By law manufacturers must disclose the energy efficiency of their appliances, rated A to G. These are usually displayed prominently in showrooms. The better the rating, the more energy efficient the appliance is - good for both the environment and your pocket.

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.

A dull knife is more dangerous than a sharp one, because you apply to it more pressure and force to cut through foods. It can easily slip out of place as you use it and you can harm yourself. Keep your knives in good working condition by sharpening according to their use and time. There's no specified amount of time, because knives vary as much as their use; although, you can easily determine if they need sharpening by the way they cut/slice foods. If a knife can slice through a tomato and tear the skin, then it needs sharpening. If, on the other hand, the cut is clean and quick without any tears, then it needs not be sharpened.