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GSI Lexan JavaGrind

by GSI
16 customer reviews

Available from these sellers.
  • Material: Polycarbonate
  • Adjustable, conical burr, ceramic coffee grinder unlocks all of the flavor of your favorite beans better than blade-style grinders
  • Sturdy alloy handle nests and locks in place for easy packing
  • Stepped design allows grinder to seat directly on top of GSI Outdoors JavaPresses and most round containers
  • Locking cover and protective dust cap keeps everything clean
1 used from $15.00

Product Description

Designed in the best FDA approved polycarbonate out there, the GSI Outdoors Lexan JavaGrind is ultra bomber proof. Lightweight and cut resistant, this GSI Lexan resin won't stain or hold flavors. So you can use and reuse it for years to come. This hand-crank grinder features a locking cover and protective dust cap that keeps everything clean.

Product Details

  • Item Weight: 1.1 pounds
  • Shipping Weight: 1.2 pounds
  • ASIN: B000E0GA1Y
  • Average Customer Review: 3.2 out of 5 stars  See all reviews (16 customer reviews)
  • Amazon Best Sellers Rank: #688,975 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

61 of 61 people found the following review helpful By J. Near on March 27, 2007
I bought this grinder for use with a small french press when camping and visiting friends. The ceramic burrs are adjustable and seem to produce a consistent grind: there is not too much sediment in the bottom of the cup. When using freshly-roasted coffee, the results are not too acidic and have a very smooth finish. Even my friends that do drink coffee tend to be impressed (I always share!).

The handle is easy to use and the fact that beans can be stored in the grinder during transport is handy. The idea behind the grinder is that it should be set on top of your french press for use, but I have found this to be the largest problem with the grinder. There is no handle to hold with your other hand as you grind, and nothing to keep the grinder itself from moving! I usually end up holding onto the top of the grinder with my free hand, but this is difficult as that hand gets in the way of the rotating grinding handle. Furthermore, keeping the grinder stationary requires a lot of downwards pressure; I have already broken one french press by pushing down too hard, and so I no longer grind directly into the press. I recommend the cups that come free when you order pizza -- they seem to be just the right size, and they're impossible to break. Using a cup that's just the right size (and plastic!) to grind into makes this grinder a whole lot easier to use.

This grinder is supposedly designed to work with the french press from the same company. The body does have an indentation for where the press's handle would sit, and the fact that they fit together has the potential to keep the grinder from slipping around and requiring so much downwards pressure to use. Additionally, the press from this company is made of lexan, and so should be very difficult to break.
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28 of 28 people found the following review helpful By Park E. Hays on January 14, 2008
The grinding mechanism consists of two unglazed ceramic cones that fit together. The casting of the ceramic is fairly course--so edges aren't very sharp.
The domed top is made from plastic and provides very little support to the shaft. Since the shaft is not centered or supported on the bottom the inner cone can move--up and down when the dome flexes, side-to-side when the shaft "swings". Of course, the shaft always swings because the crank is offset (as it must be). The upshot: inconsistent grind.

Credit where it's due: the mechanism for adjusting the grind is the best I've seen on any grinder, even Zassenhaus. The wing nut is keyed to the crank, and the crank slides onto the shaft, locking the wing nut in position--the grind won't change at all. Too bad the setting is pretty much meaningless because of the shaft wander.

The fact that it folds up compactly is nice, though not valuable to me. I also agree with other users who found this mill hard to hold. I found it so frustrating that I made a pine "pillow block" so that I could clamp the grinder in place, and then clamp the grinder to the table--which makes it much more pleasant to use.

One final design flaw is that the cup which holds the coffee does not slope enough toward the burrs. When I'm grinding the last 10 or so beans I have to stick my finger in and push the beans into the mill.
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26 of 26 people found the following review helpful By T. Smith on March 4, 2010
Verified Purchase
Bought this a few years ago for backpacking with coffee. I'm one of those snobs who avoids coffee ground more than fifteen minutes in advance and not roasted within the same 10 day period and needs fresh coffee and tea wherever I go. This grinder is surprisingly consistent in grind - much more so than the peppermill style Turkish grinders that are, in turn, far more consistent than a blade grinder. I recommend grinding a reference sample of coffee with a shop burr grinder and adjusting the wing nut to match the grind and mark the tines with a permanent pen in case it is loosened for some reason in travel.

Other reviewers have mentioned some difficulty with this, and it really would be nice to have a handle on one side but as it stands it is still very functional and easy to pack. I actually load this with the first day's worth of beans and seal the whole apparatus in a large Ziploc freezer bag. The grinding arm easily slides off and back on upside down for compact storage. I highly recommend practicing with it (and washing & drying thoroughly) before going out in the world with it. If you have not used manual coffee mills before, you may be surprised by the amount of time and effort is required to grind a single pot's worth of coffee. I find the physical upper-body light and repetitive exertion a refreshing beginning to a day of hiking but am grateful for my electric burr grinder when I get home.
Here are some suggestions:

- You should NOT use pressure to hold this in place! You will rapidly fatigue your wrist and forearm in a position that could cause later pain throughout the day and possibly even break the grinder or what you are grinding into.
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8 of 8 people found the following review helpful By Victor Lin on May 19, 2009
I was initially put off by comments on the web about how hard it was to use this unit, but it's actually not bad at all. Yes, the saucer shape is very wide and hard to grab, but if you keep the sliding door open you've suddenly got a nice surface to grab onto. Yes, the whole combination of grinder + receiving vessel can get wobbly if the fit isn't perfect but this can be overcome. I use this with a Jetboil PCS, which this does NOT fit flush on, but it's extremely easy to use if you sit down and squeeze the Jetboil between your legs to keep it stable as you grind.

Other reviews also state that the black plastic top is too flexible, leading to hard and inconsistent grinding, but this is not an issue if you secure the receiving vessel between your legs to keep everything stable. In fact, the flexibility is a GOOD thing because pushing down on it allows easier cleaning of the ceramic burr.

The grind is pretty consistent (much more consistent and "coffee dust"-free than electric ones) and makes great coffee. The feeding mechanism uses gravity and the beans feed incredibly well into it. The grinding action is also very smooth, easy, and quick - I can grind enough coffee for half a 1L Nalgene in about 20 seconds.

Yes, I would definitely recommend this. I only wish that they made a more compact version for people who don't need that big saucer shape to hold multiple days worth of coffee. Then it would be easier to hold and grind - simply grind it like you do a pepper mill. I actually use this at home as my only coffee grinder because it's the best product out there for french presses - electric blade grinders don't have a consistent enough grind for french presses and home electric burr grinders are REALLY expensive. Plus having an electric contraption means it won't work in the wilderness, which I plan to use the GSI in.
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