May 12, 2019

What you see: A smeary white crust on your aged cheddar. You may be paranoid that it's mold. 
What it is: Calcium lactate crystals!
Eat or toss: Eat! Like the crystals that can appear in aged Italian-style cheeses, this white crusting is harmless.

The sto...

February 20, 2019

What you see: Small holes in the aluminum foil you used to seal something up and silver-colored blobs on your food

What it is: A chemical reaction! The foil is reacting with something in the food to form a type of aluminum salt.
Eat or toss? Eat! Well, not the foil, or...

September 24, 2018

What you see: White dots in your aged Italian-style or gouda cheeses that are clearly not mold
What it is: Crystals of an amino acid called tyrosine
Eat or toss: Eat! If an aged cheese and a textured mouthfeel are what you’re looking for, you may even want to count you...

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