The Petromax Cool Box is an ultra-passive cooling system and is primarily designed for the
longest possible preservation of food and beverages using coolants (ice cubes, dry ice, cold
packs etc.). However, the Petromax Cool Box can also be used to keep food warm for a short
time, taking certain factors into account. Please read the following handling instructions
carefully and, depending on the intended use, do not deviate from them.
Use for a long cooling time
If you observe the following instructions on the use of your Petromax Cool Box, you will achieve an
optimum and long cooling performance during your outdoor adventures, subject to the environmen-
tal conditions. Please note that any non-compliance of the following points may significantly
shorten the cooling performance of your Cool Box.
1. The day before use, cool down your Cool Box as low as possible by filling it with ice or storing it at a
cold place (basement, garage, etc.).
2. Use large ice blocks to cool the food. The larger the ice blocks, the longer the cooling time will be.
3. Make sure, that the valve of the integrated drain system is tightly closed before filling the Cool Box.
4. Put the ice on top to increase the cooling performance, as cold air flows downwards.
5. As beverages / food at room temperature strongly reduce the cooling time, cool them down as low
as possible in the refrigerator before putting them into the Cool Box.
6. Each opening of the lid will influence the cooling performance therefore, open the Cool Box
consciously and as seldomly as possible. The more often you open the box, the lower the cooling
performance will be.
7. Keep the Cool Box out of direct sunlight and only place where overshadowed. Direct sunlight will
shorten the cooling time.
8. In case you need to refill ice during a long stay, let melting water drain through the drain system
beforehand.
9. Always keep the Cool Box upright during transport or storage.
Use for a short-term warm keeping
If you observe the following instructions on the use of your Petromax Cool Box, you will achieve a short-
term and effective warm keeping of food during your outdoor adventures, subject to the environmental
conditions. Please note that the Petromax Cool Box as an ultra-passive cooling system is not
designed for keeping meals warm. Keeping prepared food warm and the risk of spoiled food-
stuff kept warm and stored in the Cool Box for a certain period of time is therefore explicitly
at the risk of the purchaser/owner. Also, the consumption of the food kept warm in the Cool
Box for a short time and possible health hazards associated with it is the sole responsibility of
the purchaser/owner. The following procedure is therefore only a recommendation.
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