Roast chestnuts in the UK are fine - are you getting something different over there? True, you can get an occasional bad one - they're a bit discoloured when you peel them. They need salt, though. And they form part of many people's traditional Christmas dinner, either boiled or in incorporated into the stuffing.

Mandarins are what we call they small seedless kind of tangerine. They are much easier to handle than tangerines but not so strong on flavour. When we were in Thailand and bought fresh orange juice we found it to be from clementines. Oranges to us means navels or things of a similar size.

My favourite citrus has got to be the pomelo. We got a taste for them in Thailand and sometimes buy one from the Chinese supermarket, although they are much more expensive over here.