into ice crystals, but water associated with solutes—in the case of a soup stock, gelatin, fat, and flavor compounds—remains unfrozen to much lower temperatures; in practice, the freezing temperature of this associated water is well below the reach of conventional freezers. Thus, gelatin filtration works by freezing a gelatin-containing, water-based solution and then allowing it to thaw in a mesh strainer at just above the freezing temperature of water. The gelatin and other solutes concentrate in the unfrozen, associated water, and the gelatin forms a stable network through cross-linking, just as it would in a standard gel. This stable network acts as a filter, trapping large particles of fat or protein, while allowing water and smaller, flavor-active compounds to pass. As the bulk water melts, it passes first through the gelatin network and then through the mesh strainer, into a receiving vessel. Because the temperature is kept just above the freezing point, the bulk water melts slowly and, as it is strained into a separate vessel, it is never in contact with the gelatin for long enough to begin dissolving the gelatin network. After all of the bulk water melts, the gelatin network remains in the strainer with the trapped macroscopic particles, and the clarified stock (the bulk water and flavor compounds) is collected in the receiving vessel. Because gelatin-filtered consommés do not require a creation of an egg-white raft as in traditional consommés, they are less wasteful. The technique is also applicable to a wider range of "stocks": since no heating is required, heat-sensitive materials, such as fruit juices, can be clarified by first adding a small amount of gelatin, then applying gelatin filtration. A number of non-traditional consommés, not based on stock, have been created using this method, including a "pretzel consommé", a "Doritos consommé", a "brown butter consommé", and a "spiced pumpkin consommé". Loss of gelatin essential to gelatin filtration results in a consommé with significantly less-rich mouthfeel than a traditional consommé, and also affects the properties of the consommé upon chilling. A traditional consommé gels when chilled, while a gelatin-filtered consommé does not. History Clarified broths called consommés have been in use since the Middle Ages, taking many forms from simple soups, to soups made from the meat of a wide variety of less-common animals. A special type of consommé that was boiled solely with tendons and cartilage without the addition of salt was sweetened, flavoured