Cauliflower offers numerous health benefits, especially when eaten in serving sizes of 1 1/2 cups or larger. Some of the vitamins you can find in a head of cauliflower include B vitamins and vitamins K and C, along with other healthy things like omega-3 fatty acids, dietary fibre, protein, potassium, magnesium and phosphorous. However, you won't be able to thoroughly enjoy the cauliflower or all its health benefits if the head of cauliflower has gone bad.
Look at the leaves surrounding the head of cauliflower if you're picking it fresh. These leaves should be vibrant and green. Wilted or browning leaves can mean the cauliflower is no longer fresh and starting to go bad.
Check out the colour of the cauliflower. White is the most common colour, followed by light green and purple. Other colours, such as brown or yellow, could mean the head of cauliflower is bad.
Touch the cauliflower. The texture should be spongy and a bit firm to the touch. When the head of cauliflower goes bad, it can get soft.
Watch out for cauliflower that has brown spots. These spots could be rotten.
For best results with cauliflower, buy or pick it between the months of December and March and eat it within 2 days.