Master Prep™ Frozen Treat &

Master Prep™
Frozen Treat & Drink Maker
QB750 series
For Household Use Only
WARNING: To reduce the risk of
electric shock, this appliance has a
polarized plug (one blade is wider
than the other). This plug will fit into
a polarized outlet only one way. If
the plug does not fit fully into the
outlet, reverse the plug. If it still does
not fit, contact a qualified electrician
to install the proper outlet. DO NOT
modify the plug in any way.
1. Close supervision is necessary when any
appliance is used by or near children.
13. DO NOT expose jars to extreme
temperature changes.
2. To protect against electric shock, DO
NOT immerse cord, plug or any part of
the main unit in water or any other liquids.
14. DO NOT use jars if they are cracked or
3. DO NOT let cord hang over edge of table
or counter, or touch hot surfaces.
4. DO NOT operate any appliance with
a damaged cord or plug, or after the
appliance malfunctions, has been
dropped or damaged in any manner.
Return the appliance to EURO-PRO
Operating LLC for examination, repair or
5. Unplug appliance from outlet when not in
use and before cleaning.
6. DO NOT place on or near a hot gas or
electric burner.
7. The use of accessory attachments,
including canning jars not recommended
by EURO-PRO Operating LLC may cause
fire, electrical shock or risk of personal
8. Extreme caution must be used when
moving an appliance containing hot food,
water or other liquids.
9. Use this appliance on a stable work
surface away from water.
10.DO NOT remove the motor head before
the chopping blades have stopped
11. CAUTION! Chopping blades are sharp,
handle with care. When handling the
chopping blades, always hold by the
plastic shaft.
15. DO NOT use the appliance if chopping
blades are bent or damaged.
16. Avoid contact with moving parts at all
times. Keep hands, hair, clothing as well
as spatulas and other utensils away from
pitcher or chopping container during
operation to prevent risk of personal
injury and/or damage to the appliance.
17. Exercise extreme caution when blending
hot liquids.
18. Immediately release the On/Off pulse
button on the motor head in the event
that the appliance malfunctions during
NOTE: This unit has a short power supply
cord to reduce the risk resulting from
becoming entangled in or tripping over a
long cord. An extension cord may be used
if you are careful in its use:
1. The electrical rating of the extension
cord should be at least as great as the
electrical rating of the appliance.
2. An extension cord with the power cord
must be arranged so that it will not drape
over the countertop or tabletop where
they can be pulled on by children or
tripped over accidentally.
19. To reduce the risk of injury, NEVER
operate the appliance without the splash
guard in place; DO NOT try to defeat the
interlock mechanism; make sure that the
cutting blades are properly assembled
before operating the appliance.
20.DO NOT use outdoors.
21. DO NOT use appliance for other than
intended use.
22.DO NOT operate the appliance for more
than 15 seconds.
23.DO NOT operate the appliance empty.
24.If the appliance overheats, a thermal
switch will become activated and shut off
the motor. To reset, unplug the appliance
and let it cool down for approximately 10
minutes before using again.
12. DO NOT attempt to sharpen blades.
TOLL FREE: 1-800-798-7398
Getting Started
Thank you for
the Ninja™
Master Prep™
Frozen Treat
& Drink Maker.
Getting Started................................................................................. 5
Using the Master Prep™ Pitcher................................................... 6
Cleaning and Maintenance........................................................... 8
Troubleshooting Guide.................................................................12
The Ninja™ Master Prep™ is an
indispensable kitchen tool that is
perfect for blending, chopping, mixing
or pureeing when preparing your
favorite recipes. For best results,
be sure to carefully read all the
instructions contained in the manual
before using this appliance.
400 Watt Power Head
a On/Off Pulse Button
b Power Head
QB750 30
QB750RD 30
QB750SL 30
U.S. Patent No. 7,677,485
Voltage: 120V., 60Hz.
Power: 400 Watts
Pitcher Capacity: 1.42 L (48 ounces) (6 cups)
TOLL FREE: 1-800-798-7398
c Pouring Spout
d Pitcher Splash Guard
e Upper Blade (pitcher)
f Lower Blade (pitcher)
g Master Prep™ Pitcher with Non-Slip Base
h Spindle Pin
i Pitcher Storage Lid
The 400 watt power head operates on
120V., 60Hz. electrical power. NEVER
allow the power head to become wet
when plugged into an electrical outlet.
WARNING: The power head should
never be immersed in water or any
other liquid.
CAUTION: Make sure that the power
head is unplugged from the electrical
outlet and that the blades have stopped
turning before attaching or removing
any accessory.
CAUTION: Blades are sharp! Use
extreme caution when handling the
blades. Always hold them by the shaft.
Do not attempt to sharpen blades.
IMPORTANT: Never run the appliance
Using the Master Prep™ Pitcher
CAUTION: Blades are sharp! Use
extreme caution when handling the
blades. Always hold them by the shaft.
IMPORTANT: Never run the appliance
4 Add the ingredients to be processed
into the Master Prep™ pitcher.
IMPORTANT: Never add ingredients
into the Master Prep™ pitcher before
placing the blade assembly in first.
1 Place the Master Prep™ pitcher on a
clean, dry, level surface.
5 Place the pitcher splash guard onto the
top of the Master Prep™ pitcher. (fig. 3)
2 Holding the lower blade by the shaft,
place it onto the spindle pin inside the
Master Prep™ pitcher. (fig. 1)
6 Place the power head on top of the
pitcher splash guard making sure that
it is securely in place. (fig. 4) DO NOT
attempt to operate the appliance
without the safety splash guard in
3 Carefully insert the upper blade over
the lower blade rotating it until it locks
onto the lower blade. (fig. 2)
IMPORTANT: Always assemble the
blades inside the container.
WARNING: DO NOT try to place the
blades onto the power head and then
into the Master Prep™ pitcher.
TOLL FREE: 1-800-798-7398
7 To start the appliance, plug the power
cord into the electrical outlet, securely
hold power head while operating
and press on the on/off pulse button
located on the top of the power head.
(fig. 5)
8 Hold the Master Prep™ pitcher firmly
while depressing the on/off pulse
button to ensure the unit stays in place.
NOTE: DO NOT operate the appliance
continuously for more than 15 seconds
at a time.
9 To stop the appliance, remove your
fingers from the on/off pulse button.
10 In order to obtain a better quality of
chopping, operate the appliance by
using the “pulse” method.
11 Make sure that the blades have
stopped completely before removing
the power head.
12 If the ingredients stick to the side of
the Master Prep™ pitcher, stop the
appliance, remove the power head
and the splash guard. Use a spatula to
dislodge the pieces and then replace
the splash guard and the power head.
Continue processing.
13 Depending on the consistency of the
contents, use the pouring spout to
empty liquid contents.
14 For thicker consistencies, first remove
splash guard and blade assembly (by
its shaft), then empty contents of the
Master Prep™ pitcher.
Cleaning and Maintenance
Troubleshooting Guide
CAUTION: Make sure that the power
head is unplugged from power source
before inserting or removing any
attachment and before cleaning.
DO NOT immerse the power head into
water or any other liquid. Clean with a
damp sponge or cloth and wipe dry.
The Master Prep™ pitcher, storage
lid, Master Prep™ splash guard and
chopping blades are all dishwasher
safe. It is recommended to place the
storage lid and the chopping blades
on the top rack. Use extreme caution
when handling the chopping blades as
they are very sharp.
Check that the bottom of motor head is clean and
there is no food blocking connection when placing
on containers.
There is too much food in the container.
Motor doesn’t start
or blades don’t rotate.
Clean the Ninja™ Master Prep™ and all
parts before first use and immediately
after each use.
The unit has overheated. Unplug and wait
approximately 10 minutes before using again.
Make sure the splash guard is securely on container.
Make sure the power head is securely placed on
splash guard.
Check that the plug is securely inserted into the
electrical outlet.
Check fuse or breaker. Replace fuse/reset
Food is unevenly
Either you are chopping too much food at one
time, or the pieces are not small enough. Try
cutting the food into smaller pieces of even size
and processing smaller amounts per batch.
Food is chopped too
fine or is too watery.
The food has been over processed. Use brief
pulses or process for shorter time. Let blades
stop completely between pulses.
Food collects on
splash guard/safety
cover or on the sides
of the Master Prep™
You may be processing too much food. Turn the
machine off. When the blades stop rotating,
remove the power head and the splash guard.
Remove some of the food being processed.
You cannot achieve
snow from solid ice.
Do not use ice that has been sitting out or has
started to melt. Be sure to use short pulses in the
beginning to break up large pieces.
To purchase replacement parts, please visit our website:
or contact customer service: 1-800-798-7398.
TOLL FREE: 1-800-798-7398
QB750 series 30
EURO-PRO Operating LLC warrants this product to be free from material defects and
workmanship for a period of one (1) year from the date of purchase when utilized for normal
household use, subject to the following conditions, exclusions and exceptions.
The liability of EURO-PRO Operating LLC is limited solely to the cost of the repair or
replacement of the unit at our option. This Limited Warranty does not cover normal wear of
parts and does not apply to any unit that has been tampered with or used for commercial
purposes. This Limited Warranty does not cover damage caused by misuse, abuse, negligent
handling or damage due to faulty packaging or mishandling in transit. This Limited Warranty
does not cover damage or defects caused by or resulting from damages from shipping or
repairs, service or alteration to the product or any of its parts, which have been performed by
a repair person not authorized by EURO-PRO Operating LLC.
If your appliance fails to operate properly while in use under normal household conditions
within the Limited Warranty period, you may return the complete appliance and accessories
with proof of purchase and date, freight prepaid. For Customer Service support, call 1-800798-7398 or visit our website
If the appliance is found by EURO-PRO Operating LLC to be defective, in EURO-PRO
Operating LLC’s sole discretion, we will repair or replace it free of charge. Proof of purchase
date and a check made payable to EURO-PRO Operating LLC in the amount of $14.95 to
cover the cost of return shipping and handling must be included.*
This Limited Warranty is extended to the original purchaser of the unit and excludes all other
legal, implied and/or conventional warranties. The responsibility of EURO-PRO Operating
LLC if any, is limited to the specific obligations expressly assumed by it under the terms
of this Limited Warranty. In no event is EURO-PRO Operating LLC liable for incidental or
consequential damages to anyone of any nature whatsoever. Some states do not permit the
exclusion or limitation of incidental or consequential damages, so the above may not apply to
This Limited Warranty gives you specific legal rights, and you may also have other rights
which vary from state to state or from province to province.
*IMPORTANT: Carefully pack item to avoid damage in shipping. Be sure to include proof of
purchase date and to attach tag to item before packing with your name, complete address
and phone number with a note giving purchase information, model number and what you
believe is the problem with the item. We recommend you insure the package (as damage
in shipping is not covered by your Limited Warranty). Mark the outside of your package
“ATTENTION CUSTOMER SERVICE”. We are constantly striving to improve our products,
therefore the specifications contained herein are subject to change without notice.
TOLL FREE: 1-800-798-7398
Euro-Pro Operating LLC
Newton, MA 02459
CAN: Ville St-Laurent, QC H4S 1A7
Copyright © 2011 Euro-Pro Operating LLC
Printed in China
Illustrations may differ from actual product.
Download PDF