Look for models with adjustable baskets and flexible internal layouts for varying load requirements. For example, a tilting upper basket allows large 30cm diameter plates in the lower basket and extra flaps can be raised or lowered to cater for small items or large pans.

Buying this "service deal" can be expensive but if you feel happier knowing that you are protected from breakdown for a few years, shop around insurance brokers to see how prices compare.

Installation of a food waste disposer is straightforward, either in a new or existing kitchen but we would advise you look for brands that simply lock into place. Food waste disposers are also extremely durable and a good quality manufacturer will offer warranties of up to five years.