The idea behind eco or green coffins is that they are made using sustainable materials. We don’t use chipboard or solid timbers like oak which grows for 100’s of years. There is a misconception that one of the main reason for choosing “green coffins” is that they break down quicker than traditional coffins - this is not true - willow coffins will last as long or longer than most chipboard coffins in the ground. The oldest coffin ever found in Ireland was a willow coffin from many 1000's of years ago. The lifespan of any buried coffin however varies due to ground conditions.