With 75 g black oncom starter you can make about 25kg of final oncom. This oncom starter has a shelf-life of 1 year. Ingredients: rice, rhizopus oligosporus spores. Suitable for vegetarians and vegans. This oncom starter can also be used as tempeh starter to make non-soy tempeh, because it is free of soy and grows well on non-soy substrates, such as cereals, lentils, peas and other legumes. It may produce black spots after about 24 hours of fermentation, hence its name black oncom starter.