Sireng by Joafood was established in 2015. It derived its business license from public health service and halal certification Indonesia council of Ulama (MUI). Sireng stands for Nasi Isi Goreng or Filled Fried Rice. Rice is a staple food that contains carbohydrates as one of the food sources. The customers of Sireng are primarily young mothers who have sons or daughters with rice consuming difficulty because this product does not contain harmful chemicals. Moreover, the Sireng advertisement has been shown on several private televisions themed about child nutrition.
Sireng smoked beef adalah Nasi isi di goreng dengan isian smoked beef slice dan keju cheddar yang gurih. Penyajiannya sangat mudah yaitu tinggal digoreng.