Manual Coffee Grinder.

a manual coffee grinder, a portable device designed for grinding fresh coffee beans by hand. 

Key features and aspects of this type of grinder include:

• Conical Burr Grinder: It uses a conical burr mechanism (often ceramic or stainless steel) which crushes coffee beans to a consistent size, unlike blade grinders that chop them, ensuring better flavor extraction.
• Adjustable Grind Settings: Manual grinders typically offer adjustable settings, allowing you to control the coarseness of the grind to suit various brewing methods like espresso, pour-over, French press, or cold brew.
• Portability and Design: Many manual grinders are compact and lightweight, making them ideal for travel, camping, or use in small spaces like offices.
• Quiet Operation: They generally produce less noise compared to electric grinders.
• Ease of Use and Cleaning: While requiring manual effort, they are typically designed for comfortable handling and can be disassembled for easy cleaning.
• Durability: Models with stainless steel or ceramic burrs and sturdy construction are designed for longevity.