Roto Fryer
Please retain these instructions for future reference
Description of appliance
The following terms are used throughout the instruction manual
Filter cover
Rise and fall
Filter cover hook
Cord storage
Basket handle
Viewing window
Lid release button
Inspection door for
pipe compartment
Temperature control
Indicator light
Oil drainage tube
Drainage tube plug
Roto Fryer F28311
Safety warnings
Read this instructions booklet carefully before installing and using the appliance. It is the only way to ensure the best results and maximum user safety.
• The power cable of this appliance must not
be replaced by the user as this requires the
use of special tools. If the power cable is
damaged, it must be replaced by the manufacturer, an authorised service centre or a
qualified professional in order to eliminate
all risk. See guarantee leaflet for details.
• Never immerse the appliance in water.
• This appliance shall not be used by children
from 0 year to 8 years.
This appliance can be used by children aged
from 8 years and above if they are continuously supervised.
This appliance can be used by people with
reduced physical, sensory or mental capabilities or lack of experience and knowledge if
they have been given supervision or
instruction concerning use of the appliance
in a safe way and understand the hazards
involved. Keep the appliance and its cord
out of reach of children aged less than 8
Cleaning and user maintenance shall not be
made by children.
• Appliance is not intended to be operated
by means of an external timer or separate
remote-control system.
• This is household appliance only.
Roto Fryer F28311
It is not intended to be used in: staff
kitchen areas in shops, offices and other
working environments; farm houses; by
clients in hotels, motels and other residential type environments; bed and breakfast
type environments.
• Cooking appliances should be positioned in
a stable situation with the handles (if any)
positioned to avoid spillage of the hot liquids.
Failure to observe the warning may result in life threatening injury
by electric shock.
• Before using the appliance, check that the voltage of the mains
power supply corresponds to the value indicated on the appliance rating plate and that the socket and power line are appropriate for the load required.
• Connect the appliance to an earthed power supply and sockets
with a minimum current rating of 10 A only. (If the plug fitted
to the appliance does not match the power socket, have the
plug replaced with a suitable type by a qualified professional).
• Do not touch the appliance with wet or damp hands.
Danger of burns!
Failure to observe the warnings could result in scalds or burns.
• While in operation, the appliance becomes hot. DO NOT
• Do not move the deep fryer when the oil is hot as this may
cause serious burns.
• To move the appliance, use the recesses at the bottom on all
sides. (Never move the appliance using the basket handle).
Check that the oil is cool enough (waiting about 2 hours).
• Never leave the power cable hanging from the edge of the surface the deep fryer is resting on, where it could be grasped by
a child or get in the way of the user.
• When opening the lid, take great care to avoid hot steam and
splashes of boiling oil.
• Never leave the power cable dangling from the work surface as
it could be grabbed by children or get in the way of the user.
Roto Fryer F28311
Failure to observe the warnings may result in life threatening injury
or damage to the appliance.
• Never use the fryer without oil.
• Never locate the appliance near sources of heat.
• The deep fryer must only be switched on after it has been
filled with oil or fat. If it is heated up while empty, a thermal
safety device comes into operation which stops it from working. In this case it is necessary to contact our nearest authorised service centre.
• If oil leaks from the fryer, contact a technical service centre or
personnel authorised by the manufacturer.
Please note:
This symbol identifies important advice or information for the user
• After removing the appliance from the packaging, make sure
that the fryer is in complete and perfect condition. Ensure all
labels, plastic bags, and packaging have been removed from both
inside and around the fryer.
• Before using the fryer for the first time, wash the bowl, basket
and lid in hot water and washing up liquid. At the end of the
operation, dry everything thoroughly and remove any water
left in the bottom of the bowl. This prevents dangerous splashes of hot oil during operation.
• It is normal for the appliance to give off a "new" smell when
used for the first time.Ventilate the room.
• Never use homemade or very acid oils.
• The basket clips automatically into the central pin in the pan
boiler.Therefore, to avoid breaking it, do not turn it manually in
order to seek the correct position.
This appliance conforms to EC directive 2004/108/EC on
Electromagnetic Compatibility and EC regulation no. 1935/2004 of
27/10/2004 on materials intended for contact with food.
Important information for correct disposal of the product in
accordance with EC Directive 2002/96/EC.
At the end of its working life, the product must not be disposed of as urban waste. It must be taken to a special local
authority differentiated waste collection centre or to a dealer
providing this service. Disposing of a household appliance
separately avoids possible negative consequences for the
environment and health deriving from inappropriate disposal
and enables the constituent materials to be recovered to obtain significant savings in energy and resources.As a reminder of the need to dis-
Electric Deep Fryer F28311
pose of household appliances separately, the product is marked with a
crossed-out wheeled dustbin.
Electrical requirements
Important - UK only
• The wires in the cord are coloured as follows:
Green and Yellow = Earth
Blue = Neutral
Brown = Live.
• The appliance must be protected by a 13A approved (BS1362)
• warning: this appliance must be earthed.
• For non-rewireable plugs the fuse cover MUST be refitted when
replacing the fuse. If the fuse cover is lost then the plug must not
be used until a replacement can be obtained. The correct fuse
cover is identified by colour and a replacement may be obtained
from your De’Longhi Authorised Repairer (see guarantee
• If a non-rewireable plug is cut off it must be destroyed
immediately. An electric shock hazard may arise if an unwanted
non-rewireable plug is inadvertently inserted into a 13A socket
Electric Deep Fryer F28311
Thank you for choosing this rotofryer. To get the very best
out of your new rotofryer it is advisable to read these instructions before using the appliance. This is the only way to
ensure optimum results and maximum safety.The manufacturer is not liable for damage deriving from the failure to comply
with the user instructions.
Before using for the first time
fig. 1
1 Remove all packaging.
2 Wash the parts: see “Cleaning”.
Instructions for use
Filling with oil or fat
Raise the basket to the highest position by pulling the special
handle upwards (fig.1).
The lid should ALWAYS be closed when the
basket is raised and lowered.
• Open the lid by pressing button (fig.2).
• Remove the basket by pulling it upwards (fig.3).
• Pour into the container 1.2 litres of oil (or 1 kg. of fat).
WARNING: The level must always be between the
maximum and minimum levels indicated.
Never use the deep fryer when the oil is below the
“min” level as it could cause the thermal safety
device to come into operation; to replace it you need
to contact one of our service centres: See enclosed
guarantee leaflet.
Important: Oil and water mixing can cause hot oil to spray out
during operation.
Best results are obtained using a good quality oil suitable for deep
frying such as corn oil or groundnut oil. Avoid mixing different
types of oil. Do not use olive oil, butter or margarine as they could
smoke and bubble over. If you use lumps of solid fat, cut them into
small pieces so that the fryer does not heat up in the first few
minutes without a covering of fat.The temperature must be set to
150°C until the fat has melted completely.
The required temperature can then be set.
Starting to fry
1. Put the food which is to be fried into the basket, without ever
overfilling it (max. 1 kg. of fresh potatoes). In order to obtain a
more even frying, we recommend concentrating the food especially around the perimeter of the basket, leaving the central
part more sparingly filled.
2. Put the basket into the boiler pan in a raised position (fig.3)
and close the lid by pressing lightly down upon it until the
hooks click. Always close the lid before lowering the basket in
fig. 2
fig. 3
fig. 4
fig. 5
Roto Fryer F28311
fig. 6
order to avoid hot oil from splashing out.
3. Plug into the mains socket, set temperature control dial to the
required temperature (fig.4). When the temperature set has
been reached, the indicator light will go off.
4. As soon as the indicator light goes off, immerse the basket in
the oil, lowering the handle slowly after sliding the handle’s slider back.
• It is completely normal for a considerable amount of very hot
steam to pour out of the filter cover immediately after this.
• At the start of cooking, immediately after the food has been
immersed in the oil, the internal wall of the viewing window
(where present) will steam up, before progressively clearing.
• It is normal for drops of condensation to form around the
basket handle and lid while the appliance is working.
After frying
fig. 7
When the cooking time runs out raise the basket and check if the
food has been cooked thoroughly as required. In the models fitted
with a viewing window this check can be carried out by looking
through the window without opening the lid. If cooking is complete, turn off the appliance by turning the thermostat dial to the
"0" position until the internal switch clicks. Drain excess oil by
leaving the basket inside the fryer for a while in the high position.
Filtering the oil or fat
fig. 8
We recommend that you carry out this procedure each time you
have finished frying as, especially when the food has been breaded
or floured, the food particles tend to burn if they remain in the
liquid thus causing much quicker deterioration in the oil or fat.
Check that the oil is cool enough (waiting about 2
Models with drainage tube
fig. 9
fig. 10
Bring the front part of the fryer to the edge of the
work surface, taking care that the feet never protrude over the edge (fig. 5).
1. Open the lid of the fryer and remove the basket (fig. 3).
2. Open inspection door as shown in (fig. 6).
3. Extract drainage tube.
4. Remove plug while at the same time squeezing the tube with
two fingers to prevent the oil or fat from leaking out before
the tube has been directed into a container (fig. 7).
5. Allow the oil or fat to drip into a container (fig. 8).
WARNING: Never empty the fryer by tilting it or turning
it upside down.
6. Remove any deposits from the tank using a sponge or absorbent paper.
7. At the end of the procedure fit the plug back onto the draina-
Roto Fryer F28311
ge tube and reposition it in its compartment.
8. Put the basket back in the high position and place one of the
filters (optional) at the bottom of the basket (fig. 9).You can
obtain the filters from your retailer or one of our service centres. See enclosed guarantee leaflet.
9. Next pour the oil or fat very slowly into the deep fryer so
that it does not spill out of the filter (fig. 10).
10. The oil which has been filtered in this way can be preserved
inside the fryer. However, if a long time elapses before it is next
used, it is advisable to preserve the oil in a closed container in
order to stop it deteriorating. It is good practice to keep oil
used for frying fish separate from that used for frying other
If fat is used, be careful not to let it cool down too
much or it will solidify.
fig. 11
Maintenance of the anti-odour filter
Removable filter: Over time, the anti-odour filter inside the lid
loses its efficiency.You are therefore recommended to replace it
after every 10/15 frying sessions. To replace, remove the plastic
filter grille (fig 11-12).
Before cleaning, always remove the plug from the electrical socket.
Never immerse the fryer in water or hold it under
the tap. By getting inside the water would cause
short circuiting.
Check that the oil is sufficiently cold (wait about 2
hours), then empty out the oil or fat as previously described in
the paragraph headed “filtering the oil or fat”.
Remove the lid as shown in (fig. 13).
The lid is removable, to take it off, proceed as follows: push the lid
back (see arrow "1" fig. 13) and at the same time, lift it up (see
arrow "2" fig. 13). Do not immerse the lid in water without having
first removed the filter.
To clean the boiler pan, proceed as follows:
• Wash the tank with hot water and washing up liquid, then rinse
and dry everything carefully. In the models fitted with oil drainage pipe, always use it to empty out the water (fig. 14); then
remove any remaining water which has collected in the oil
drainage tube.
• In order to clean the inside of the drainage tube, use the tube
brush supplied (fig. 15).
• We advise regular cleaning of the basket, with care being taken
to eliminate any deposits which might have accumulated in the
basket’s wheel guide ring.
• Dry the outside of the fryer with a soft, damp cloth in order
fig. 12
fig. 13
fig. 14
fig. 15
Roto Fryer F28311
to get rid of splashes and any little dribbles of oil or condensation.
Model with non-stick boiler pan
To clean the boiler pan use a soft cloth with a neutral detergent.
Never using objects or abrasive detergents.
Cooking hints
How long the oil or fat lasts
The oil or fat must never go below the minimum
level. From time to time it is necessary to renew it completely.
The length of time the oil or fat lasts depends on what is fried.
Breading, for example, dirties the oil more than simple frying.
As for all types of fryer, the oil deteriorates if it is reheated several
times.Therefore, even if it is used and filtered correctly, we recommend replacing it completely fairly often.
Since the deep fryer works with little oil, due to its rotating basket,
there is the considerable advantage that you only have to get rid of
about half the amount of oil that you would with the other deep
fryers on the market.
How to fry correctly
Important: Oil and water mixing can cause hot oil to spray out
during frying.
• It is important to follow the recommended temperature for
every recipe. If the temperature is too low, the fried food
absorbs oil. If the temperature is too high a crust quickly forms
on the outside while the inside remains uncooked.
• The food which is to be fried must only be immersed when the oil has reached the right temperature, i.e. when the indicator light goes off.
• Do not overfill the basket.This would cause the temperature
of the oil to drop suddenly, resulting in fried food which is too
greasy and not uniformly fried.
• When frying small quantities of food, the temperature of the
oil must be set lower than the temperature indicated to avoid
the oil boiling too violently.
• Check that the food is thinly sliced and of even thickness, as
food which is too thick cooks badly on the inside, despite looking nice, while food of an even thickness reaches the ideal
cooking point all at the same time.
• Dry the food completely before immersing it in
the oil or fat, as wet food becomes soggy after cooking
(especially potatoes). It is advisable to bread or flour food
which has a high water content (fish, meat, vegetables), being
careful to remove the excess bread or flour before immersing
it in the oil.
Roto Fryer F28311
Frying non-frozen food
Temperature Time in
Type of food
Half portion
Whole portion (safety limit)
Scampi tails
Sole (n. 3)
Breaded veal cutlets (n. 2)
Chicken cutlets (n. 3)
Meat balls (n. 8 - 10)
Bear in mind that the cooking times and temperatures are
approximate and must be regulated according to the amount of food
which is to be fried and to personal taste.
Roto Fryer F28311
Frying frozen food
• Frozen foods have very low temperatures. As a result they
inevitably cause a considerable drop in the temperature of the
oil or fat.To achieve a good result, we advise you not to exceed
the quantities recommended in the following table.
• Frozen foods are often covered in ice crystals which is
necessary to remove before cooking by shaking the
basket safely away from the fryer. Then immerse the basket
very slowly into the frying oil to avoid the oil reboiling.
Important: Oil and water mixing can cause hot oil to spray out
during operation.
The cooking times are approximate and must be varied according
to the initial temperature of the food which is to be fried and
according to the temperature recommended by the frozen food
Temperature Time in
Type of food
Recommended quantity
for excellent frying
MAX quantity (safety limit)
Fish fingers
180 (*)
Chicken cutlets (n. 3)
WARNING: Before immersing the basket, check that the lid is
firmly closed.
(*) This is the recommended dose to achieve excellent frying. It is
naturally possible to fry a larger amount of frozen chips, but
you should bear in mind that in this case they will end up being
a little greasier because of the sudden drop in the oil
temperature at the time of immersion.
Roto Fryer F28311
Operating faults
Bad smell
The oil
The odour-eater filter is
The oil has deteriorated.
The cooking liquid is unsuitable.
The oil has deteriorated
and causes too much foam.
You have immersed food
which is not sufficiently dry
in the hot oil.
The basket has been
immersed too quickly. The
oil level in the fryer is over
the maximum limit.
Replace the filter.
Replace the oil or fat.
Use a good quality oil suitable for
deep frying.
Replace the oil or fat.
Dry the food well.
Immerse it slowly.
Reduce the amount of oil in the boiler pan.
The oil does
not heat up
The deep fryer has previously been used without
oil in the boiler pan, causing
the thermal safety device
to break.
Contact the Customer Services
Department (see enclosed guarantee
Only half of the
basket has fried
The basket does not rotate
during cooking.
Clean the bottom of the boiler pan.
Clean the basket wheel guide ring.
Service and Customer Care
• If the cord is damaged it must, for safety reasons, be repaired by
De’Longhi or an authorised De’Longhi repairer in order to
avoid any risk.
• Please refer to the guarantee leaflet enclosed for service and
assistance details
Roto Fryer F28311
De’Longhi Appliances Via L. Seitz, 47 31100 Treviso Italia