How the Ancient Kyrgyz Made Soap

In this process, the insoluble grains were left on the filter, while the yellow-brown filtrate was poured into a large cauldron and evaporated. According to chemical analysis, the dry residue contained potassium carbonate, calcium carbonate (CaCO₃), magnesium compounds, silicic acid and its salts (for example, NaSiO₃), among others. This dry residue was called shakar by the Kyrgyz. Shakar was mixed in a certain proportion with melted fat (badger, otter, boar, sheep, goat) and boiled to the desired thickness, then wrapped in cloth.
The quality of the soap depended on two factors: the content of potash in the ash and the quality of the fat. The soap was particularly good if shakar was mixed with badger or otter fat.
In the south of the republic, in Tegerek-Dzhara (now the coal mine of Tash-Kumyr), local residents washed their laundry in a liquid infused with the ash of the plant tushтан (a type of goosefoot), which contained water-soluble carbonates.