en_tn_condensed/exo/30/35.md

Make it into the form of incense, blended by a perfumer

The phrase with "blended" can be translated in active form. Alternate translation: "Make it into the form of incense that a perfumer has blended" or "A perfumer must blend it into a kind of incense" (See: rc://en/ta/man/jit/figs-activepassive)

blended by a perfumer

Possible meanings are 1) Moses was to have a perfumer do the work or 2) Moses was to do the work himself the way a perfumer would do it. See how you translated these words in Exodus 30:25.