Blade coffee grinder has a spinning blade, which chops the coffee beans into small particles. The blade grinders can be used for cafetiere coffee grind, filter coffee grind or pour-over. The advantage of blade grinders is the lower price point and compact size.

Burr coffee grinder uses two revolving abrasive surfaces (known as burrs) to grind the beans into a uniform particle size. Burr grinders produce a more uniformly-sized particle than blade grinders, producing a more consistent result. The burr grinder ideal choice if you enjoy a quality shot of espresso.

1. Grind Size: If you only using one type of coffee brewer, e.g. filter coffee machine, you can buy a grinder that is made for this brewing method such as Wilfa Precision grinder. 
2. Budget: Coffee grinders come in a wide range of prices, so it's important to determine your budget beforehand. Blade grinders are generally more affordable, while burr grinders tend to be pricier. Consider how much you are willing to invest in a coffee grinder and look for options within your budget range.
3. Size: Coffee grinders come in various sizes, so consider the available space in your kitchen and choose a grinder that fits your needs. If you have limited counter space, a compact or handheld grinder may be a better option.
4. Features: Different coffee grinders offer various features that can enhance your coffee brewing experience. Some grinders, such as Melitta Calibra or Sage Smart have built in scales for precise measurements. Wilfa Uniform features App  Consider which features are important to you and choose a grinder that meets your requirements.
5. Consistency: A consistent grind size is essential to ensure even extraction and balanced flavours. By investing in a high-quality coffee grinder, you have control over the grind size, which directly impacts the taste and aroma of your coffee. 
6. Durability: Coffee grinders can take a beating, especially if you use them every day. Look for a grinder made from high-quality materials that can withstand regular use. Stainless steel burrs in grinders such as Fellow ODE Burr Grinder are known for their durability and longevity.
7. Noise level: Some coffee grinders can be quite noisy, which may be a concern if you live in a small space or have noise-sensitive family members or neighbours. Consider a grinder with a quieter motor if noise is a significant factor for you.
8. Ease of use and cleaning: Look for a grinder that is easy to use and clean. Features like a removable hopper and dishwasher-safe parts can make the cleaning process much more convenient.