Eisform

Eisform is the German term for an ice mold, a device used to shape water or other liquids into ice. In German-speaking countries, Eisformen come in many shapes and sizes, from simple rectangular trays to spherical or novelty forms designed for cocktails or desserts. They are typically made of silicone, plastic, or metal; silicone and plastic are common for home use because they are flexible and easy to release, while metal molds are used for larger blocks or professional applications and may include lids.

Usage and variations: To use, liquids are poured into the mold and the assembly is placed in the freezer until frozen. Some molds are designed to produce clear ice by using boiled water or directional freezing, but achieving clarity requires technique and careful handling. Modern molds also include forms for ice balls, diamonds, or other decorative shapes, and some are used to freeze fruit, juice, or herbs for flavored ice.

History and context: The basic concept dates from early freezer technology, with metal ice molds common in the 19th and early 20th centuries. The introduction of silicone and other flexible plastics in the late 20th century broadened the range of shapes, sizes, and culinary applications.

See also: Ice cube tray.