About Open Box The open-box items are products returned under MiiCoffee Return & Exchange Promise. It looks brand new; includes original parts and box. It's used less than 30 days. It is fully tested and passed our certified process. We offer a full year warranty just like brand new products. Notice: the open box grinder might contains some grinds inside the grinding chamber due to our grinding test. MiiCoffee DF64 II (gen 2) single dose coffee grinder is complete re-design of the old populate DF64 grinder. It integrated the best elements from DF64V and DF83. The three seated position for the upper burr carrier integrated wave spring makes the grinding chamber  absolutely stable. At the same time it achieves minimal retention at the new level. The exit chute is equipped with plasma generator (aka Ionizer) that reduces static to non-existent. DF64 II now comes with custom made stainless steel 64mm flat burrs that deliver a fluffy grind with minimal clumping and consistent particle size distribution. The integrated Anti-popcorn cover help increase grinding speed. Version Info The current version is V2.3 This now comes with metal power button, cleaning brush and a rubber adapter (the same as included in DF54) to replace dosing ring. Features and Specifications 64 mm Grinding Custom made 64mm stainless steel flat burrs. Upgradable to SSP burrs for different coffee tastes. Plasma Generator (aka Ionizer) The exit chute is equipped with plasma generator (aka Ionizer). It reduces static to non-existent. Anti-Popcorn The integrated Anti-Popcorn ring prevents beans from jumping and helps increase grinding speed. 58mm Food Grade Aluminum Dosing Cup. Now comes with 58mm food grade aluminum dosing cup. While a portafilter can be used in the portafilter rest, it is best to use the dosing cup, especially if your portafilter isn’t 58mm. Dosing cup is made of food grade aluminum. True Zero Retention <0.1 gram. Even without bellow this grinder reaches almost zero retention. Blow-out funnel, with lid to completely empty the dead space. Stepless Adjustment. Redesigned dial is wrapped with chrome. The included metal indicator makes grind size so much easy to adjust. The adjustment is stepless. It can be dialed in for espresso with high precision. Bean Hopper Capacity: 30 grams without bellow, 80 grams with bellow Aluminum body with powder coating finishing  Weight 15lbs Motor 250W AC Input 100-120v/60Hz Size 10” L, 5” W, 12” H fits under any kitchen cabinet. One year warranty with MiiCoffee Comparison DF64 II DF54 DF64V General Works for a wide range of coffees and methods e.g. filter coffe and espresso Works for a wide range of coffees and methods e.g. filter coffe and espresso Works for a wide range of coffees and methods e.g. filter coffe and espresso Stock burrs Custom made 64mm stainless steel flat burrs Custom made 54mm stainless steel flat burrs DLC Coated 64mm Flat Burrs Motor AC 250W AC 150W DC Brushless 300W RPMs Fixed at 1400 Fixed at 1400 Variable from 600 to 1800 Size Normal Compact Compact What's in the box MiiCoffee DF64 II Single Dosing Coffee Grinder Bellow & Wood lid Metal Dosing Cup & Dosing Ring Manual More Upgrade to SSP Espresso Grinding 64mm Flat Burrs possible Easy-Clean Technology : The grinder can be opened for cleaning in a few simple steps without tools. Manual Download DF64 manual from grinder manual FAQ Read MiiCoffee DF64 FAQ