How Cooler Box explained by Polar Zone Outdoor.
Can you imagine going to a tailgate, reaching into your portable cooler, and finding that it’s not chilly inside at all? Your drinks would taste less refreshing, your sandwiches would be soggy, and the fruit and veggies would be rotten and gross. Talk about a party killer!
Luckily, you can count on portable coolers to stay at the right temperature for a long time. How does this work? What’s the science behind coolers? Keep it cool and get ready to learn all the details!
Basics
An ice box, or cooler, is a simple, portable device for keeping food and drinks cold. A block or bag of ice is kept in the cooler, along with food. The ice box is kept closed except for when something is needed from inside of it. Ideally, it is also kept out of direct sunlight. If it is used correctly, an ice box can keep food at near-freezing temperature for anywhere from a couple of hours to several days as the ice slowly melts. After that, the water needs to be drained out and the ice needs to be changed.
Keeping the Food Cold
Ice takes a certain amount of heat energy to melt. As it absorbs this energy, the ice remains at the same temperature but gradually changes to liquid water. Coolers are very well insulated, which means that heat flows into the cooler from outside very slowly. A big block or bag of ice takes a lot of energy to melt. While it is melting, the ice keeps the cold water and food that is touching it at about 32 degrees Fahrenheit, or freezing temperature. As long as new ice is added before the ice inside has completely melted, the food will stay near freezing temperature.
Insulation
Heat is transmitted in two ways convection and conduction. Convection means airflow. If the cooler is kept closed, warm air cannot flow over the ice, meaning that little heat is lost through convection except when the ice box is open. The rest of the heat is lost through conduction, or heat flowing directly through the walls of the ice box. That is why the walls are made out of insulators, or materials that do not conduct heat well. Styrofoam, one of the most common insulators, has small air pockets inside of it. Air is a very poor conductor, so these pockets stop heat outside of the cooler from flowing through the sides and top into it. Heat does slowly leak into the ice chest, but it can take days for enough heat to seep in to completely melt the ice.
As proven outdoor chef always looking for an adventure nobody can fool you: You can light a fire in your sleep, you skillfully heat up the Dutch Oven to the right temperature and single-handedly prepare the food. Still, no matter if menu from the grill, steak at base camp or freshly caught fish at mooring: You always need to face the challenge of cooling your food in nature for several days on end. For that purpose, Petromax provides you with maximum independence with its kx-series of ultra-passive Cool Boxes. Here you can find out about which kinds of cool boxes there are and what makes Petromax Cool Boxes so strong and what extra functions they have to offer.
The choice among cool boxes is large and the preconditions as well as the fields of applications are diverse: at first, thermoelectric cool boxes, absorption cool boxes or compressor cool boxes seem to be ideal for camping, caravanning etc. Even though they reach low temperatures within a short time they can only maintain it by means of a power source or gas supply. For you that means a certain level of comfort on the one hand, however, on the other hand also the dependency on energy sources together with operating costs and operating noise. After all, this restricts you in the way of your adventures under the open sky. Passive Cool Boxes are the only alternative cooling option that works self-sufficient and makes you completely independent. Running solely with ice or cold packs this kind of cooling system ensures for preservation of your food and beverages – without external energy, operation noise or cost, or electricity prone to failure.
Advantages of a Polar Zone Cooler Box
In addition to the extreme cooling time the Polar Zone Cooler Box has even more to offer: With the PZ Advent 25, 45 (Wheeled) and 50 you can have three options, that with either 23.7L, 42.6L or 52L filling volume provide for enough reserve for long trips in the open. Also, the internal dimensions have been designed in such a way that you can transport common 1 l PET bottles or 1.5L for PZ Advent 45 and 50 in an upright position. The PZ Advent 55 can contain up to 55 cans of beer using 2:1 ice-to-can ratio.
Another advantage offer the integrated draining system. With that you can easily drain melting water when on the way and refill ice without having to clear out your provisions. Furthermore, this way your Polar Zone Cooler Box can be cleaned easily after your trip into nature. Apart from that, your Polar Zone Cooler Box has been thus designed that you have a variety of useful functions at hand.
Conclusion: Indispensable part of your outdoor activities - Camping, Fishing and Boating
Extreme cooling time, protection and preservation of food and beverages for days on end, seat and stand for fishing, secure transports on the loading area or the boat: The PZ Advent Cool Box has much to offer and delivers on its promises. With this box your outdoor experience will become more original and you will be more independent. Pack your stuff and provisions and from now on plan longer breaks away from the hustle and bustle of everyday life.