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Ninja Master Prep (QB900B)

by Ninja
5,796 customer reviews
| 536 answered questions

List Price: $49.99
Price: $31.99 & FREE Shipping on orders over $35. Details
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400 Watts
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  • Quad blade technology has unique processing power for uniform cutting and ice crushing action
  • Blender function features large 48-ounce pitcher has easy pour spout and no slip bottom
  • 2-cup processor minces, dices, chops, blends and purees
  • Create, store, microwave and serve!
  • Includes a 48-ounce master prep pitchers and 16-ounce master prep bowl
  • Interchangeable 400 Watt Power Pod
  • Frozen Blending
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Frequently Bought Together

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  • Superfood Smoothies: 100 Delicious, Energizing & Nutrient-dense Recipes
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Style Name: 400 Watts

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Customer Rating 4 out of 5 stars (5795) 4 out of 5 stars (2388) 4 out of 5 stars (1580) 4 out of 5 stars (4171)
Price $31.99 $26.85 $24.99 $17.00
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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)

Product Details

Style Name: 400 Watts
Please click here for instruction steps [PDF]|Product Warranty: For warranty information about this product, please click here [PDF]
  • Product Dimensions: 11 x 12.2 x 7 inches ; 5.4 pounds
  • Shipping Weight: 5.2 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B003XU3C7M
  • Item model number: QB900B
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (5,796 customer reviews)
  • Amazon Best Sellers Rank: #78 in Kitchen & Dining (See Top 100 in Kitchen & Dining)
  • Product Warranty: For warranty information about this product, please click here [PDF]

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

1,632 of 1,701 people found the following review helpful By Rosemarie TOP 1000 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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1,121 of 1,171 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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894 of 951 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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173 of 182 people found the following review helpful By L. Jones on October 19, 2013
Style Name: Professional Verified Purchase
I was looking for something that would be perfect for making green smoothies and, because I am analytical, did exhaustive research to find just the right one. I've read enough to come to the conclusion that the Vitamix Blender is probably the best blender out there, but I didn't want to spend $500 on a blender. My old blender still works, but it is old, clunky and heavy because of the thick glass bowl. I wasn't quite sure I would like the Ninja QB1004 since all the bowls are plastic, but I just wanted something that would chop things up really fine and make a great smoothie. Someone recommended the magic bullet, but it just didn't look big enough to me to really be able to whip things up to a frothy consistency. I couldn't be happier with the QB1004. 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. The longer I whip it up, the more frothy it becomes and the texture reminds me of a milk shake. What I also like is all I do to clean it is rinse it, put soap in the bowl and whip it for just a couple of seconds - no heavy glass bowl and no heavy base to deal with. I just let it air dry and it's ready for the next smoothie. I would definitely recommend the QB1004 for anyone looking for a great smoothie maker.
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Ninja Master Prep (QB900B)
This item: Ninja Master Prep (QB900B)
Price: $31.99
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