Blaze's dough and red sauce are both built on extra virgin olive oil, but the default shredded mozzarella carries canola oil, so 45 of the 56 items in Blaze's own ingredient database contain a seed oil. Red Vine is the only signature pizza that is genuinely seed-oil-free, because it swaps in fresh Ovalini mozzarella.
Blaze is the rare pizza chain whose base is genuinely clean: Classic Dough is flour, water, durum semolina, sugar, salt, spice, extra virgin olive oil and yeast, and Red Sauce is vine ripe tomatoes, water, extra virgin olive oil, salt, spices, citric acid and garlic. The catch is the cheese. Shredded Mozzarella lists canola oil as an anti-caking agent, so a seed oil rides onto almost every pizza. 45 of the 56 recipe rows in Blaze's own ingredient database contain a seed oil. The 11 that do not are Red Vine in all three sizes, Caprese and Fresh Berry salads in entree and side, the Spring Green side salad, S'more Pie, and two dough-only base rows. Red Vine is the one signature pizza that is truly clean, because it uses Ovalini Mozzarella instead of shredded. Order that, or build your own on Classic Dough with Ovalini and the olive oil drizzle. Avoid the Butter Oil, which is soybean oil, hydrogenated soybean oil, TBHQ and dimethylpolysiloxane.