- Salter's Boston kettle has a 360-degree swivel base, so it's easier to avoid spills- Its 1.7 l capacity is plenty for a tea party or just a big old family pot of pasta- With 3000 W power, you won't be waiting around to get your coffee fix in the morning- Stick your feet up and let the kettle take care of itself with its auto-shut off and boil-dry sensor- It's easier to stay under the max fill line when you've got a water level indicator