Can You Grind Coffee Beans in a Blender? Yes, but Here's How

A blender can grind coffee beans, but the grind is uneven and best for coarse methods like French press.

Use short pulses and shake the blender to improve consistency.
For espresso and pour-over, invest in a burr grinder for uniform grind size.

How to Grind Coffee Beans in a Blender

Start with a clean, dry blender. Add a small batch of beans, no more than half full. Use the pulse function in short bursts, about one second each. Shake the blender between pulses to redistribute the beans. Check the grind size frequently to avoid over-grinding. Stop when you reach the desired consistency.

What Grind Size Can a Blender Achieve?

A blender typically produces a coarse to medium grind. Fine grinds are difficult because blades chop unevenly. You'll get a mix of fine powder and larger chunks. This works for French press or cold brew. For pour-over, the inconsistency may cause bitter or weak coffee. Espresso requires a very fine, uniform grind that a blender cannot deliver.

Blender vs. Coffee Grinder: Which Is Better?

Dedicated coffee grinders, especially burr grinders, provide uniform particle size. Blade grinders, like most blenders, chop beans randomly, leading to uneven extraction. Burr grinders allow you to set exact grind sizes. They also generate less heat, preserving flavor. If you brew coffee daily, a grinder is worth the investment.

Best Use Cases for Blender-Ground Coffee

Blender-ground coffee suits French press, cold brew, and percolators. These methods tolerate a coarser, uneven grind. It's also handy when you're traveling or lack a grinder. For espresso, Turkish coffee, or pour-over, skip the blender. Those methods need precise grind consistency for proper extraction.

Common Mistakes When Grinding Coffee in a Blender

Overfilling the blender leads to uneven grinding. Grinding too long creates heat that can scorch the beans. Not shaking the blender leaves large chunks at the top. Using a wet blender can cause clumping. Always grind in short pulses and let the blender rest between bursts.

Common questions

Can I use a blender to grind coffee beans for espresso?

No, a blender cannot produce the fine, uniform grind needed for espresso. It will create an inconsistent grind that leads to under-extraction or over-extraction. Use a burr grinder for espresso.

Is it safe to grind coffee beans in a blender?

Yes, it's safe if you use short pulses and don't overheat the motor. Avoid running the blender continuously for more than 30 seconds. Let it cool down between batches.

What is the best blender setting for grinding coffee?

Use the pulse setting or the lowest speed. Short pulses give you more control. High speeds create heat and uneven grinding.

Can I grind coffee beans in a NutriBullet?

Yes, a NutriBullet can grind coffee beans, but it works best for small batches. Use short pulses and shake the cup between pulses. The grind will be coarser and less uniform than a dedicated grinder.

How long should I blend coffee beans?

Blend in 1-second pulses for about 10 to 15 seconds total. Check the grind after each few pulses. Stop when you reach the desired size. Over-blending makes the coffee bitter.

Why is my blender-ground coffee bitter?

Bitter coffee often comes from over-extraction due to fine particles. Blenders produce a mix of fine and coarse grounds. The fine particles extract too quickly, making the brew bitter. Use a coarser grind and shorter steep time.

Can I grind coffee beans in a blender without a grinder?

Yes, a blender is a common substitute for a coffee grinder. It works for coarse grinds. For best results, use a clean, dry blender and pulse in short bursts.

Does blending coffee beans damage the blender?

Grinding coffee beans can dull the blades over time. It also puts strain on the motor. Use short pulses to minimize wear. A dedicated coffee grinder is gentler on your appliance.