The answer to this question will depend on your personal preference and on the amount of time you are willing to spend grinding, measuring, and brewing coffees. Some prefer a very smooth consistency, while others prefer a more brittle consistency. You may also want to experiment with various types of coffees. For example, a light roast will produce a sweeter cup of coffee, to a dark roast will produce a stronger coffee that requires more attention when it comes to cleaning.
Espresso coffee beans are ground in a way that results in a very fine powder that can be applied with a rag or a spoon. This is referred to as espresso. You should not attempt to use a regular coffee bean grinder to grind your coffee. It will produce an inconsistent grind and an acidic coffee bean, which are unappealing. There are also coffee bean grinding machines on the market that will produce a very coarse dust. These are expensive and generally not the best option.
Custom grinders are designed for use with espresso beans and provide a very high quality product that produces a very bright, intense flavor. Although you may notice an imbalance in flavor from one day to another, many people find that they retain a consistent taste between each visit to their favorite coffee shop. There are some manufacturers that will customize the grind of their coffee as well. Some even have a program that automatically grinds the coffee beans to specific amounts every time the shop opens and closes.
Another option available to you is to purchase coffee beans that are pre-ground. These brands generally cost much less than espresso beans. However, you do sacrifice some of the quality and aroma of the coffee that you would get from freshly ground coffee beans. This type of coffee is great for those who are not fans of dealing with the mess that comes with freshly ground coffee beans. Also, these are a great option for people who live in rural areas where access to fresh coffee beans is not always readily available.
The final type of coffee grinder to consider purchasing is a coffee dehydrator. These devices are similar to saunas and grind your coffee fresh while it sits on a rack. Similar to a dehydrator, coffee beans dry out, which results in them losing their aroma and flavor. A coffee dehydrator is most often used for dried herbs, but there are some models designed specifically for coffee. Generally, these devices will provide some of the best flavored coffee on the market.
Dehydrators are not the only option for dehydrating your coffee. Other manufacturers have designed coffee chips that utilize a drier to extract the oils from your coffee beans. These are a great option for anyone who likes their coffee strong, but wants it to be more delicate than regular coffee. There are also several versions of coffee concentrate machines that are designed to add coffee concentrates to coffee without any additional heating.
Perhaps the best option for those who enjoy a rich, hearty cup of coffee is coffee percolators. These devices use water or milk in a basket suspended over a heating element. As the water or milk passes through the basket, it evaporates creating a steam of coffee. Unlike a traditional coffee bean coffee percolator, these units do not use high heat to achieve the resulting coffee. Due to this, they are typically less expensive and take less space to store.
The final type of coffee maker to consider is a French press. Although they are typically associated with coffee, these devices are suitable for all types of coffee. They generally work by placing coffee beans in the bottom and pouring hot water over the coffee. Although they may not be considered as smooth as some of the other models, they certainly provide a good amount of grounds in a very short period of time.