Cooler container

The Petromax cooling products are designed to keep your food and drinks cool for a long period of time without electricity. The Petromax cool boxes can keep your supplies fresh for up to 12 days by using an ultra-passive cooling system powered by ice or ice packs. The cooler bags offer up to 6 days of cooling, while the cooler backpacks can keep your food and drinks cool for up to 8 days. These periods can vary depending on the outside temperature and usage, but they offer you the security of always having fresh food available, even on long trips.

The cool boxes, cool backpacks and cool bags use an ultra-passive cooling system that works completely without electricity. This system uses commercially available ice or ice packs to keep the temperature in the box, bag or rucksack low. As no compressor or absorber is required, the cooling products are particularly robust and reliable. This method is not only energy-efficient, but also very easy to use and ideal for anyone who wants to be independent of power sources when traveling.

Cleaning your Petromax cooling products is easy and uncomplicated. Our cool boxes are equipped with an integrated drainage system that facilitates the removal of melt water and cleaning. You can simply rinse out the box and drain the water via the drainage system. For the cooler bags and cooler rucksacks, it is sufficient to wipe them with a damp cloth and then allow them to dry thoroughly. Make sure to clean the products regularly to keep them in top condition and prolong their lifespan.

Choosing the right size depends on your individual needs and the intended use. If you are on long expeditions or camping trips and want to take larger quantities of food and drinks with you, Petromax cool boxes are ideal. They offer plenty of space and a long cooling capacity. The cooler bags are perfect for shorter trips or day trips as they are more compact and easier to transport. If you travel a lot and need maximum mobility, the cooler backpacks are the best choice. They allow you to carry your supplies comfortably on your back while keeping them cool for a long time.

The Petromax cooler bags and cooler backpacks are made of water-repellent material and have waterproof zippers. This ensures that your contents are optimally protected, even if you are traveling in damp or wet environments. The cool boxes are also robust and offer a high level of protection against moisture. These features make our cooling products reliable companions in all weather conditions and outdoor activities.

The optimal size of your cooler depends on several factors:
Group size and duration: For solo travelers or couples on day trips, a compact Cooler Bag with 6-10 liters of volume is often sufficient. For family outings or multi-day trips, we recommend at least 25 liters, and for larger groups, 50 liters is ideal.
Contents and space requirements: Think carefully about what you want to bring. As a rule of thumb:
• A 25-liter Cool Box holds about 24 beverage cans plus ice
• A Cooler Backpack with 27 liters can hold 13 one-liter bottles standing up
• The Cooler Bags offer space for 6 x 0.5 l bottles or 4 x 1.5 l bottles
Transport options: Consider how you will carry the cooler. Even the best Cool Box is of little use if it’s too heavy or cumbersome for your vehicle or hiking route. Here, our Cooler Backpacks with ergonomic padding and adjustable straps offer clear advantages for long walks, while Cool Boxes with handle cutouts for ropes and straps can be securely fastened in boats or cars.
Also pay attention to the amount of cooling material needed: For optimal results, about one-third of the container should be filled with ice or cooling packs. So always plan a bit more generously to avoid running out of space for food at the end of the day due to too much cooling material.

Our Petromax cooling containers stand out for exceptionally long cooling times without power supply. While conventional coolers often lose significant cooling performance after just a few hours, our products guarantee reliable cooling for several days – from 4 days with cooler bags to 8 days with the Cooler Backpack, and an impressive 12 days with our cool boxes.
The combination of high-quality materials and thoughtful design ensures maximum insulation. Especially the double-walled construction with cavity insulation in our cool boxes sets industry standards. The robust build of all cooling containers also ensures a long service life even under demanding outdoor conditions.
Another unique feature is the multifunctionality of our products: cool boxes also serve as sturdy seats, Cooler Backpacks offer numerous attachment options for additional gear, and cooler bags score with integrated bottle openers and waterproof materials.

The cooling performance of a cooler largely depends on its insulation technology. Our Petromax coolers rely on multi-layer insulation systems:
Wall thickness and material: The thicker the insulating layer, the longer the cold is retained. Our cool boxes feature particularly thick, double-walled constructions with cavity insulation, while the cooler backpacks and bags are equipped with high-quality, multi-layer insulating materials.
Seal tightness of the lid: A precisely closing lid is crucial to minimize cold loss. Our cool boxes have a special lid lock that reliably keeps the cold inside. For cooler backpacks and bags, waterproof zippers ensure optimal sealing.
Tips to maximize cooling performance:
• Pre-cool the container before filling it (e.g., overnight in the cellar or fridge)
• Fill the cooler with already chilled food and drinks
• Use block ice instead of ice cubes for longer cooling times
• Keep the container in the shade as much as possible
• Open the lid only as briefly and infrequently as necessary
With these measures, you can further maximize the already impressive cooling performance of our Petromax coolers and stay independent in nature even longer.

Choosing the right cooler can be crucial for your outdoor experience. Depending on your needs and area of use, different coolers offer various advantages:

Coolers: Our sturdy Petromax coolers are true endurance specialists. With a cooling duration of up to 12 days without power, they provide maximum independence for longer outdoor adventures. The ultra-passive cooling system with double-walled cavity insulation ensures excellent cooling performance – simply fill with regular ice or cooling packs. The KX25 and KX50 models feature a practical drain valve for meltwater and also serve as stable seating. Thanks to generous volumes of 25 and 50 liters, you can store entire crates of drinks and plenty of provisions.

Cooler backpacks: For adventurers who want to carry their coolers comfortably, our cooler backpacks are the ideal choice. With a capacity of 27 liters and an impressive cooling duration of up to 8 days, they offer first-class mobility without compromising cooling performance. The water-repellent nylon fabric and dirt-resistant surfaces protect against leaking meltwater. Especially practical are the numerous extra pockets for important accessories as well as attachment options for smaller gear.

Cooler bags: Our versatile cooler bags are true all-rounders for shorter trips. With cooling times of 4 to 6 days, they provide reliable cooling for food and drinks in two different sizes. The water-repellent polyester fabric and waterproof zipper ensure safe transport. Thanks to the integrated bottle opener, loops for carabiners, and practical outer pockets, these cooler bags are perfect for hunting trips, boating, or camping adventures.