On Thu, 12 May 2011 20:29:06 +0100, "Pete C"
wrote:

They contain oxalic acid which breaks down in the heap. Perfectly safe.
Pete C

As for putting stuff on the compost heap, ref Monty's compost heaps,
he said on GW, that the ratio of paper to green leaf ?
I thought he said 20 to one , do you think he meant to say 20% ?

Thanks