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...system known as a solera. Effectively the barrels are placed on top of each other and the young sherry added to the top barrels. Every so often wine is moved from one barrel to a lower barrel, but only small amounts at a time. Effectively matured wine is tapped from the bottom barrel as newer wine moves from higher to lower barrels. The process is carefully controlled so...

...system diseases; polyhydroxyalkanoates, which are used to make bioplastics; and a wide range of antioxidants which can be used in healthcare or added to fuel and lubricants to lengthen their lifetimes. Compost coffee? Coffee grounds are rich in nitrogen, a vital nutrient for plant growth. This is known by a number of coffee shops which will provide their used coffee to...