We read the best reviews of the Krups GX4100 at Amazon.com. We also read reviews at Cook's Illustrated, where a similar Krups grinder is pitted against nine other grinders and CoffeeGeek.com, a coffee enthusiasts' website where reviews tend to be long and detailed. Epinions didn't have enough reviews (just one) to help us round out the overall summary.
Overall, owners have good things to say about the Krups GX4100 Coffee, Herb & Spice Mill, which has not been professionally reviewed. This blade-style coffee grinder is slightly more expensive than its sibling, the Krups Fast Touch 203 (*est. $20), but it's sheathed in stainless steel and thus has a sleeker look. Reviews say this blade grinder is an excellent performer and can be pressed into service as a spice grinder. Performance-wise, it's comparable to the Fast Touch and owners say it's a cinch to clean. Note that inexpensive blade grinders work better for automatic drip coffee makers, where getting a fine grind is not important.
The 30 reviews posted at Amazon.com award the Krups GX4100 an average of 4 stars (out of 5). Some owners say it does a good job with coffee as well as spices, nuts and seeds, but others complain that it's messy and not as well made as other Krups grinders.
Review: Krups GX4100 Reviews, Contributors to Amazon.com
At CoffeeGeek.com, all Krups blade grinder reviews appear on a single page, so it's difficult to tell which model is being reviewed. Krups blade grinders receive an overall score of 7 (out of 10).
Review: Krups Blade Grinders Reviews, Contributors to CoffeeGeek.com
There weren't enough reviews at Epinions to round out our summary of the Krups GX4100. Just one reviewer has posted; the owner says the coffee grinder is compact and easy to use and gave it the highest rating of 5 out of 5.
Review: Krups GX4100 Reviews, Contributors to Epinions
4. Cook's Illustrated Magazine
Cook's Illustrated tests 10 under-$50 coffee grinders by grinding 2 ounces of coffee beans in each and brewing 40-ounce pots of coffee using automatic drip coffee makers. Although the Krups GX4100 is not tested, a similar model, the Krups Fast Touch 203 (*est. $20), is reviewed.
Review: Easing the Daily Grind, Editors of Cook's Illustrated, Nov. 2001