Molasses can also be sulphured or unsulphured. Sulphur is added to sugar cane juice during production to act as a preservative. This kills unwanted bacteria, and even to helps whiten the sugar crystals. Unsulphured molasses is a thick, dark sweetener that can be used in a wide range of recipes and foods. The way unsulphured molasses is processed changes the taste it has a more bittersweet flavor. It is mostly found in health food stores because it contains the most nutrients of the three types available.
The three varieties of molasses are light, dark and blackstrap. When sugar cane is being processed into sugar, the juice from crushed or pressed sugar cane is boiled to prompt the crystallization process. The liquid resulting from the first cooking of the sugar cane syrup is light molasses. It has pretty high sugar content and a fairly mild flavor. Dark molasses is the liquid resulting from the second boiling of the sugar cane juice. It is less sweet, quite a bit thicker and darker in color than light molasses. Dark molasses is sometimes called “robust molasses,” as well. Blackstrap molasses is the darkest, thickest and least sweet of the types of molasses and is the result of the third and final boiling of the sugar cane juice (http://bakingbites.com/2008/10/which-molasses-should-i-use/). Blackstrap molasses contains trace amounts of vitamins and significant amounts of several minerals. It is a source of calcium, magnesium,potassium, and iron; one