Bosch MMB21 GB Series, Instruction Manual

Robert Bosch Hausgeräte GmbH

15

en

Working with the smoothie insert

With this insert it is particularly easy to make 

smoothies made of fresh fruits, milk, soya 

milk, yoghurt and juices.

Fig. 





Prepare blender as described above.



After attaching and screwing on the 

blender jug, the smoothie insert 

is inserted into the blender jug.



Put lid on and press down all the way.



Insert the mains plug.



Put ingredients through the feed tube into 

the blender jug; chop up fruit beforehand 

if required.

Warning!

Do not put large, hard ingredients in the 

blender jug, e.g. stones from avocados 

or plums.



Insert measuring cup into feed tube.



Switch on the appliance.

After using the appliance 



Set the rotary switch to 0/off.



Remove mains plug.



Remove the blender jug by rotating 

it in an anti-clockwise direction.



Remove lid. 



Take measuring cup out of the lid 

and plug into the smoothie insert. 

This prevents integral components from 

falling out of the insert into the drink.



Empty blender jug.



Clean all parts, see “Cleaning and 

servicing”.

Cleaning and servicing

The appliance requires no maintenance! 

Thorough cleaning guarantees a long service 

life. An overview of cleaning the individual 

parts can be found in Fig. 



.

Warning!

Do not use abrasive cleaning agents. 

Surfaces may be damaged.

Tips: 

– Preferably clean the parts immediately 

after use. This will prevent residue 

from drying on and attacking the plastic 

(e.g. by essential oils in herbs).

– If processing e.g. carrots and red 

cabbage, the plastic parts will become 

discoloured by a red film which can be 

removed with a few drops of cooking oil.

Cleaning the motor block



Remove mains plug.



Wipe motor block with a damp cloth. 

If required, use a little detergent.



Then wipe dry.

Cleaning the blender

The blender jug, lid and measuring cup are 

dishwasher-safe.

Tip: Pour a little water and washing-up liquid 

into the attached blender. Switch to setting 

Pulse for several seconds. Pour out the water 

and rinse the blender with clean water.

Cleaning blade holder 

(only MMB42...)

Do not clean blade holder in the dishwasher, 

but under running water using a brush. 

Do not leave in water! 

Remove seal for cleaning.

Troubleshooting

Fault:

Blender does not start or appliance switches 

off during operation.

Possible cause:

The appliance was overloaded (e.g. tool 

jammed by food) and the electronic fuse 

has tripped.

Risk of electric shock!

Never immerse the motor block in water 

and never hold under running water and 

do not clean in the dishwasher.

Risk of injury from sharp blades!

Do not touch blender blades with bare 

hands. Clean them with a brush.

Risk of injury!

Before rectifying a fault, pull out the mains 

plug.

MMB21-42_de-ar.book  Seite 15  Montag, 2. Februar 2015  10:17 10

14

Robert Bosch Hausgeräte GmbH 

en

Preparation



Before operating the appliance and 

accessories for the first time, clean 

thoroughly; see “Cleaning and servicing”.



Place motor block on smooth, stable and 

clean base.



Unwind the cable to the required length.

Working with the plastic blender jug 

(MMB21...)

Fig. 





Attach blender jug to the drive on the 

motor block. Arrow on the blender jug 

points towards the dot on the motor block.



Attach blender blender jug by turning 

it all the way clockwise. 



Add ingredients.



Put lid on and press down all the way. 

Insert measuring cup into feed tube.



Insert the mains plug.



Turn rotary switch to the required 

operating speed.



Grip the edge of the lid while operating 

the blender.

Do not grip the feed tube!

Add more ingredients



Set the rotary switch to 0/off.

Either



Remove lid.



Add more ingredients.

or



Take out measuring cup.



Add liquids and solid (fairly small) ingre-

dients through the feed tube in the lid.



Switch on appliance again.

After using the appliance 



Set the rotary switch to 0/off.



Remove mains plug.



Remove the blender by rotating 

it in an anti-clockwise direction.



Take the lid off the blender jug.



Empty blender jug.



Clean all parts, see “Cleaning and 

servicing”.

Working with the glass blender jug 

(MMB42...)

Fig. 





Put blender jug down with the base 

face up.



Place seal on the blade holder. Ensure 

that the seal is positioned correctly.



Grip blade holder by the handle and insert 

into the blender jug. 

Note shape of the parts (Fig. 



-2a)!



Move handle (Fig. 



-2b). This locks 

the blade holder in the blender jug.



Turn blender jug over.



Attach blender jug to the drive on the 

motor block. Arrow on the blender jug 

points towards the dot on the motor block.



Attach blender blender jug by turning 

it all the way clockwise. 



Add ingredients.



Put lid on and press down all the way. 

Insert measuring cup into feed tube.



Insert the mains plug.



Turn rotary switch to the required 

operating speed.



Grip the edge of the lid while operating 

the blender.

Do not grip the feed tube!

Add more ingredients



Set the rotary switch to 0/off.

Either



Remove lid. 



Add more ingredients.

or



Take out measuring cup.



Add liquids and solid (fairly small) ingre-

dients through the feed tube in the lid.



Switch on appliance again.

After using the appliance 



Set the rotary switch to 0/off.



Remove mains plug.



Remove the blender jug by rotating 

it in an anti-clockwise direction.



Take the lid off the blender jug.



Empty blender jug.



Turn blender jug over and put down with 

the opening face down.



Remove blade holder. To do this, fold 

the handle upwards and pull out the blade 

holder.



Clean all parts, see “Cleaning and 

servicing”.

Important information

If the seal is damaged or not correctly 

positioned, liquid may run out. 

MMB21-42_de-ar.book  Seite 14  Montag, 2. Februar 2015  10:17 10

7

  en