When describing something that tastes like freezer burn, it is important to use words and phrases that convey the specific characteristics of that taste. Here's a suggestion for describing the taste of freezer burn:
"Freezer burn imparts a distinct flavor that can be described as a combination of stale, dry, and slightly rancid. It often exhibits a bland or dull taste, with hints of cardboard or a metallic tang. There's a notable loss of freshness and vibrancy, resulting in a diminished flavor profile."
Remember to adjust and personalize your description based on the specific context and audience you are addressing.