Coconut oils can be classified into two general categories: virgin coconut oils and refined coconut oils. Both categories refer to pure coconut oil with nothing else added, and the main difference is in the production and refining process to make coconut oil Virgin Coconut Oil There is no industry standard definition for "Virgin Coconut Oil" as there is in the olive oil industry for "Virgin" and "Extra Virgin" olive oil. Today, there are many coconut oils on the market that are labeled as "Virgin Coconut Oil." Virgin Coconut Oil can only be achieved by using fresh coconut meat or what is called non-copra. Chemicals and high heating are not used in further refining, since the natural, pure coconut oil is very stable with a shelf life of several years. There are currently two main processes of manufacturing Virgin Coconut Oil: 1. Quick drying of fresh coconut meat which is then used to press out the oil. Using this method, the coconut meat is quick dried, and the oil is then pressed out via mechanical means. This is the most common type of "Virgin" or "Extra Virgin" coconut oil sold in the market today that you will find in stores. It is mass-produced 2. Wet-milling. With this method the oil is extracted from fresh coconut meat without drying first. "Coconut milk" is expressed first by pressing. The oil is then further separated from the water. Methods which can be used to separate the oil from the water include boiling, fermentation, refrigeration, enzymes and mechanical centrifuge. Refined Coconut Oil Most commercial grade coconut oils are made from copra. Copra is basically the dried kernel (meat) of the coconut. It can be made by: smoke drying, sun drying, or kiln drying , or derivatives or a combination of these three. If standard copra is used as a starting material, the unrefined coconut oil extracted from copra is not suitable for consumption and must be purified, that is refined. This is because the way most copra is dried is not sanitary. The standard end product made from copra is RBD coconut oil. RBD stands for refined, bleached, and deodorized. High heat is used to deodorize the oil, and the oil is typically filtered through (bleaching) clays to remove impurities. Sodium hydroxide is generally used to remove free fatty acids and prolong shelf life. This is the most common way to mass-produce coconut oil. The older way of producing refined coconut oil was through physical/mechanical refining More modern methods also use chemical solvents to extract all the oil from the copra for higher yields.
Posted on: Wed, 04 Sep 2013 13:49:56 +0000
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