How much does 30 days supplies weigh?

Today I repacked the boat with just about everything I am taking on the trip. Including 18 litres (18kgs) of water the total load came to 60.5kgs. And amazingly I had 27kgs in the front hatch and 27.5kgs in the day and rear hatch with a further 6 litres of water in a Dromedary bag in the cockpit so a perfectly balanced boat!