The purpose of this research were to know the effect of boiling time and addition of CaCO3 concentration on the production of lotus chips (Nelumbo nucifera). This study used a factorial randomized block design (RAKF) with 2 treatment factors, namely boiling time (A) and CaCO3 concentration (B) with 2 replications. The treatment used boiling time A1 (60 minutes), A2 (90 minutes), A3 (120 minutes…