USER MANUAL DA 506 GRAEF
General safety instructions 19
Product description 21
Preface 22
Information on these operating instructions 22
Warning messages 22
Danger caused by electric current 23
Intended use 23
Limitation of liability 23
Unpacking 23
Disposal of the packaging 24
Requirements on the installation location 24
Electrical connection 24
Prior to first use 25
Preparing the dried material 25
Operation 25
Using silicone mats or baking paper 27
Storing foodstuffs 27
Preparing foodstuffs 27
Vegetables (52 °C) 27
Fruit (57 °C) 28
Meat (63 °C - 68 °C) 29
Reprocessing. 29
Cleaning 30
Technical data 30
After-sales service 30
Disposal of the unit 30
Two-year warranty 30
GENERAL SAFETY INSTRUCTIONS
This device conforms to the relevant safety regulations. However, incorrect handling may lead to injury and damage. For safe handling of this unit, please observe the following safety instructions:
- Before using this unit for the first time, check it for visible outer damages on the housing, connection cable and plug. Do not operate a damaged unit.
- If the connection cable is damaged, it must be replaced by the manufacturer, the after-sales service or a similarly qualified person in order to prevent danger.
- Repairs must be carried out by an expert or by Graef after-sales service only. Incorrect repairs may cause considerable hazards for the user. In addition, any claim under guarantee is forfeited.
- Defective parts must be replaced by original spare parts only. It is only with these parts that the safety requirements are met.
- This unit can also be used by children from 8 years age as well as by persons with limited physical, sensory or mental ability or with a lack of experience and/or knowledge if they have been trained in using the unit and have understood the dangers which may result from it. Cleaning and user maintenance must not be carried out by children, unless they are 8 years of age or older and are supervised in the process.
- The unit and its connection cable have to be clear of children who are younger than 8 years.
- Children should be supervised in order to make sure that they do not play with this unit.
- The unit is not intended to be used with an external timer or a separate remove control.
- Always disconnect the connection cable by using plug; do not pull the connecting cable.
- Be careful not to let the power cord hang freely, this could cause the fall of the appliance.
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Packaging materials must not be used for playing. There is a danger of suffocation.
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Observe the notes on the requirements regarding the installation location and the electrical connection of the unit in order to avoid personal and material damages.
- Do not place the unit in a dishwasher, and do not hold under running water either.
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This appliance is intended for domestic and similar use, such as:
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Staff kitchens in shops and office
In agricultural estates
- In hotels, motels and other residential areas
In bed and breakfast boarding houses
Another or any exceeding use shall not be considered intended.
CAUTION
The appliance can cause dangers, if is not used as intended. Please therefore do the following:
- Use the unit exclusively as intended.
- Observe the procedures described in these operating instructions.
Claims of any kind caused by damage by unintended use shall be excluded. The risk shall be borne sole by the operator.
PRODUCT DESCRIPTION

Control panel
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PREFACE
Dear Customer,
You have made a good choice by buying this dehydrator.
You have purchased a recognised quality product. We would like to thank you for buying this machine and wish you a lot of fun with your new Graef dehydrator.
Drying foodstuffs for preservation stems from the ancient Egyptians. The Spaniards were the first discoverers who were known to be using dehydration in order to prepare food for their expeditions. Information in these operating instructions shall help to achieve the best results with this unit. Please read these operating instructions carefully.
The operating instructions of the dehydrator (in the following referred to as unit) provides you with important information about its commissioning, security, the intended use and care of the unit.
The operating instructions shall have to be available at the unit at all times. The instructions have
to be read and applied by every person who deals with
- initial operation,
- operation,
troubleshooting and/or
- cleaning
of the unit.
Store this operating instructions and pass them on to a possible subsequent owner.
These operating instructions cannot take into consideration every conceivable use. For further information or in case of problems which are not dealt with or not dealt with sufficiently in these instructions, please get in touch with Graef custom service or your specialist dealers.
WARNING MESSAGES
In these operating instructions, the following warning messages and signal words are used:
WARNING
This refers to a potentially dangerous situation. Failure to observe this warning may result in serious injury or even death.
IMPORTANT!
This refers to application tips and other especially important information!
WARNING
Mortal danger is caused by contact with energised cables or components!
Please observe the following safety instructions in order to prevent an exposure to electric current:
- Do not use the unit if the mains cable or plug are damaged.
- In this case, you should let the Graef Customer Service install a new connection cable before using the appliance again. This may be done also by an authorised specialist. Do not open the housing under any circumstances. If live connections are touched or the electrical and mechanical construction are modified, there is the danger of electric shock.
- Never touch live parts. This can cause an electric shock and may cause even death.
INTENDED USE
This unit is not intended for commercial use. Use the unit
in closed spaces only. In order to avoid potential dangers, use the unit for drying / dehydrating only.
LIMITATION OF LIABILITY
All technical information, data and notes on the installation,
the operation and the care contained in these operating instructions correspond to the latest status before printing, and are rendered under consideration of our previous experience and to the best of knowledge. No claims may be derived from the particulars, illustrations and descriptions in these instructions.
The manufacturer shall not assume any liability for damage caused by:
non-observation of the instructions
- unintended use
- incorrect repairs
- technical modifications
- use of unapproved spare parts
Translations shall be carried out to the best of knowledge. We shall not assume any liability for translation mistakes. The original German text only shall be binding.
UNPACKING
When unpacking the unit, proceed as follows:
Pull the unit out of the cardboard box.
- Remove the packaging parts.
- Remove any stickers on the unit (do not remove the type plate).

DISPOSAL OF THE PACKAGING
The packaging protects the unit against transport damage. The packaging materials are selected according to the environmental compatibility and disposal-related aspects and can be recycled. The return of packaging into the material cycle saves raw material and reduces the waste volume. Dispose of the packaging material no longer needed at collection points for the "Green Dot" recycling system (in Germany).
IMPORTANT!
If possible, keep the original packaging during the guarantee period of the unit in order to be able to properly pack and transport the unit in the guarantee case.
REQUIREMENTS ON THE INSTALLATION LOCATION
For safe and fault free operation of the unit, the following requirements of the installation location have to be met:
- The unit has to be placed on a solid, flat, horizontal, and non-slipping surface with a sufficient weight-carrying capacity.
- Make sure that the unit cannot topple over and does not stand directly in front of a wall.
- Do not place the appliance on hot surfaces, such as hotplates, or near them.
- Never use the appliance outdoors, and always keep it in a dry place.
The unit is not designed for installation in a wall or a built-in cupboard.
- Do not set up the unit in a hot, wet or moist environment.
- Do not place the unit on paper / newsprint paper or loose surfaces. They might be drawn in and clog the ventilation slots. Make sure that the ventilation slots are not covered up.
- Place the unit at least 30~cm away from a wall.
- The socket has to be easily accessible so that the power cable can be removed easily in case of emergency.
ELECTRICAL CONNECTION
For safe and fault-free operation of the unit, the following requirements have to be met during the electrical connection:
- Before connecting the unit, compare the connecting data (voltage and frequency)
on the type plate with those of your energy network. These details must correspond so that no damage occurs to the unit. In case of doubt ask your trained electrician.
PRIOR TO FIRST USE
Prior to first use, wipe out the unit using a damp cloth. Then let the unit run for 45 minutes at 32^ in order to remove the moisture inside the unit. Clean the trays in warm water.
PREPARING THE DRIED MATERIAL
Use fresh and washed foodstuffs only. Do without using overripe fruit or vegetables. Prior to dehydration, remove stems, stones and the core. In order to maintain the colour of the dried material, sprinkle the fruit with lemon juice. Foodstuffs with a high sugar contents, such as apples, pears, peaches and bananas, are prone to darkening due to oxidation of sugar. Vegetables with a firm texture should be blanched for about 2 minutes in hot water before dehydrating them. In a small distance, put the foodstuffs side by side on the slide compartment. Select a distance to allow sufficient air to circulate. Do not place the foodstuffs on top of each other.
OPERATION
Prepare the foodstuffs to be dried.
IMPORTANT!
The thinner the foodstuffs were cut, the better they can dry. We recommend that you cut foodstuffs such as apples, lemons, oranges et cetera using our universal cutter. That way you will get even and thin slices. For smaller and thinner foodstuffs, we additionally recommend that you use the MiniSlice attachment. Using that unit, you can cut open mushrooms, tomatoes, strawberries, cucumbers, carrots et cetera extremely thin and evenly.
- Take the trays out of the unit using oven clothes and put the foodstuffs to be dried on the trays.
- Use the entire space of the trays, but make sure that there is sufficient space between the individual foodstuffs for air circulation. Overlapping of the food-stuffs impedes the dehydrating process.
Using both hands, slide the trays back into the unit.
- Switch on the temperature and the timer.

- Insert the plug into the socket.

- Switch the unit on. The timer is on 00:00 and the temperature on 50^ .

- Keep holding the "START" button for approx. 3 seconds until the hour display flashes up.

- Press "+" or "-" in order to increase or decrease the number of hours. (Maximum 40 hours)

- Then press the "START" button, the minute display will then flash.

- Press "+" or "-" in order to increase or decrease the number of minutes.

- Then press the "START" button, the temperature display will then flash.

- Press "+" or "-" in order to increase or decrease the temperature.

To confirm, press the START button again.
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Having done the settings, press again the START button. The green lamp illuminates and the dehydrating process will start.
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After completion of the dehydrating process (timer shows 00.00), switch off the unit.
USING SILICONE MATS OR BAKING PAPER
For foodstuffs which are damp or stick easily (e.g. tomatoes) we recommend that you use a silicone mat or baking paper. Put the silicone mat or the baking paper on the tray.
IMPORTANT!
Make sure that the baking paper does not cover the entire space of the tray. It should be easy for the warm air to pass through.
Put the silicone mat or the baking paper on the tray. At mid-term of the dehydrating time, the silicone mat or the baking paper can be removed.
STORING FOODSTUFFS
Before you stow the dried foodstuffs in a vessel, make sure that the foodstuffs are really dry. Moist foodstuffs easily get mouldy. Dispose of mouldy foodstuffs immediately. For storing foodstuffs use clean, dry vessels that can be closed airtight, if possible. Do not fill the dried foodstuffs into the vessel until they have cooled down.
PREPARING FOODSTUFFS
The following tables contain guideline values for the preparation of various fruits, vegetables and meat. The drying times depend on the ambient temperature, the relative air humidity and the moisture content of the foodstuff to be dried. When the moisture content is low, the drying time is at the lower end of the range. When the moisture content is high, however, the drying time is at the upper end of the range.
Please bear in mind that the drying times are also influenced by the number of foodstuffs on the trays. When drying foodstuffs, it is important to check the dryness of the product. When the product has not thoroughly dried, mould can form during storage (see food storage). In order to check the dryness, remove a slice of the foodstuff from the dehydrator and let it cool down to ambient temperature. Bend and divide the slice in order to test it for interior moisture.
VEGETABLES (52 °C)
| Dried material Preparation Result Time | | |
| Asparagus Wash and cut into pieces | Crispy 4 - 6 hours |
| Beans Wash, remove ends and cut into pieces | Crispy 9 - 12 hours |
| Beet Peel and cut into slices | Bendable 9 - 12 hours |
| Broccoli Trim and cut | cut through. Steam 3 - 5 minutes until soft | Crispy 10 - 14 | hours |
| Cabbage Wash, trim | and cut into 3 mm strips | Crispy 8 - 11 hours | |
| Carrots Steam until | soft and cut into slices | Bendable 7 - 11 hours | |
| Celery Cut the stems | into 6 mm stripes | Crispy 3 - 10 hours | |
| Cucumber Wash, trim | and cut into approx. 1 cm thick slices | Bendable 4 - 8 hours | |
| Aubergine Wash, peel | and cut into approx. 0.5 cm to 1.0 cm thick slices | Bendable 4 - 8 hours | |
| Mushroom Wash, either cut into pieces or leave whole | Bendable 4 - 7 hours | |
| Peppers Wash and remove seeds, cut into stripes or rings approx. 6 mm | Bendable 4 - 8 hours | |
| Potatoes Cut into slices, blanch for 4 - 6 minutes | Crispy / bendable | 7 - 13 hours |
| Tomatoes Wash and cut into rings | Bendable 5 - 9 hours | |
| Cherry tomatoes Cut into halves, cut-off side upward | Bendable 5 - 9 hours | |
| Zucchini Wash, trim | and cut into approx. 6 cm thick slices | Crispy 7 - 11 hours | |
FRUIT (57 °C)
| Dried material Preparation Result | Time | |
| Apples | Wash and cut into thin slices | Bendable | 7 - 15 hours |
| Apricots Wash and | cut into halves, cut off side upward | Bendable | 21 - 29 hours |
| Bananas Peel and cut into slices Bendable 7 - 10 hours | |
| Figs Wash, cut into four pieces, cut-off side upward | Bendable 22 - 30 hours |
| Kiwi Peel and cut into slices Crunchy 8 - 15 hours | |
| Nectarines Wash, cut into halves, cut-off side upward | Bendable 8 - 17 hours |
| Peaches Cut into halves, cut-off side upward | Bendable 8 - 16 hours |
| Pears Peel and cut into slices Bendable 8 - 16 hours | |
| Pineapple Peel and cut into slices | Bendable 11 - 18 hours |
| Rhubarb Peel and cut into stripes | Bendable 6 - 10 hours |
| Berries Cut strawberries into slices, leave other berries whole | Crunchy 7 - 15 hours |
| Watermelon Cut the crust off, cut into pieces | Bendable and sticky 8 - 10 hours |
| Tomatoes Wash and cut into rings | Bendable 5 - 9 hours |
| Grapes | Leave whole |
MEAT (63 °C - 68 °C)
| Dried material | Preparation | Result Time | |
| Jerky | Use very lean meat and remove as much fat as possible. Cut the meat into approx. 2 - 3 cm thick slices | Bendable | 3 - 4 hours |
IMPORTANT!
Please note that the above-mentioned particulars are indicative only and thus subject to correction.
REPROCESSING
During drying, water is removed from the foodstuffs. In order to restore their natural condition, process them with water. If you want to reprocess your foodstuffs, soak them in unsalted water for 3 - 7 minutes. Then prepare them as usual. If
you cook them, use the same water which you have utilised for soaking in order to preserve the nutrients. If you want to soak foodstuffs more than 1 hour, you should put them into the refrigerator to prevent bacterial growth. One cup of dried vegetable is reprocessed to approx. 2 cups. One cup of dried fruit is reprocessed to approx. 112 cups. The reprocessing times vary depending on the thickness of the foodstuff and the water temperature used. Warm water accelerates the reprocessing, but might lead to a certain loss of aroma.
CLEANING
IMPORTANT!
Pull the mains plug before each cleaning process.
Clean the trays in warm water using washing-up liquid, subsequently you can rinse them with clear water. Clean the dehydrator with a damp cloth. Neither put the dehydrator nor the trays into a dishwasher.
TECHNICAL DATA

AFTER-SALES SERVICE
If your Graef device is damaged, please contact your dealer or the Graef Customer Service at +49 (2932) 9703 677 or write an e-mail to service@graef.de.

DISPOSAL OF THE UNIT
At the end of its service life, this product cannot be disposed of in normal domestic waste. The symbol on the product and in the operating instructions point out to this fact. The materials are recyclable according to your marking. With the reuse, recycling or other forms of recycling of old equipment, you make an important contribution to the protection of our environment. Please ask your municipal administration for the disposal point.
TWO-YEAR WARRANTY
For this product, we assume 24 months manufacturer warranty for defects, which are due to production or material defects. Your legal warranty claim in conformity with Section 437 et seq. of the German Civil Code (BGB) shall remain unaffected by this regulation. The warranty does not cover damage caused by improper handling or use as well as defects which only slightly influence the function or the value of the appliance. Transport damages, as far as we are not responsible for it,
are excluded from the warranty claims. A warranty claim is excluded for damage caused by a repair which has not been carried out by us or one of our agents. In case of justified complaints, we shall repair the defective product or replace it by a product without defects at our discretion.
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Sommaire
Chere cliente, cher client,