OutIn Fino Portable Electric Coffee Grinder, Adjustable Coffee Bean Grinder with 28 Precise Grind Setting,One-Button Burr Coffee Grinder with Fast‑Charge Battery, Auto‑Stop & Clog‑Protection

I use it to grind for espresso and have had no problems. I enjoy one coffee a day and the grinder lasts for days and days without needing to be recharged. If I was being really picky I'd say the wheel to adjust the grind size could be easily moved when closing the hopper, if you're not careful, you also have to give it a little knock or shake and start it up again to make sure everything has been ground. It does also take quite a long time to finish grinding but if you set that going first and get on with your other prep then you're not waiting on it to finish anyway. As the title suggests, I'm really happy with this grinder and would recommend it.

Better battery life that i thought. Very fancy to look at, very efficient and easy to use.

It grinds perfect for the home brew. It looks durable and very simple to use.

The coffee grinder is really nice,well made and good quality too. It came in a well presented box,and well packed. The grinder is easy to use and setup the grinding mode by twisting the ring.Comes with power cable, Allen key and a nice velvet bag for easy storage or transportation. Works fine,just add to coffee beans on top and you will have the perfect coffee ready in no time. This grinder is not noisy at all, it take more time to grind all the beans compared with a corded one but the benefit of this is that being cordless you can take it anywhere.Easy to clean but to be honest is not too much to clean 😊. I willl say this grinder is a bit overpriced compared with other similar products. Overall,happy with my purchase. Thanks

This product is simply perfect for espresso lovers. It's arguably the best portable electric coffee grinder. I returned it, but that doesn't mean it's bad. I returned it because it was heavy and not suitable for backpacking. However, it's perfect for anyone traveling by car, bike, motorcycle, or anything else.

Great grinder slightly slow but well built, works well with Outin nano coffee machine

I travel a lot and work away in remote locations, this is a game changer for me. Watched a few YouTube videos about it and how to operate it and I can honestly say it’s changed my remote working coffee breaks.

This coffee grinder arrived so beautifully packed, it was just a lovely experience uncovering each layer. It is described as portable, but this is quite a heavy machine and so despite the plush drawstring carry bag, I shan't be moving it further than between the shelf and the counter. The machine has a sleek yet rustic design and appearance. Despite the weight, it is much quieter than my previous, much lighter grinder. It is good that the turning dial actually has the recommended settings for different types of coffee brewing. However, there is no clear indication of how to tell which setting has been selected. I have guessed that the light indicator also serves as a marker for the setting. This coffee grinder has a fantastic grinding mechanism. The "Fine" setting produced powder-fine coffee. The coarseness and fine-ness of the different bands of settings was very clear. I am happy with the performance. One design flaw was detected during the first use. While mildly twisting the top (the "Contractable Bean Hopper") to open it after having closed it to grind some coffee beans, it came off in my hand, much to my surprise. This section is quite thin and of indeterminate material, but it feels plastic, in stark contrast to the rest of the body. The instructions in the booklet are clear enough. However, the battery level indicator descriptions are mystifying for a product which costs £189.99. There is no digital display, which would have been helpful and indeed expected at this price point. Instead, the slim light changes colour, but to me, this is not of much use, because you only know that the battery is either under 20%, greater than or equal to 20% or greater than or equal to 30%. There is a huge gulf between 30% and 100%, and far too wide a range for users to guess how much power remains. They won't know whether it is at 50% or 80%, etc., so this means that one has to recharge it immediately after each use to be on the safe side. This also does not make it terribly portable. The included accessories are good, I particularly like the blower/brush combination. You have to use the brush after every single use because there is ring of ground coffee all around the bottom each time. It is unfortunate though, that the dosing cup is plastic - this looks out of place in comparison to the rest of the unit. I would give this coffee grinder 4 stars for its performance, but the lack of a useful battery indicator and that easily dislodged hopper in combination with the high price led to a final assessment of 3 stars.