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Ninja Master Prep (QB900B)

by Ninja
| 297 answered questions

Price: $39.99 & FREE Shipping. Details
In Stock.
400 Watts
  • Interchangeable 400 Watt Power Pod
  • Frozen Blending
  • Perfect, Even Chopping
  • 2 conveniently sized jars
  • Anti-spill splashguard, easy-flip pour spout, and no slip base
  • 2-cup processor minces, dices, chops, blends and purees
  • Blender function features large 48-ounce pitcher has easy pour spout and no slip bottom
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40 new 3 used from $37.32

Frequently Bought Together

Ninja Master Prep (QB900B) + Superfood Smoothies: 100 Delicious, Energizing & Nutrient-dense Recipes
Price for both: $49.56

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Price $39.99$24.87$14.96$59.95
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Material Plastic Glass Metal man-made-material
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Special Offers and Product Promotions

Style Name: 400 Watts
  • Buy Used and Save: Buy a Used "Ninja Master Prep (QB900B)" and save 25% off the $49.99 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Product Details

Style Name: 400 Watts
  • Product Dimensions: 11 x 12.2 x 7 inches ; 5.4 pounds
  • Shipping Weight: 6 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B003XU3C7M
  • Item model number: QB900B
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (1,916 customer reviews)
  • Amazon Best Sellers Rank: #45 in Kitchen & Dining (See Top 100 in Kitchen & Dining)
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Product Description

Style Name: 400 Watts

Product Detail Overview
Ninja Master Prep with Patented Blade Technology

Put the power in the palm of your hand with the multi-talented Ninja Master Prep that crushes ice into snow in seconds, blends frozen fruits into creamy smoothies, and chops fresh ingredients evenly! Mince, dice, chop, blend, and puree for consistent results in the 16 oz (2 cup) chopper bowl and achieve perfect frozen blending in the 48 oz (6 cup) pitcher.

Pulse Technology

The interchangeable and ergonomic 400-watt power pod quickly switches between the 16-oz chopper bowl or 48-ounce pitcher for added versatility in the kitchen. The pod features a large one-touch pulsing button for ultimate control and consistent results.

Additional Features

Wide, no-slip bases and splashguards on the pitcher and chopper keep everything steady and clean. For added convenience, storage lids are included to keep your food fresh and all removable parts are dishwasher-safe.

Product Specs
  • Ninja Master Prep (QB900B)
  • Model - QB900B
  • Power - 400 Watts
  • Speeds - Pulse Technology
  • Pitcher Capacity - 48 oz. (6 cups)
  • Chopper Bowl Capacity - 16 oz. (2 cups)
  • Blade Technology - Stacked blade technology
  • Attachments - 4-blade and 6-blade set
  • Warranty - 1 Year
  • BPA Free
  • Dishwasher Safe
What's in the Box?
Ninja Master Prep Family
Express Chop Professional (NJ110GR)
Master Prep with 400 Watts (QB900B)
Master Prep with 450 Watts (QB1000)
Master Prep Professional(QB1004)
400 Watts
450 Watts
16 oz Chopper Bowl
48 oz Prep Pitcher
40 oz Prep Bowl
Chrome Button on Power Pod
Stacked Blade Technology
Storage Lid(s)


Customer Questions & Answers

Customer Reviews

And SO easy to clean.
Seacliff 7+1
I make green smoothies with ice, frozen bananas and other fruit and green veggies and the Ninja whips everything up into a smooth, frothy drink.
L. Jones
No lumps, worked very well.
Mark A.

Most Helpful Customer Reviews

875 of 893 people found the following review helpful By Woody TOP 500 REVIEWERVINE VOICE on May 23, 2011
Style Name: 400 Watts
This is my best little gadget and I have many. I wanted a Vita Mix since I can remember but it was too expensive while raising a family. I finally got one a few years ago, and it was a big disappointment. It was big, bulky and noisy and it did not do anything special. I used it all the time anyway to make smoothies, it was not much good for anything else.
Then I saw this Ninja on TV and thought it was a gimmick. I finally bought one since I started to hear many good things about it. And it was very affordable.
I can make my refried beans, chop onions and garlic, smoothies and sauces, but my favorite is the take frozen fruit and add some milk or coconut milk and turn it on, it is just about the best frozen dessert you can find, you may not even have to add sugar if your fruit is sweet enough.
I really love this Ninja I use it every day and sometimes twice or three times.
I am thinking of getting another one just in case this one breaks.
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594 of 619 people found the following review helpful By Amy Gurley on January 29, 2011
Style Name: Professional
I received this as a Christmas gift, and so far, I love it. I currently own a Krups blender, which was only about $30, and I was preparing to buy something like a Viking Blender - something that has a much more powerful motor system, for around $150, when my parents got me this. The great thing about it is that it's not necessarily a blender. I mean, it is by definition, but there's a couple key differences. Blenders have an inherent flaw of only blending what's at the bottom, especially when it's something thick like a shake. I always ended up with big chunks of ice cubes in my shakes even after 3 minutes of blending. The ice just never reached the bottom. Not a problem with this system. Even if the blender carafe didn't have 3 sets of blades, it already works better than a blender because the blades aren't embedded in the bottom of the carafe. Which allows me to point out another awesome thing - don't you hate trying to scoop out your drink from the recessed blade area of a blender? And sometimes it just never gets clean? Or it leaks if you don't screw it on tight enough, or, God forbid (this happened to me once) the whole carafe unscrews itself while it's blending and crap flies everywhere? I love the design of the Ninja system if for nothing else than just to avoid all of that!
I haven't used this system for too many things yet, but let me tell you one thing it excels at - chopping ice. And I don't mean those dinky ice cubes that you get in the plastic trays. If you know anything about silicone ice molds, it makes the cubes huge and square. I looked at the ice cubes, and then at the Ninja and thought "let's give this a whirl". Boy was I surprised. Not only did it pulverize the cubes, but it did so in less than 30 seconds.
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331 of 355 people found the following review helpful By Mark A. on July 15, 2011
Style Name: Professional Verified Purchase
I generally don't write reviews, but I have had an interesting enough time playing with my "Ninja" that I am writing this.

I bought the Ninja as a blender replacement and food chopper (more specifically, to dice and grind hard cheeses). I was initially going to order a Cuisinart/KitchenAid mini-prep or similar, or a blender/food processor from Cuisinart. However, after reading Consumer Reports' ratings of food choppers/food processors and blenders, I decided to give this a try - it has a lot of good ratings on Amazon, and CR rated it as the best food chopper and 2nd best blender (right after the $250 Vita-Mix, which I never even considered). The Cuisinart blender/food processor was ranked substantially lower, although it would have been able to slice and shred as well.

My needs - I am an amateur home cook, and I like to try different things. I do not cook in high volumes. I also try to limit what I have in my kitchen to tools that I enjoy and will use. Frankly, given that this is an infomercial device, I was wondering if it was a good option or not even after I ordered it.

Upon opening, it seems to be pretty well contsructed. No redundant tools, although for the smallest bowl/chopper, the blade assembly is in 2 parts rather than in 1 part. It takes about 5 seconds to assemble, so it's not a big deal, but I don't know why this is the case.

I have used it for several different tasks:

1) Blending a fresh mango/pineapple/coconut milk/milk smoothie in large blender. Quickly blended all ingredients into a smooth mixture. Am drinking this as I type. No chunks, lumps, or other problems. Definitely above my old blender, which is over 10 years old (Oster).
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310 of 355 people found the following review helpful By Jill P. on May 22, 2011
Style Name: Professional
After going through two low-end Oster blenders in as many years, I decided it was time to step it up a little. I love that the Ninja does not have a base - the thing that was the demise of my two previous blenders - and so there is no digging crud out of the bottom of the blender, and no awkward cluster of parts to take apart for cleaning and reassemble. It is SO easy to just rinse the blades, pitcher, and top, and leave them on the counter for tomorrow, or pop them in the dishwasher if I forget.

However, as a blender it's not so great. I use blenders for two main things: grinding flaxseed, and making smoothies. My old Oster blenders could grind flaxseed to a fine powder, and make perfectly creamy smoothies. So I was more than a little disappointed to discover that my fancy Ninja blender could only barely grind flaxseed, leaving many seeds still whole even after extended blending, and most others only half ground. The smoothies it makes are okay, but I am drinking one right now and I have to chew it. Not quite what I expected from a blender I thought would be better than my $20 Osters.
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