On 2015-12-15, Nick Maclaren wrote:

In article ,
Phil L wrote:

I only compost what my worms can eat, contents of teabags, raw, finely
chopped peelings and leaves, newspapers etc.

That's a difference between a worm bin and a traditional heap, which
I use. I can and do chuck pretty well everything on and, while it
takes longer to break down, almost everything does. I may give up
on the oyster shells, which have lasted the best part of a decade,
though :-)

Avocado skins are pretty worm-resistant, IME.