Reference for Terumot 10:4

תַּנּוּר שֶׁהִסִּיקוֹ בְכַמּוֹן שֶׁל תְּרוּמָה וְאָפָה בוֹ, הַפַּת מֻתֶּרֶת, שֶׁאֵין טַעַם כַּמּוֹן, אֶלָּא רֵיחַ כַּמּוֹן:

An oven that was heated with cumin of <i>Terumah</i> and [bread was] baked in it, the bread is permitted, because it retains not the flavor of cumin, but the smell of the cumin.

Jastrow