“Oh my gosh, look at the color of it!” See the newly invented blue cheese that shocks Stanley Tucci. This Sunday at 9 p.m. ET/PT, #SearchingForItaly heads to Puglia in southern Italy. | CNN

No cheese is naturally orange. Plot twist, right? That bright color comes from annatto, a natural dye made from the seeds of the achiote tree. Cheesemakers started using it centuries ago, and here’s why: high-quality cheese crafted in the summer from pasture-fed cows produced milk with a more golden hue. When this look became highly sought-after, makers started adding annatto to replicate that premium look year-round. Eventually, people came to expect it! While it’s most common in cheddar, it ca