Indonesia is a country inhabited by the largest Muslim population in the world. The need for halal products is also very important for the running of a Muslim's life. Saccharomyces cerevisiae plays a major role in biotechnology, both traditional and modern such as in genetic engineering techniques. The purpose of this practicum is to find out how to make sticky rice tape and to determine the effect of yeast concentration on the level of sweetness of the sticky rice tape produced. These microbes have long been used in making long-lasting food. Examples of halal products include bread, tape and bioethanol. Meanwhile, haram products include intoxicating drinks such as sake. Modern biotechnology supports environmentally friendly bioethanol production.