Cachets are used to mask the unpleasant taste of certain medicines. The unfavourable tastes were initially masked in foods, such as bread and jam. This mode of cachet was eventually replaced by thin leaflets made from flour and water.
Cachets made with this machine would have been composed of rice paper. The first disc was placed in one of the circular holders, then powder was then filtered in, and the second disc was sealed on top with the roller, which was moistened with water.
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