Apo is commonly produced in households of northeastern states of
Arunachal Pradesh and
Assam in India. Although distinctive methods for brewing exist across the North-Eastern region of India, the process of fermentation remains the same across these regions, indicating common origins of brewing. As a first step, the rice collected for making beverage is cooked and then mixed with ash from burnt paddy sticks, which makes the mixture black. Once the rice is cooked, it is mixed with the fermenting ingredient E-Pob made out of rice and medicinal plants. Time is taken for the formation of ration changes along with the climate and temperature. During summer, the fermentation took 5–6 days. The fermented mixture is filtered and finally poured into bamboo shoots. During these processes, around 30 medicinal plants use to the beverage along with rice. This includes leaves, creepers, and grass. The total period taken for the production of Apo beer is more than 3 months. Although the alcohol content on the Apo is 18-25% it is more intoxicating in nature. Recent studies indicate the Apo Beer can be economically benefiting the community as the beer provides the entrepreneurial potential to the community as the rice beer produced in Northeast regions, including Apo are high quality in nature.
The Épob (starter cake) The starter cake is one of the most indispensable elements of the Apo beer production process. The Apo beer produced by the Mising community is identified to have various medicinal and therapeutic properties as a result often used during the preparation of starter cake known as épob. The beer-making process in each tribe varies according to the environmental factors and other socio-cultural practices associated with the individual tribes. The making of épob in this regard include the process of collecting a variety of medicinal plant leaves. The leaves collected are dried placing it on a bamboo mat known as époh after cleaning it. Fresh leaves can also be used for making the starter cake for making the beer. The leaves are later ground separately using a wooden tool hand mixer together to make an épob in the shape of oval-shaped balls from the dough made from the mixture. Kuhiar (
Saccharum officinarum), senikuthi (
Scoparia dulcis), bhilongoni (Cyclosorus exlensa), anaras (
pineapple, also known as Ananas comosus), bam kolmou (
Ipomoea species), kopou dhekia, lexuosum Lygodium flexuosum, lai jabori (Drymaria cordata), horumanimuni (
Hydrocotyle sibthorpioides jalokia (
Capsicum annuum), dhapat tita (Clerodendrum viscosum), bormanimuni (
Centella asiatica) etc. are some of the most basic medicinal plants and herbs used for the making of épob.
Folk medicine The
folk medicine beliefs of the starter cake derive from the use of local herbs. Tribes believe that the combination of herbs makes Apo beer an effective agent against various minor diseases. Most of the plants used for the preparation of the beer are indigenous. The varieties of Apo beer in the northeast region of India include methods of infusion and decoction used by the local peoples. == Cultural significance ==