How to Sharpen Coffee Grinder Blades: things to know (2021)

If you’re a coffee drinker, there’s a good chance that you have used your coffee grinder for more than just grinding beans. You might also use it to grind spices or other ingredients.

If this is the case, then it’s important that you know how to sharpen coffee grinder blades. Otherwise, your blade won’t be as sharp and will make less tasty ground spices. So let’s take a look at how to do this step-by-step!

1. Signs Of A Dull Coffee Blade

There are a few signs that your blade is no longer effective. If you notice any of these things, it might be time to sharpen the blade:

– The ground spices or coffee come out clumped together instead of being fine and powdery.

– You have to force the grinder down when grinding any ingredient.

– The blade seems to be wobbling.

– Food doesn’t grind as well as it used to.

2. How To Sharpen A Coffee Grinder Blade – Perfectly

How to Sharpen Coffee Grinder Blades

1) Make sure the blades are dry before beginning work on them. When dealing with any type of metal, moisture can damage it or cause rusting so drying off the blade is very important! Use a cloth or paper towel if necessary but don’t leave the blade out in the open. If you need to dry them off, do so quickly and get them away from moisture.

2) Put on protective glasses because there’s a chance that metal pieces can go flying when grinding blades are reshaped.

3) Remove the coffee grinder from its base by unscrewing it or popping it off. For some grinders, you’ll need to remove the top cap before you can access the blades. Look at your coffee grinder’s instructions or online videos for more information on how to do this.

4) Use a flathead screwdriver to pry off any screws that are keeping the blade in place. This is just another way of taking the blade out of its housing. You can also bend any metal to pop them off too.

5) Put your blades on a flat surface and begin grinding against it using another smaller tool with a rough surface. Like sandpaper, this will sharpen the edges on each side of the blade so that they’re not as jagged and dull.

6) For the sharpening process to be complete, repeat this step (steps 4 and 5) on both sides of the blade until you’re satisfied with how it looks!

As you can see, sharpening coffee grinder blades is pretty simple once you know how to do it. Since there are many different types of grinders, you may have to use different tools for this process.

For example, some grinders will have more screws on them than others so it’s important that you know what type of grinder you have before beginning work. This way, you’ll be better prepared if your coffee grinder is acting up again soon!

3. Tips In Maintaining Your Coffee Grinder

How to Sharpen Coffee Grinder Blades

If maintaining your coffee grinder is key to getting the best results, here are some tips you can try out:

1) Use blades that aren’t too bulky. If they’re too big, you’ll have a hard time grinding small pieces of spice. Work on finding the right blade size instead of giving up and buying new ones.

2) Buy blades that aren’t too expensive. If the blade isn’t very expensive, there’s a chance you won’t be afraid to reshape it if necessary.

3) Be sure to clean the coffee grinder after each use. This is because leftover spices can cause other ingredients not to grind right or worse – become rancid! Cleaning your coffee grinder is very important!

So if you’re someone who doesn’t use their grinder much, sharpening the blades isn’t necessary. But for those of you that love to experiment with new recipes or like to make your own spice mixes, it’s important that you know how to sharpen coffee grinder blades. Have fun experimenting with your spices!

4. Does the coffee grinder affect the taste of coffee?

The answer is no. Coffee grinders are tools that help us to provide the best coffee experience for our customers.

There’s nothing more frustrating than brewing a hot cup of fresh brewed coffee only to find grainy grounds in your cup! Grinding coffee beans properly ensures that your customer gets the freshest tasting cup of coffee possible on every brew!

5. Difference Between Burrs Coffee Grinder And Blade Coffee Grinders?

The difference between burr coffee grinders and blade coffee grinders is that in a burr machine the beans are ground by two revolving abrasive surfaces, while in a blade machine the blade chops or smashes the beans into pieces.

The quality of taste for the espresso when using these machines will be different mainly because of this reason. Burr machines usually produce more even sized grounds than blades, which in turn give you better saturation in your espresso shots.

Blades on the other hand give you less heat than burrs so it makes it easier to extract complex flavors out of your beans since there is no heat generation with blades during grinding process.

Also when using blades one needs to be careful about what type of grinder they are buying, since many blade grinders are inefficient and can burn beans during the grinding process, which in turn will affect the taste of your final product.

6. What Is The Ideal Grind For A Coffee?

Grinding coffee is one of the most crucial elements of making a good cup of coffee. If you are using an espresso machine then it is imperative that your grind size is correct because if you don’t get it right, this will affect the taste and flavor of the beverage.

There are many different types of coffees in the world but all are ground differently for different machines. However there is a universal grind size that is used by most specialty coffee shops and is known as the ‘drip’ coarseness; it can be adjusted to fit with most brewing methods.

It is important to note that many burr grinders come with specific settings that automatically change the grind size depending on what type of beans are used.

7. What are the most common types of grinder?

How to Sharpen Coffee Grinder Blades

There are two different types of grinders that are used worldwide, Blade Grinders and Burr Grinders. Each of these is best suited towards certain types of coffee beans and each have their own advantages over the other.

A blade grinder uses a high speed spinning blade to cut up your coffee beans into small pieces. These types of grinders are very convenient and quick, but these blades can often heat up the beans which in turn affects the taste of your final product. Burr’s on the other hand use two revolving abrasive surfaces to grind down your coffee bean.

Burr machines are best suited for espresso because they produce more even sized grounds which in turn ensure that the water extracts all of the flavors from your coffee. Since they are less likely to cause burning these grinders are preferred for specialty beans.

8. How often should you clean a coffee grinder?

This will depend on how and what type of beans you’re grinding. If you are grinding hard, oily beans then it is recommended that you clean your burr grinder every 4-5 days to ensure that no residue builds up inside the device. While blade grinders can be cleaned every day to ensure that the blades are clean and free of residue.


How often do you grind?
We typically use our grinder every other day for darker roasts and every few days for lighter roasts.

What type of coffee beans do you grind?
Mostly all of our beans are high quality, single origin coffees from Colombia, Brazil and Kenya. We tend to lean towards brighter citrus flavors in our beans with high acidity.

What kind of grinder do you use?
We are currently using a Baratza Encore Burr Grinder paired with a Hario Skerton Ceramic Coffee Mill.

How much coffee would you say you go through in a week?
I’d say we go through around 20 lbs of coffee a week…holy shit!

Further reading:
How to Grind Coffee Beans
Conical vs Flat Burr Grinder


There are a variety of coffee grinders available to suit your needs. Grind one’s own beans and enjoy the freshness from these machines. Sharpening coffee grinder blades is also necessary if you want to get the best out of your spices or coffee!

Coffee grinder, coffee grinder blades , choosing the right machine for you.

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