Instrukcja obsługi Alfi Juwel
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Congratulations on your purchase of an alfi product. We thank 
you for your confidence in our product. This manual contains 
some important instructions relating to its use and care. If you 
follow these instructions, your alfi vacuum flask will last for 
years to come.
alfi vacuum carafes and vacuum flasks 
keep drinks at their proper temperature 
for hours. The glass liner (1) is made of 
double-walled alfiDur toughened glass. 
A vacuum is created between the two 
glass walls (2) and the capillary (3) seals 
the glass liner air-tight. This vacuum 
prevents direct heat transfer. The 
insulation glass in the vacuum area is 
silver coated to improve the vacuum 
insulation performance by reflecting radiant heat. Some 
models, such as Dan Tea and Cool Bottle, include transparent 
glass liners without silver coating.  In this case, the fill line and 
the colour of the drink can be seen from the outside; the 
vacuum insulation performance is slightly lower (see also the 
following temperature diagrams). Note: streaks in the glass 
Vacuum insulation performance
1
1
1
1
1
2
2
2
2
2
3
3
3
3
3
Construction of an
 alfi vacuum flask
Construction of an
Construction of an
Construction of an
Construction of an
 alfi vacuum flask
 alfi vacuum flask
 alfi vacuum flask
alfi vacuum flask
liner are due to the manufacturing process and do not 
influence durability or insulating capability.
Use
Before using the vacuum carafe or vacuum flask for the first 
time, check to make sure that the bottom screw is tight. If 
necessary, use a coin to tighten the bottom screw by turning it 
clockwise. Check the screw from time to time to ensure that 
the seal between the glass liner and spout remains tight. Just 
before filling the vacuum flask, rinse it with hot water if the 
drink is to be kept warm or cold water if the drink is to be kept 
cool, in order to improve the insulation performance and 
prevent breaking the glass liner. Never use a microwave oven, 
conventional oven, stove or hotplate to pre-heat the flask. Fill 
the vacuum flask only up to about 2 cm below the spout.
The stopper on alfi vacuum carafes with 
hinged lids (Fig. 1) can be opened by 
pressing the hinge lever.  To fill the 
carafe, open the lid all the way.
To pour liquid from vacuum carafes with 
one-hand pouring button (Fig. 2), simply 
depress the button. To fill the carafe, turn 
the lid counter clockwise and pull it up to 
remove it. After filling the carafe, depress 
button 2 or 3 times to adjust the seal 
properly.
To pour liquid from vacuum carafes with 
screw top lids (Fig. 3), open the lid ½ a 
turn counter clockwise. You do not have 
to remove the entire lid in order to pour.
Use warm water and washing-up liquid to clean the inside of 
the vacuum flask. The   with its soft foam alfi cleaning brush
head simplifies this job. Do not use metal or hard plastic 
cleaning brushes. You can remove stubborn stains with alfi 
CleanTabs cleaning tablets. After cleaning the flask, carefully 
rinse it with water and allow it to dry.
Cleaning and care
Use soft, damp cloth to clean the outside of the vacuum flask, 
then dry it with another cloth. Do not use coarse-grained, 
abrasive cleaners, scouring pads, sponges or similar items.
Like silver jewellery or cutlery, silver plated vacuum carafes can 
tarnish over time. The vacuum flask is delivered in a protective 
bag that prevents or delays the surface tarnish. Clean the 
silver-plated vacuum flask regularly to ensure a long-lasting, 
brilliant shine. For best results, use commercially available 
silver polishing cloth or silver care product such as   Purargan
from  .WMF
Please do not place your alfi vacuum flask in the dishwasher 
or immerse it in water if it is not expressly described as 
dishwasher safe!
- Filter for brewing coffee directly into the vacuum carafe
-  tea filters with stainless steel filter foil for aroma compact
making tea directly in the vacuum carafe
- Vacuum carafe cleaning brushes
-   cleaning tabletsCleanTabs
After years of normal use, individual parts such as vacuum 
flask stoppers or sealing rings can wear out. The following 
spare parts are available for many models: insulating glass 
insert, sealing ring, screw lid, stopper and bottom screw. Your 
local dealer or alfi customer service can repair your alfi vacuum 
flask.
Accessories
The following accessories are available for alfi vacuum carafes:
Spare parts and repairs
Safety instructions
alfi quality guarantee
- Vacuum carafes and vacuum flasks with glass liners are only 
suitable for use where they can be set on a table.
- Do not use the vacuum flask to store or transport ice cubes. 
Transporting ice cubes can damage the insulating glass 
insert.
- Do not use the vacuum flask to store or transport carbonated 
beverages unless such use is expressly designated.
- Do not use the vacuum flask to keep milk products or baby 
food warm (risk for bacteria growth).
- Glass insulation inserts are fragile. If a vacuum flask with a 
glass insert falls or is not handled properly, the glass insert 
can break. Do not drink directly from the vacuum flask 
because it could contain glass splinters, especially if the seal 
no longer seems tight.
- Do not allow unsupervised children to touch the vacuum 
flask.
- alfi vacuum flasks are suitable only for use with food 
products.
alfi vacuum flasks conform to the currently valid European 
norm DIN EN 12546. We guarantee the material and 
workmanship for 2 years after the date of purchase and the 
insulation performance for 5 years.
The alfi quality assurance system is certified according to ISO 
9001.
Please keep your sales receipt! To make a guarantee claim, 
the receipt must be sent in with the item.
The guarantee does not cover glass or capillary breakage 
caused by the customer or damage that occurs due to improper 
use. The guarantee is also not valid in cases of faults or defects 
arising from repairs or modifications implemented by 
unauthorised third parties.
You will find tips for cleaning and care as well as 
information about recent developments and promotions on 
our Web site at www.alfi.de
alfi GmbH, Ernst-Abbe-Str. 14, 97877 Wertheim, Germany
Telephone: +49 (0)9342/877-0, E-Mail contact@alfi.de
www.alfi.de
01/2008
Instruction manual
alfi vacuum carafes and vacuum flasks
with glass liners
Example of the insulation performance of vacuum carafes
 and vacuum flasks with
silver coated insulation glass
transparent insulation glass
Temperature profile for warm drinks in an alfi vacuum flask 1,0 l
Fill temperature: 95 °C, Ambient temperature 20 °C
0
20
40
60
80
100
0 1 2 3 4 5 6 7 8 9 10 11 12
Time in hours
Temperature in °C
Temperature profile for cold drinks in an alfi vacuum flask 1,0 l
Fill temperature: 7,5 °C, Ambient temperature 20 °C
0
5
10
15
20
0 1 2 3 4 5 6 7 8 9 10 11 12
Time in hours
Temperature in °C
Fig. 1
Fig. 2
Fig. 3
Specyfikacje produktu
| Marka: | Alfi | 
| Kategoria: | warunki | 
| Model: | Juwel | 
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