Kettles are essential equipment for storing water outdoors and are divided into several categories according to their degree of deformability.
Military Kettle: The biggest feature is the "bunching stick," and Dad supported the farmers to buy it. Today is still a "need to be at home." Every winter day, I 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 aluminum inner wall is free of 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).
Because aluminum material is harmful to the human body, how can we solve it? Here's a new material kettle.
Silicone Kettle: Made of food-grade silicone material, it is not deformed under high temperature, and non-toxic substance is precipitated. It is fitted with stainless steel leak-proof ring, and fits closely with health and hygiene to prevent water leakage. Because of the use of food-grade silicone material, it solves the problem of aluminum that is harmful to the human body and is therefore safer to use.
Plastic Kettle: The common grade is made of non-toxic polyethylene, and because of the plastic material, the price will be lower. Of course, there are disadvantages. The disadvantage is that the water storage time is too long, there will be a share of plastic taste, sealing performance, can not 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 out-type kettle (such as a bicycle kettle) 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. At present, it is one of the more commonly used water bottles in outdoor activities.