A while ago I heard about a method for brewing coffee where you cold brew a pound at a time and make a concentrate that can be kept for a couple weeks. After researching it and trying it out a couple times here is what I have figured out.

1. Take 1lb of coffee and put it in a big jug or jar with 9 cups of water and give it a shake.
   
2. Let it sit for 10-12 hours on the counter.
   
3. filter it into a jar(s). It will keep for 2 weeks.

To drink I like a 2:1 ratio (2 parts water to 1 part java juice) for hot coffee use boiling water, or cold for iced coffee. It's that simple. The above recipe will almost fill two 1 quart jars.

Tips

• Use glass or metal containers so they don't smell like coffee forever.
  
• Grind the coffee at the store. Grinding a pound in a home grinder takes a bunch of loads and sucks.
  
• The coffee concentrate works great for cooking coffee flavored things.
  
• Cold brew has less caffeine and acidity.
  
• Because there is no heat there is no bitterness.