High-fibre composting is a system which has been developed and trialled at the Centre for Alternative Technology (CAT) in Wales with promising results so far. It consists of adding all cardboard (including packaging, toilet roll tubes, cereal boxes), newspaper, magazines, etc. to the compost pile. Such material should be distributed thoroughly throughout the heap, and well stirred through (mixed) in order to increase its surface area and improve aeration in the heap. It would be ideal for adding where there is a large proportion of nitrogenous material, e.g., grass mowings, kitchen vegetable wastes, and so on, and is thus well-suited to household-scale composting.