sales of butter, purchased it in bulk. Then I froze excess quantities to save money and reduce the chance of my butter spoiling.
Light, air, and varying temperatures can all contribute to spoilage. The less exposure butter has to these elements, the longer it will last.
Is Your Butter Bad?
Your senses are your best tool when determining whether butter has turned bad.
First, smell. Fresh butter will generally have a mild creamy odor. If it smells sour, pungent, or slightly like aged cheese, it is probably rancid. Personally, I don’t take any chances with butter that even has a slightly “off” odor.
Next, examine the color of the butter. Butter that has been exposed to the air may develop dark yellowish-brown edges. This is generally a result of oxidation, and you can often trim the edges off. However, if you observe mold spots (green, gray, or black) on the
