When sterilizing your loop in the Bunsen burner, the flame should be colored
Rationale:
🔶 Blue — This is correct because the hottest, most efficient part of a Bunsen burner flame is the blue cone, which provides the necessary heat to sterilize the loop until red-hot—
🔶 Yellow — This is incorrect because a yellow flame is a “safety flame” with incomplete combustion, cooler, and sooty, making it unsuitable for sterilization—
🔶 Orange — This is incorrect because an orange flame also indicates incomplete combustion and insufficient heat—
🔶 Red — This is incorrect because the flame itself is never red; instead, the loop glows red-hot after being heated in the blue flame—