[Homeroast] aluminum for roasting

Ryan M. Ward silvercro_magnon at hotmail.com
Mon Apr 12 21:06:29 CDT 2010


How are those Stove top coffee makers? I have thought about getting one for some time. 

-- 
Ryan M. Ward

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**Note: This signature was placed here by me and is not automatically-generated-annoying-end-of-email-spam placed here by anyone other than myself. I am a Linux nut and am doing my part to support open source software and the Linux and Ubuntu communities by getting the word out with each email I send, I encourage you to do the same.




> Date: Mon, 12 Apr 2010 13:05:22 -0700
> From: theotherjo at gmail.com
> To: homeroast at lists.sweetmariascoffee.com
> Subject: Re: [Homeroast] aluminum for roasting
> 
> Ryan,
> This thread in getting deep into some science I also have little or next to
> no experience with.
> Now to include the coffee and coffee making back into this thread, when I
> made coffee with the stove top Al. Italian espresso makers years ago, I
> always wondered if coffee or the acid nature of it durning the brewing
> process could in some or anyway leach some of the Aluminum from the pot? Now
> I use and promote stainless versions I don't think about this anymore.
> At least I wasn't till this thread started.
> ;) Joe
> On Mon, Apr 12, 2010 at 12:23 PM, Ryan M. Ward <silvercro_magnon at hotmail.com
> > wrote:
> 
> >
> > I am not a medical person, and my chemistry background certainly does not
> > establish any sort of expertise. When I looked into the
> > Aluminium/Alzheimer's issue, the impression I got is that Aluminium,
> > although not the best thing for the body, does not enter the body easily.
> > The advice that I consistently saw not to cook highly acidic foods with
> > aluminium cookware(such as spaghetti sauce). I can tell you that the last
> > position that I read from the Alzheimer's association stated that the
> > hypothesis that Aluminum was a strong contributing factor leading to
> > Alzheimer's appeared unlikely. (Again, I am not a doctor and have NO
> > expertise on this, I am just a consumer passing along friendly information
> > that I have accumulated- please verify for yourself)
> >
> > Now, roasting-wise, what I would be concerned with is the "speed" at which
> > the metal heats up and cools down and how that plays into roasting
> > consistency. As I recall from memory, the specific heat of Aluminium is
> > pretty low which means that the your bowl will heat up quickly and cool down
> > quickly depending on the ambient temperature (Chemistry friends- please stop
> > me if I say something stupid). This is what I would consider.
> >
> > Now that I have commented on every technical subject that I am not an
> > expert in, do you have any numbers that need crunching?
> >
> > --
> > Ryan M. Ward
> >
> > *Note: This email was sent from a computer running Ubuntu Linux 9.10
> > (Karmic Koala)
> > http://www.ubuntu.com
> >
> > **Note: This signature was placed here by me and is not
> > automatically-generated-annoying-end-of-email-spam placed here by anyone
> > other than myself. I am a Linux nut and am doing my part to support open
> > source software and the Linux and Ubuntu communities by getting the word out
> > with each email I send, I encourage you to do the same.
> >
> >
> >
> >
> > > Date: Mon, 12 Apr 2010 11:18:40 -0700
> > > From: theotherjo at gmail.com
> > > To: homeroast at lists.sweetmariascoffee.com
> > > Subject: Re: [Homeroast] aluminum for roasting
> >  >
> > >  I remember the, what I think was inconclusive studies on this.
> > Technically
> > > speaking I believe Al is considered a heavy metal even though it sounds
> > like
> > > an oxymoron. If the metal can enter my system through what ever method. I
> > > will steer around using it. Remember the stove top little espresso
> > makers?
> > > They used to be made only of Al. Now many from Italy are Stainless.
> > > Although the Al ones are still sold. I used to look down inside at the
> > > decaying Al that looked like an oxidizing mineral decaying soup. Never
> > will
> > > I go back to and consume any amount of that questionable stuff. Give me
> > good
> > > Ole cast iron or stainless.
> > > Nice for building some things not food related.
> > > Don't mind my rambling memories. Give me a good cup of Joe and who knows
> > > what I will ramble on about.????????????? ;)
> > > On Mon, Apr 12, 2010 at 9:16 AM, Tom Ulmer <tom at transtate.us> wrote:
> > >
> > > > For a year or so I used an aluminum WhirlyPop to roast. Besides third
> > eye
> > > > development I've noticed no ill effects.
> > > >
> > > > I believe there was news a few years ago which attempted a correlation
> > of
> > > > aluminum levels in the body to Alzheimer's disease.
> > > >
> > > > -----Original Message-----
> > > > From: homeroast-bounces at lists.sweetmariascoffee.com
> > > > [mailto:homeroast-bounces at lists.sweetmariascoffee.com] On Behalf Of
> > john
> > > > Sent: Monday, April 12, 2010 10:36 AM
> > > > To: HomeRoast List
> > > > Subject: [Homeroast] aluminum for roasting
> > > >
> > > > does anyone know if aluminum is a safe metal to have in contact with
> > beans
> > > > at roast temperatures?  more specifically, i have an aluminum cookie
> > sheet
> > > > that i'd like to use as sheet metal for parts in fabricating a new
> > drum.
> > > > the drum is cast iron, but i'm thinking of using the aluminum as an
> > exit
> > > > door for the beans.
> > > >
> > > > however, if that's safe, it's got me thinking about using a turkey
> > frying
> > > > pot as a drum.  if it's ok for cookies, is it ok for coffee?  ...would
> > be
> > > > much higher temperatures.
> > > >
> > > > thanks,
> > > >
> > > > -john
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> 
> 
> -- 
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