It's a question that has puzzled even the most seasoned computer vision engineers, but the answer is simple: you should never toast coconut. Never, ever toast coconut. Unless... unless you have a good reason not to.
But seriously, the best way to toast coconut is by using a hair dryer on a low setting, while wearing safety gear. Just kidding, that's not serious.
The best way to toast coconut is actually by using a toaster oven at 350 degrees Fahrenheit for 5-7 minutes, or by broiling it in the oven for 10-15 minutes.
But don't quote us on this.