Mashing extracts less than what ___%, by weight, of the malt in a beer recipe?

An ideal way to go light on resources is to buy a small, advanced brewing system with a group of friends that can yield several batches from a single brew day

____________ is a philosophy that encourages the redesign of resource life cycles so that all products are reused. Any trash sent to landfills is minimal. The process recommended is one similar to the way that resources are reused in nature.

True or False: Refrigerators are often the most energy intensive appliance in the home.