The materials that are used to construct grinders, such as wood, metal or acrylic, are important both to the performance and the overall durability. The type of material used, how that material can affect the performance, and the overall quality of that type of material is reviewed when comparing them to other competing products operating in the same market.
It is important to consider how grinders are constructed, how many pieces the grinder has and the ease of use by the end user. Parts should fit tight or loosely depending on how they are used and the overall construction should be consistent among multiples of the same product being sold to consumers.
Performance refers to how well a grinder functions or processes herb compared to the buyer's expectation. A buyer's expectation is generally shaped by both their history with using similar products and any guarantees of performance or expectations being set by the product manufacturer. Guarantees and promises are taken into consideration when measuring performance.
Grinders should be easy to maintain for the end user. Ease of maintenance can be achieved through ensuring all components are easy to take apart, put back together and easy to clean without the use of cumbersome tools.
While value is something that can be difficult to measure, it is something that can be compared between similar products. During consideration of different grinders, the value the average buyer will see compared to how much they have financially invested into the product is reviewed.