This article contains the FAQs for the CT640 Series Ninja® Intelli-Sense™ Blender DUO. This supports the following product SKUs CT640, CT640C and CT641 .

What are Smart Programs?

These pre-set programs combine a unique set of pulsing, pausing, and blending patterns to take the guesswork out of drink and meal making

Can the Ninja Intelli-Sense System pulverize seeds?

Yes. For best results when making a smoothie or drink, select the EXTRACT button and let the program run until it completes.

How does the Ninja Intelli-Sense Kitchen System differ from other Ninja products?

Intuitive touchscreen is easy to clean and durable for all your kitchen tasks, Intelli-Sense Technology changes the program selection based on the container that is attached for less hassle and guesswork.

Smart Programs:

  • Total Crushing Pitcher: Smoothie, Frozen Drink, Ice Cream, Snow Cone
  • Single-Serve Cup: Smoothie, Extract, Refresher, Dressing
  • Precision Processor Bowl: Puree, Dips, Dough, Chop
Does the Ninja Intelli-Sense Kitchen System have microwave-safe parts?

No, there are no microwave-safe parts.

What are the containers made of?

All containers are made of BPA-free Tritan plastic.

Are the blades rustproof?

Yes, the blades are made with a high-quality stainless steel that is rustproof and dishwasher safe.

How much wattage does the Ninja Intelli-Sense Kitchen System use?

1200 watts

What kind of blades does the Ninja Intelli-Sense Kitchen System have?

It has stainless steel blades.

How long is the cord?

Approximately 2.5 feet (30 inches).

What is the warranty on the Ninja Intelli-Sense Kitchen System?

It has a 1-year limited warranty.

Which accessories and attachments are compatible with the Ninja Intelli-Sense Kitchen System?

24 oz. Single-Serve Cup Kit, 24 oz. Double-Walled To-Go Tumbler

What is the maximum capacity of the Pitcher?

It has a maximum liquid capacity of 64 ounces for room temperature or cold ingredients or liquids.

Can I blend hot liquids or make soup in my Ninja Intelli-Sense Kitchen System?

No, the Ninja Intelli-Sense Kitchen System is not designed for hot blending.

Does the Ninja Intelli-Sense Kitchen System come with a recipe book?

All configurations come with a 35-Recipe Inspiration Guide.

How do I assemble the Pitcher?

To assemble, place the pitcher on your motor base so it forms a diamond. When you are facing the front of the blender, the pitcher handle should be on the right side of the base or facing you for the pitcher to sit correctly. Once the pitcher is on the base, twist clockwise or to the left to form a square and lock the pitcher in place. The handle will now be aligned with the front right corner or front left corner of the base.

When using the Single-Serve Cup, why don't all the Smart Programs appear?

Certain Smart Programs are compatible with each container. You are able to select only those programs that are illuminated once a certain container is locked in place on the base.

What is the EXTRACT program used for?

The EXTRACT program is ideal for hard, leafy, or fibrous whole fruits and vegetables, including their skins, seeds, and stems. EXTRACT is best used when making smoothies, ice pops, or morning green shots with these ingredients.

What is the REFRESHER program used for?

Use the REFRESHER program to add natural veggie, fruit, and herb flavors to your water.

What is the SNOW CONE program used for?

Use the SNOW CONE program to pulverize ice or frozen fruit into frozen creations like snow cones, granitas, or slushies.

What is the DRESSING program used for?

Use DRESSING to create homemade salad dressings, marinades, and sauces.

What is the DIPS program used for?

Use the DIPS program to create dips and sides with more texture like mashed potatoes and spinach and artichoke dip. 

How do the manual programs work?

Use LOW, HIGH, and PULSE when you want more control over the outcome of your recipe. PULSE will only operate when the button is pressed. Touch the button quickly for short pulses. LOW and HIGH will run continuously until they are stopped.

How do I pause or stop a program?

To pause a blending cycle, press again on the same program button you initially selected. You can pause the program at any time and the digital timer will hold its countdown until the cycle is resumed. To stop a program entirely, press STOP.

How do I turn the unit on?

Connect the motor base to a power source and the power symbol will illuminate. Once illuminated, press power. If a container is attached, you will see all of the available Smart Programs. If there is no container attached, the display will show "-:--" until a container is properly assembled on the base.

Why are ingredients chopped too finely or are too watery?

The ingredients have been over-processed. Use PULSE mode for controlled processing.

Why can't I create snow from solid ice?

Do not use ice that has been sitting out or has started to melt. Use ice straight from the freezer. Start with a few pulses and then go to a continuous blending cycle. For best results, use the SNOW CONE program in the pitcher.

What does a "-:--" message mean?

The container is not installed on the motor base properly. For your safety, the unit will be able to be turned on only when the container is properly installed. Please refer to the assembly pages of the instruction manual for assistance.

You get a blinking "Err" message.

Your motor has overheated or your unit has been running for more than 2 minutes within a brief period of time. If this occurs, simply unplug the unit, remove the container, and allow unit to cool before restarting.

How can I clean my Ninja Intelli-Sense Kitchen System?
  • Hand-Washing: Wash containers, lids, and blade assemblies in warm, soapy water. When washing the blade assemblies, use a dishwashing utensil with a handle to avoid direct hand contact with the blades. Handle blade assemblies with care to avoid contact with sharp edges. Rinse and air-dry thoroughly.
  • Dishwasher: The containers, lids, and blade assemblies are all dishwasher safe. The lid, blade assemblies are tip rack dishwasher safe. Ensure the blade assembles are removed from the containers before placing in the dishwasher.
  • Motor Base Touchscreen: Turn off the unit and unplug the motor base before cleaning. Wipe motor base with a clean, damp cloth. Clean the touchscreen with a soft cloth, such as microfiber, to prevent scratching. To remove residue from the control panel, you may use an all-purpose cleaner. 

DO NOT use abrasive cloths/pads/brushes to clean the motor base or control panel, as this can dull or scratch the surface.

What are the dimensions of the Ninja Intelli-Sense Kitchen System?

7.0 x 9.8 x 17.6 (inches)

When using the Single-Serve Cup, why don't all the Smart Programs appear?

Certain Smart Programs are compatible with each container. You are able to select only those programs that are illuminated once a certain container is locked in place on the motor base.

Can I blend hot ingredients or liquid in the Single-Serve Cup?

No. DO NOT blend hot ingredients or liquids in the Single-Serve Cup. Doing so may cause excessive pressure buildup, resulting in the risk of the user being burned.

When using the Total Crushing Pitcher, why don't all the Smart Programs appear?

Certain Smart Programs are compatible with each container. You are able to select only those programs that are illuminated once a certain container is locked in place on the motor base.

How do I assemble the Pitcher?

To assemble, place the pitcher on your motor base so it forms a diamond. When you are facing the front of the blender, the pitcher handle should be on the right side of the base or facing you for the pitcher to sit correctly. Once the pitcher is on the motor base, twist clockwise or to the left to form a square and lock the pitcher in place. The handle will now be aligned with the front right corner or front left corner of the motor base.

How do I install the lid on the Pitcher?

Place the lid on the container by aligning the arrow on the lid corner with the matching arrow on the pitcher. Press down and push handle down to lock in place. Place the lid on the container by aligning the arrow on the lid corner with the matching arrow on the pitcher. Press down and push handle down to lock in place.

How do I remove the lid from the Pitcher?

To remove the lid, press the "release" button on the top of the lid to unlock the handle. Lift up.

When using the Precision Processor Bowl, why don't all the Smart Programs appear?

Certain Smart Programs are compatible with each container. You are able to select only those programs that are illuminated once a certain container is locked in place on the motor base.

How do I install the lid on the Precision Processor Bowl?

Place the lid on the container by aligning the arrow on the lid corner with the matching arrow on the pitcher. Press down and push handle down to lock in place.

How do I remove the lid from the Precision Processor Bowl?

To remove the lid, press the "release" button on the top of the lid to unlock the handle. Lift up.

What are the two blade assemblies used for in the Precision Processor Bowl?

The all-black plastic blade assembly is the dough blade assembly and should be used only when making doughs, breads, and batters along with the DOUGH button. The other blade assembly is a chopping blade assembly, which is used for every other instance when using the Precision Processor.

How much dough can the Precision Processor make?

The Precision Processor can make up to 2 pounds of dough.

How do I install the lid on the Spiralizer?

Assemble the Feed Chute Lid on top of the Spiralizer Bowl. Turn the lid clockwise onto the Spiralizer Bowl, aligning the gray tabs on the lid with the front of the bowl. When the unit is connected to power and the container is correctly installed on to the motor base, the GO button will illuminate, indicating the unit is ready for use.

How do I remove the lid on the Spiralizer?

To remove the Feed Chute Lid, press the release button on the left side of the front tab, then twist the lid counterclockwise and lift up.

How can I tell which Blade Disc creates a specific noodle style?

The discs are color coded (Angel Hair: Yellow, Spaghetti: Red, Fettuccine: Green, Pappardelle: Orange, Ribbon: Blue) and can be referred to in your Recipe Inspiration Guide or your Quick Start Guide. Each Blade Disc is also labeled on the side of each disc.

What is the Collecting Bowl used for?

The Collecting Bowl makes it easy for you to transport your finished noodles to a pan or bowl once you are finished spiralizing.

Can I spiralize ingredients back-to-back?

Once you are finished spiralizing an ingredient, you must remove the leftover piece on the Blade Disc before continuing with another ingredient again.

Why did my unit turn on when cleaning the touchscreen?

The touchscreen sensitivity has been optimized to promote easy and intuitive use when powered on. To prevent accidental operation, turn off the unit and unplug the motor base before cleaning. Wipe motor base with a clean, damp cloth. Clean the touchscreen with a soft cloth, such as microfiber, to prevent scratching. To remove residue from the control panel, you may use an all-purpose cleaner.

DO NOT use abrasive cloths/pads/brushes to clean the motor base or control panel, as this can dull or scratch the surface.

Why isn't my touchscreen as sensitive as my other smart devices?

While the touchscreen is easily activated with a fingertip, it is highly recommended that you press firmly on the desired button for 1 second to ensure activation every time.

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