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Thoughts on a Bunn LPG grinder?
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GVDub
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Joined: 25 Jan 2008
Posts: 881
Location: Los Angeles, CA
Expertise: I live coffee

Espresso: Londinium I, Arrarex...
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Drip: Behmor Brazen, Abid Clever
Roaster: Behmor 1600+
Posted Sat Feb 15, 2014, 11:48pm
Subject: Re: Thoughts on a Bunn LPG grinder?
 

Thecoffeenerd Said:

If I kept 2 pounds of beans in the hopper, and use it daily at least one time in the morning for lets say a week, would that work?

Posted February 15, 2014 link

I do one 8-cup pot in the Brazen every day, so, at 72g of coffee per pot, that's just a hair over a pound a week. Generally speaking I'll roast twice a week (or roast once a week and stick half in the grinder and store the other half. The only time I'll ever run the grinder out is if I'm switching beans, otherwise, when it starts getting a little low, I'll pour in another couple of days worth from the stored beans. It's been working okay so far.
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Thecoffeenerd
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Posted Sun Feb 16, 2014, 2:38pm
Subject: Re: Thoughts on a Bunn LPG grinder?
 

That sounds good! I'd still love to buy the Bunn G1 HD for ease of use and not having to worry to much about keeping the beans stocked. Let me ask you this:

When the grinder grinds the very last of the beans will the grind become less consistent because of the less weigh on it? I can add more beans, but at some point i'm out of beans to add, and I don't wanna add beans from a different roast date. What should I do?

 
"You can't make good coffee, without good coffee" -Thecoffeenerd
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GVDub
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Joined: 25 Jan 2008
Posts: 881
Location: Los Angeles, CA
Expertise: I live coffee

Espresso: Londinium I, Arrarex...
Grinder: Gaggia MD85, Dienes Mokka,...
Drip: Behmor Brazen, Abid Clever
Roaster: Behmor 1600+
Posted Sun Feb 16, 2014, 6:25pm
Subject: Re: Thoughts on a Bunn LPG grinder?
 

My belief, and I'm sure I'll be taken to task by someone for this, but hey, they're my tastebuds, is that for drip, it's less critical than it would be for espresso. I don't notice an objectionable difference on the pot that empties out the hopper before changing beans. maybe a hair less complexity, maybe a hint of a different balance of fines in the brew, but it's still fine to me. I'm not one of those golden tongued types who can taste which side of a particular coffee tree a bean came from, and, frankly, am glad for that.
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boar_d_laze
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Joined: 21 Nov 2006
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Espresso: La Cimbali M21 DT/1 Junior...
Grinder: Ceado E92; "Bunnzilla"
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Roaster: USRC Sample Roaster
Posted Wed Feb 19, 2014, 11:57am
Subject: Re: Thoughts on a Bunn LPG grinder?
 

The Bunn G series is available with three different size hoppers.  The G1 is rated for 1lb, the G2 for 2lbs, and... well... I'll let you guess at the G3.  The fourth and final grinder in the series, the "Trifecta" comes with a fork instead of a bag holder, a dial with hash marks instead of pictoglyphs, and a 2lb hopper.  The Trifecta grinder is made to work seamlessly with (wait for it) Trifecta brewers.

G hoppers are nowhere close to airtight, and suck for storage.  Also, since the G series doesn't supply time or weight management, and they grind so fast, you'd waste a ton of coffee if you didn't single dose.

The LPG (stands for "low profile grinder") series however, does dose.  One "pull" fills a Bunn brewer's basket.    

Already said, but worth saying again:  The G series is auger fed and doesn't popcorn.  

You need to recalibrate the Bunn G series every time you take the dial off for cleaning, inspection, showing off to your friends, etc.  Bunn Gs are built to be disassembled and reassembled by idiots (like me).  All you need is a couple of flat-head screw drivers, the parts manual (it has the exploded diagrams, and is available without charge from the Bunn website) and the desire.

The Bunn G series offers a very wide range of grind size, from Turkish to press.  You'll have to dial in to get the best setting for your preferred method.  The pictures on the decal will get you close.  As a rule, most brew methods are as forgiving as horse shores and hand-grenades, you'll find a "click" on the 30 notch detent to suit whatever you're doing.  However, the grinder can operate between notches (not that you'll ever need to do it), and -- strictly speaking -- is "stepless."      

Recalibration is extremely simple and very consistent.  Following recalibration, you can return to your chosen setting for any given brew method with no need to dial-in again.    

The Bunnzilla modification consists of exchanging the Bunn burrs, for Ditting 803/804 burrs.  It is a  step up for quality in the cup.  As you'd expect, it's bound to be a bigger step for some types of brewing than for others.  I can't comment on paper-fliter drip.    

The Ditting burrs are rated for 15,000 lbs and cost $320, exclusive of shipping.  They require a little bit of machining (about $60 worth) to be fitted properly.  They need about 300lbs before full break-in, and -- unlike other Ditting burrs for bulk grinders -- cannot be resharpened.  

Stock Bunn replacement burrs cost $200.  

I put together a Bunnzilla because I'd started doing enough cupping that my little Breville Smart became a huge PITA.  I expected an improvement for brewing methods: Aeropress, Chemex + Kone, Espro press, "regular" French press, and vacuum; but not one so huge.  I've only rarely had coffee as good as the coffee we brew, never had better, and -- frankly -- am not sure I can even imagine better.    

Bunn does not sell parts directly to private consumers, but do sell to some businesses.  If you don't qualify, all Bunn parts for all Bunn machines -- going back for decades -- are available through a couple of US suppliers, at or below Bunn's prices.  Bunn will give you their names.

Hope this helps,
Rich
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calblacksmith
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calblacksmith
Joined: 25 Nov 2007
Posts: 8,038
Location: Riverside, Ca, U.S.A.
Expertise: I live coffee

Espresso: ECM Vene. A1, La Cimbali M32
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Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Thu Feb 20, 2014, 6:22am
Subject: Re: Thoughts on a Bunn LPG grinder?
 

I have a LPG and it is a nice grinder, dosed by time. It is not a grinder for on the fly adjustment but once set, esp in a commercial setting or with the same brewer making full pots all the time, it is very consistent and quick.

I bought mine at a used restaurant equipment sales/auction house, in great shape, 100% operational and 99+ condition for $125 It replaces my G9hd2, mostly just because of size.

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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