The jug is a necessary equipment for storing water outdoors, and is divided into hard and soft categories according to the degree of deformability.
A hard kettle
Military Kettle: The biggest feature is the "bunching stick" and the time the old dad paid for it. Today is still a "need to be at home." Every winter, the young girl will use it instead of a hot water bottle. I think it will not be bad for another 20 years. The second is cheaper and the market price is around twenty yuan. The disadvantage is that the flat garden type is not easy to store, and the inner wall of aluminum is free from any coating, and the poured water is easily deteriorated. I heard that taking too much aluminum in the human body can cause dementia! Going out to be a good person, come back to become a big idiot, who wants it? (Teasing you).
Plastic Kettle: General grade made of non-toxic polyethylene, the price is lower. The disadvantage is that the storage time of the water is too long, there will be a share of plastic taste, and the sealing performance is general and cannot be used to store hot drinks. The high-grade kettle body is made of high-grade polyurethane material. Temperature capability up to 120 degrees. Among them, the pressure-type water bottle (such as a bicycle water bottle) is generally equipped with a pull-type switch, which is very convenient for drinking, and the sealing property is not as good as the pouring type. The pouring type basically uses a screw-in lid, and the pot wall is hard. The kettle falls freely from a height of several meters, and it will not crack. One of the most used kettles in outdoor activities.
When buying a plastic kettle: First check the pros and cons of the material, open the lid of the kettle, and smell the odor inside the kettle. All odors will be shot. Then check the sealing performance, seal the lid, pressurize the kettle body with moderate force, and listen for leaks. If you are familiar with your boss, it is best to take a try. Finally, look at the making process of the pot (whether the thickness of the pot is the same and there is no trachoma).
Whether the color and decoration of the kettle match your taste is the last thing to consider.
Professional level pots: The quality professional pots are made of high quality aerospace aluminum alloy and are made of one-piece molding technology that is very strong and durable. The one-liter body of light body weight only weighs about 110 grams. The design is reasonable for easy gripping. Usually the kettle body is designed as a cylinder with a diameter of no more than 8 cm. Some types also have buttons attached to the backpack for convenience. Variety, Variability Large specialty kettles are classified by type, and each has its own specialty in performance, such as bicycle use, mountaineering, insulated kettles used in high-cold areas, and even dedicated to carrying oily liquids. Kettles of the same diameter can also freely switch spouts and seals depending on the application.
The professional kettles in the market are mainly Swiss-made SIGG and Spanish-made LAKEN with good performance and moderate value.
Second, soft kettle
Water bag: It is used with a special backpack and made of polymer composite material. Water will not have unpleasant plastic taste. Do not underestimate this thin layer of plastic, you are just standing on the top and nothing, transparent material can let you always know the water inventory. At the top, there is a small hole that can be hung on a special package, a screw-in type water inlet. The straw drawn from the bottom allows you to replenish moisture without impeding your movement. It is almost the best configuration for off-road racing.
Skin bag: It is structurally equivalent to a water bag with a straw removed. Early bladders were made from the animal's bladder because of the good waterproofness of the bladder. Now the structure of the bladder is divided into two layers inside and outside, and the materials used for the bladder are basically the same as the water bag. The outer layer material is basically made of leather, and the shape is centered on "comma" type. The biggest advantage is that it is easy to carry after folding.
Compressed water bucket: compressed into a round sheet, opened to become a bucket, the common capacity of 5 liters, 7 liters, and more for camp water storage.
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