Maestro MR-457
 | Outdated Product A simple and convenient-to-use electric coffee grinder, this is a compact burr-type device that falls into the category of portable solutions from the 2025 model year. It is equipped with a built-in lithium-ion battery with a capacity of 1800 mAh, making this model independent of stationary power sources. Despite a modest power of 5 W, the Maestro MR-457 coffee grinder provides quality grinding due to the use of ceramic burrs, which are not only more durable than their metal counterparts but also do not heat up during operation, preserving the natural aroma and flavor properties of the beans. The bean compartment volume is 30 grams, which is enough for preparing 2-3 servings of a fragrant beverage. An important advantage of the model is the adjustable grind setting with an impressive 40 ad...justment positions, allowing for coarse grinds for a cezve or French press, as well as fine ones for espresso machines. The device features a removable cup for collecting ground coffee, significantly simplifying the cleaning process. The package includes a USB cable for charging the battery. E-Catalog uses affiliate links compensated by our partners. |
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A simple and convenient-to-use electric coffee grinder, this is a compact burr-type device that falls into the category of portable solutions from the 2025 model year. It is equipped with a built-in lithium-ion battery with a capacity of 1800 mAh, making this model independent of stationary power sources. Despite a modest power of 5 W, the Maestro MR-457 coffee grinder provides quality grinding due to the use of ceramic burrs, which are not only more durable than their metal counterparts but also do not heat up during operation, preserving the natural aroma and flavor properties of the beans.
The bean compartment volume is 30 grams, which is enough for preparing 2-3 servings of a fragrant beverage. An important advantage of the model is the adjustable grind setting with an impressive 40 adjustment positions, allowing for coarse grinds for a cezve or French press, as well as fine ones for espresso machines. The device features a removable cup for collecting ground coffee, significantly simplifying the cleaning process. The package includes a USB cable for charging the battery.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Maestro 2026 - new arrivals, bestsellers, and the most relevant models Maestro.
Cordless and Compact
The key feature of the Maestro coffee grinder is its built-in battery, allowing the device to be used away from outlets or during power outages. The model comes with a 1800 mAh lithium-ion battery, is comparatively compact compared to most competitors, and has a USB-C port for recharging. As a result, the Maestro MR-457 is well-suited for travel and even outdoor trips where the battery can be easily recharged with a power bank.
Affordable, Yet with Quality Grinding
The coffee grinder features ceramic burrs, which are more commonly found in expensive models. Despite this, the cost of the device remains at an entry-level price point. The grinding system delivers satisfactory results — the beans are ground fairly evenly, which will satisfy most coffee enthusiasts. Additionally, operational reliability is enhanced by built-in overheat protection.
The user can adjust the grind size: a special ring allows choosing from one of 40 options, including settings for moka pot, pour-over, French press, and other brewing methods.
The drawbacks of the model include a compact bean container with a capacity of 30 g, which is enough for a maximum of three cups of coffee in one go. Additionally, a noted con is the long charging time of about 3.5 hours and relatively coarse grind on the finest setting — suitable for espresso but not intended for brewing coffee in a cezve.