kanister

Kanister is the German term for a sealed container used to store and transport liquids or gases. In everyday usage, it covers a wide range of containers made from metal or plastic, designed to hold fuels, solvents, water, chemicals, or compressed gases. The word is a loanword from the English canister, adapted into German usage.

Common types and applications include metal jerry cans for fuels, plastic canisters for water or household chemicals, and industrial gas canisters for compressed gases. Typical capacities range from small 1–2 liter containers to larger 5, 10, or 20 liter units. Materials vary by application: steel or aluminum for durability and fuel resilience, and high-density polyethylene (HDPE) or other plastics for lighter or chemical-resistant needs. Color-coding and labeling are often used to indicate contents and hazards.

Design and safety features tend to include a screw or pour cap, a secure spout or neck, and a carrying handle. Many containers also feature venting or pressure-relief mechanisms for gases, as well as seals or gaskets to prevent leaks. Standardized shapes and closures help ensure compatibility across products and ease of stacking, transport, and storage. Regulatory requirements in many regions govern labeling, packaging integrity, and transport of dangerous goods.

History and usage context note that the term Kanister is widely associated with the German Einheitskanister, a standardized fuel canister developed in the 1930s and used during World War II. The design influenced later containers and contributed to the familiar “jerry can” concept, later adopted and adapted by other armies and civilian manufacturers. Today, Kanister are produced to international packaging standards for safety and compatibility across industries.