways to truly control roast time and profile with the Sivetz and then get some experience under my belt with a commercial drum roaster. perhaps then I can make some valid A/B comparisons. Until then I'm thankful that I have a chance to work in the coffee business in some small way - it's very satisfying even though I still have my "day job".“

http://www.coffeeforums.com/ viewtopic.php?t=579&start=15 - Cached

Roasting with a Heat Gun: A Top-Down Approach (INeedCoffee.com) (#)

„Roasting with a heat gun is another variation of the fluid bed method used in most home roasting appliances. I'm told a Sivetz sample roaster actually uses a heat gun to blow air up through beans held in a metal tube. The method I'm going to talk about is throw some beans into a bowl and blast them with a heat gun. It sounds like something you would see on Tool Time but it really works.“

http://www.ineedcoffee.com/04/heatgun/ - Cached

CoffeeGeek - Coffee: Home Roasting Talk, Looking at prices to start up a coffee shop - (#)

„Both only roast around a lb at a time for around the same amount of time, and the savings is $500.00 a unit. If it was my decision I would either try to replicate on or buy the Sivetz. I wouldn't really trust something on a more commercial (steady all-day use) unless it was designed to do so. Still it has opened my eyes to the fact that I can do a lb at a time for alot less money.“

http://www.coffeegeek.com/forums/coffee/homeroast/ 98684 - Cached

Oven Roasting Method (#)

„Call 1-800-589-8960. The Sivetz modified popper and modified heat gun range from $100 to $185, available only from Sivetz Coffee Inc., 503-753-9713. Unimax roasting devices are supposed to be out on the market agian, sometime or other... it was a sound roaster but we lost confidence in the company.“

http://www.sweetmarias.com/othermethod.html - Cached

Coffee Chemistry: Acidity (#)

„The pH of a coffee has been found to correlate with the perceived acidity of a coffee by Pangborn, Sivetz and Desrosier, and Griffin and Blauch; whereas Voilley et al. suggests that titratable acidity produces a better correlation to perceived acidity.“

http://www.coffeeresearch.org/science/ sourmain.htm - Cached

The Coffee Review - the world's leading coffee buying guide (#)

„Sivitz Roaster.  Type of coffee roaster named after inventor Michael Sivetz. Also known by the generic terms Fluid Bed Roaster, Fluidized Bed Roaster, and Air Roaster, A roasting apparatus that works much like a giant popcorn popper, utilizing a column of forced hot air to simultaneously agitate and roast green coffee beans. “

http://www.coffeereview.com/ glossary.cfm?alpha=s - Cached

Café Forum | New Jersey Coffee Companies (#)

„From the 60's a working coffee roasterie and whole leaf teas walk-in/out back alley store. Our 1950 piston Gaggia and 1974 Sivetz roaster produce the best coffees. Don't expect fast service as the sign reads "We Specialize In Super Slow Service". There's hardly room to walk because it's 1500 sq ft of stuff in 450 sq ft of fun.“

http://www.lucidcafe.com/cafebystate/ njforum.html - Cached

It's All About Coffee (#)

„Anyone who's been to Sivetz, in an old church building on the corner of Southwest Fourth Street and Adams Avenue in downtown Corvallis, knows it's not your typical java joint. You can usually get a cup of coffee there, but they don't have baristas pulling espresso shots and mixing them with syrups and steamed milk.“

http://www.aboutcoffee.net/2004/.../ mike-sivetz-honored-for-bringing-world.html - Cached

It's All About Coffee (#)

„Ths shop is small, about the size of your living room, and is about half filled with his 1974 Sivetz roaster. There's not much room to sit or stand, since the roaster and bags of coffee fill most of the floor space. He uses a beautiful 1950 Gaggia hand pump espresso machine, and he really knows how to use it.“

http://www.aboutcoffee.net/ 2004_04_18_bcearc.html - Cached

Tea & Coffee 12/03 - 2003 People of the Year (#)

„A combination of the Kaiser and Smith fluid bed experiences resulted in a new style of fluid bed roaster, patented in 1975, and subsequently licensed to Neuhaus Neotec in Germany. Since 1980, Sivetz has manufactured various sizes of smaller electric and larger gas fired roasters.“

http://www.teaandcoffee.net/1203/special.htm - Cached

CoffeeGeek - Espresso: Espresso Blends, Any Timor Maubesse fans out there? (#)

„We cupped the East Timor in a comparison air roast against drum roast and the air roasted showed a slight astringency in cupping. That would be a Sivetz 1/4 bag and a 25 lb batch San Franciscan.I use a bbq drum, very similiar to the San Francisan, well, maybe not.“

http://www.coffeegeek.com/forums/espresso/blends/ 106391 - Cached

CoffeeGeek - SCAA's Conference & Exhibition in Atlanta a Hit with More than 7,500 Attendees (#)

„---Lifetime Achievement Award - Michael Sivetz, author of two well-respected books, including “Coffee Technology” and “Coffee Quality.” Sivetz has more than 50 years experience in coffee roasting and science.“

http://www.coffeegeek.com/resources/pressreleases/ scaamay192004 - Cached

Tea & Coffee 06/04 - People News (#)

„Lifetime Achievement Award - Michael Sivetz, author of two well-respected books, including “Coffee Technology” and “Coffee Quality.” Sivetz has more than 50 years experience in coffee roasting and science.“

http://www.teaandcoffee.net/0604/people.htm - Cached

View topic - Trying to locate a type of coffee - Coffee Forum (#)

„it is called Kopi Luwak. It is coffee cherries eaten by the Sivetz cat and then pooped out. Coffee beans are picked out and washed and roasted.It goes for about $400 a pound NOT because it tastes so darned good but because it is wacky, weird and rare.“

http://www.coffeeforums.com/ viewtopic.php?t=1378 - Cached

View topic - Air roasted or drum roasted? - Coffee Forum (#)

„I have never worked on a Sivetz roaster and cannot say a thing about if it is good or not. If he developed it from a popcorn popper or not and what he made of it, cant comment on that.“

http://www.coffeeforums.com/ viewtopic.php?t=579&start=0 - Cached