Tuesday, January 22, 2013

Garden: Coffee grounds

Stopped by a Starbucks yesterday and popped in to ask if they had any used coffee grounds to spare for composting.

Without question, the staff promptly opened the tray under their espresso machine and filling a whole paper bag full with the used grounds. Thank you Starbucks for your recycling and waste reduction policy!

So this morning, we gave our entire garden and our compost area a good dose of coffee grounds.



Why coffee?
According to this article:
  • Worms love them, so it's useful for attracting and breeding worms, which speeds up the composting process
  • It's a good soil conditioner and a good "green" nitrogen source
Point to note:
  • Coffee's acidity is removed during the brewing process, so it's essentially neutral
  • We should limit the coffee grounds to no more than 25% of the volume of the compost heap

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