Tapai (also tapay or tape) is a traditional fermented preparation of rice or other starchy foods, and is found throughout much of Southeast Asia, especially in Austronesian cultures, and parts of East Asia. It refers to both the alcoholic paste and the alcoholic beverage derived from it. It has a sweet or sour taste and can be eaten as is, as ingredients for traditional recipes, or fermented further to make rice wine (which in some cultures is also called tapai). Tapai is traditionally made with white rice or glutinous rice, but can also be made from a variety of carbohydrate sources, including cassava and potatoes. Fermentation is performed by a variety of moulds including Aspergillus oryzae, Rhizopus oryzae, Amylomyces rouxii or Mucor species, and yeasts including Saccharomyces cerevisiae, and Saccharomycopsis fibuliger, Endomycopsis burtonii and others, along with bacteria.
Etymology Tapai is derived from Proto-Malayo-Polynesian *tapay ("fermented [food]"), which in turn is derived from Proto-Austronesian *tapaJ ("fermented [food]"). Derived cognates has come to refer to a wide variety of fermented food throughout Austronesia, including yeasted bread and rice wine. Proto-Malayo-Polynesian *tapay-an also refers to large earthen jars originally used for this fermentation process. Cognates in modern Austronesian languages include tapayan (Tagalog), tapayan (Maguindanaon), tepayan (Iban), and tempayan (Javanese and Malay).
Starter culture Tapai is made by inoculating a carbohydrate source with the required microorganisms in a starter culture. This culture has different names in different regions, shown in the table below. The culture can be naturally captured from the wild, by mixing rice flour with ground spices (include garlic, pepper, chilli, cinnamon), cane sugar or coconut water, slices of ginger or ginger extract, and water to make a dough. The dough is pressed into round cakes, about 3 cm across and 1 cm thick, and left to incubate on trays with banana leaves under and over them for two to three days. They are then dried and stored, ready for their next use.
Preparation
Traditional Traditionally, cooked white rice or glutinous rice are fermented in tapayan jars. Depending on the length of time and various processes, tapai will result in a large number of end products. These include slightly fermented dough used for rice cakes (Filipino galapong); dried fermented cakes (Indonesian brem cakes); fermented cooked rice (Filipino buro, tapay, inuruban, binubudan, binuboran; Indonesian/Malaysian tapai or tape); fermented rice with shrimp (Filipino buro, balaobalao, balobalo, tag-ilo); fermented rice with fish (Filipino buro); or various rice wines (Filipino tapuy, tapey, bubod, basi, pangasi; Indonesian brem wine).
Modern
Fermented rice gruel/paste
In modern times, in addition to rice, different types of carbohydrates such as cassava or sweet potatoes can also be used. The general process is to wash and cook the target food, cool to about 30 °C (86 °F), mix in some powdered starter culture, and rest in covered jars for one to two days. With cassava and sweet potato, the tubers are washed and peeled before cooking, then layered in baskets with starter culture sprinkled over each layer. The finished gruel will taste sweet with a hint of alcohol, and can be consumed as is, or left for several days more to become more sour. In Thailand, khao mak (Thai: ข้าวหมาก, pronounced [kʰâw màːk]), also known as "Thai fermented sweet rice dessert", is fermented for several days, resulting in an alcohol content of just over one per cent. It has a noticeable alcohol flavour with a sweet taste and is often packaged in banana leaves. Look pang is the traditional fermentation starter used to make khao mak. Look pang is a starch ball which contains mold (Aspergillus species, Rhizopus species, and Mucor species) and yeast (Saccharomyces cerevisiae and Candida species) inoculum in rice flour mixed with herbs such as pepper, garlic and galangal as an antibacterial agent. Its shape is a semicircular with 3–4 cm diameter. In the Khuan Don District, Satun Province it is called tapai.
Rice wine
Within Borneo Island, tapai are specifically known as the local rice wine among the indigenous Kadazan-Dusun, Murut, Paitan, and Rungus. It is considered an integral part of the indigenous communal gatherings and festivals, especially during Kaamatan. In Sabah, tapai is considered a local drink speciality together with bahar, lihing and montoku. Another name for the tapai in Sabah is the tumpung, where it uses a single container to sip, rather than the siopon method from the jar as a precautionary measure to avoid contracting contractable diseases such as tuberculosis (TB).
Uses in cuisine
Brunei, Malaysia, and Singapore
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