Dual Cutter Manual Coffee Grinder with Highly Nitrogen Steel Conical Burr,Hand Coffee Bean Grinder Maker Adjustable Coarseness,Portable Efficiency Grinding, Magnet Catch Cup Capacity 35g

The innovative idea of double grinding or regrinding coffee has been implemented in Wonplug Dual Cutter Manual Coffee Grinder, and, in my subjective experience, it produces a cup of higher quality compared to standard grinders.Actually, grounding coffee twice in this grinder - very roughly first and then as needed (espresso grind, for example) - improves taste of a cup by adding more sweetness, more balance between sour and bitter tones and better taste complexity with improved clarity.This grinder is capable of grinding coffee for all coffee drinks - from plunger and drip brewing to espresso and turkish.I would recommend this grinder to anyone who values high quality cup of coffee.

The media could not be loaded. *Update: April 20, 2023:I have now had this grinder for a little less than three months. While I still think the grind quality is very good, this grinder is still basically a prototype. The handle of the grinder broke off after pretty light use. I have not abused the grinder in any way and the handle literally just broke off during normal use. The seller says that it should be possible to just reattach the handle but no matter what I do the handle keeps coming off the shaft making it virtually impossible to use the grinder comfortably. For the price of this grinder, this really should not be happening. I have grinders that cost a fraction of the price that I have used for years without issue. Another thing I did not not note in the first review is that the magnet strength of this grinder is rather weak. It is usually not an issue, I will occasionally bump the catch cup while grinding and it has come loose and fallen spilling grounds everywhere. While the grind quality is great, the user interface is pretty terrible and I am unsure of the relative durability of the grinder.Initial Review:First of all, this is thing is a really good grinder. Despite the fact that the one I received looking used, it seems to grind very evenly and the coffee it helps produce is very good. It is possible to get good results for both espresso and filter coffee. The build quality is also truly excellent, it is incredibly well machined and robust. However, there are a few quirks that might be a deal breaker for those interested in upgrading their grinder or in a side grade to their favorite.The most obvious thing is that it has opposite or left hand threading. While I got used to this instantly and it does not bother me, it should be clearly written in the description of the product. What is more bothersome for me is that it is a MESSY grinder. A lot of grounds get stuck to the adjustment mechanism and you have to brush them off to avoid a lot of accumulation on the grind adjustment knob. In addition, the magnetic catch cup has a huge lip which makes it difficult to get all of the grinds out of it. I am assuming they did this to fit standard portafilters and the aeropress, but it makes it difficult to get all of the grinds out without using a brush. While most of this is remedied by taping the body of the grinder and the bottom of the catch cup, it is really difficult to do this without getting grinds all over the place. Even when I am careful and use the aeropress funnel, small grinds end up everywhere. You have to be pretty meticulous to avoid this.Another issue is the adjustment mechanism. There are a ton of stepped clicks and it is very difficult to read the very small numbered indicators that tell you in what click range you are in. There should be a zero indicator somewhere on the body of the grinder to tell you where in the range you are. This is especially the case if you go between filter and espresso brewing because the easiest way to tell is bringing the adjustment knob all the way in again, but with well over 100 steps of adjustment this is a chore if you are doing it repeatedly.Lastly, while the dual burr system does seem to do a good job of making grinding easier, the bottom burr is relatively small. This means that while it does not take a lot of effort or time to grind, it is not as efficient as a single burr design with a larger burr. Espresso still takes about 1 minutes and 20 seconds and for aeropress it takes about 40 seconds. Not bad at all but certainly not the quickest I've seen or used.While I will most likely return this because of all of those drawbacks, it is an excellent grinder in terms of sheer grinding capability and build quality. It's main issue is that at retail price, close to $300, I could not recommend this over something like the K line of the 1zpresso or a Kinu. However, if you can catch it on sale closer to around $200 then it becomes a more interesting proposition, but even then it has a lot of competition.TL;DR: I had really high hopes for this dual burr design and while it has a lot of things to like, it is let down by some user interface issues and design choices. If they improved on the catch cup design, the adjustment mechanism, and widened the hopper a little, this grinder could probably compete with just about any manual grinder IMO. The photos show how much ground coffee gets stuck in the adjustment mechanism and catch cup. Again, you can clear this up a bit with tapping the body and bottom of the cup but there still quite a bit that you have to clean out with the provided brush.

I paid $40 USD for this grinder. My unit was manufactured in June 2021 and isn't their newest version.It came with a silicone/rubber cap instead of the plastic one pictured on this page.It has the same burr geometry as the Comandante c40, except they are reverse threaded. The weight of the burr set is similar to other stainless steel burr sets of the same size.It has the Red Clix style threading which offers ~140 clicks from open to zero. The click system feels premium and it is easy to count how many clicks you are at. The alignment of the burr set seems precise despite the plastic housing. Although it is hard to know for certain. The internal structure is not symmetrical so you cannot spin the body while holding the handle to test for balance.The instructions are lacking and don't have any recommended ranges for methods of brewing.The grinding motion and click system both operate in reverse from other grinders. Clockwise to loosen, counter clockwise to tighten/grind.The hopper can hold ~30 grams of beans, however, the glass cup can only hold ~22 grams of coffee grinds before it starts to compact.The handle and knob are both solid.The plastic body seems sturdy but I would still be afraid to drop it given the heft of the internal parts.The top seems to be modeled after the Kinu line, however, the top does not funnel into the hopper as well as the Kinu. It merely has a small lip where the lid can sit.Adding beans is clumsy with the lid on, while removing the lid to add the beans required unscrewing the handle completely and then screwing it back on. I can stretch the rubber top completely over the handle to get it out of the way, but it feels like it is close to tearing if I do so. Without the lid on beans can popcorn out of the grinder even when holding it on a level surface while grinding and you can't grind at an angle.I've found that 1-3 whole beans can get stuck between the burrs and the internal structure.The plastic body has some texture/grit to it, however, I still find it tricky to grip onto firmly while grinding.