Leviticus 2:11-13

11“No grain offering that you present to the Lord is to be made with yeast, for you are not to burn any yeast or honey as a food offering to the Lord.

12You may present them to the Lord as an offering of firstfruits, but they are not to be offered on the altar as a pleasing aroma.

13You are to season each of your grain offerings with salt; you must not omit from your grain offering the salt of the covenant with your God. You are to present salt with each of your offerings.