Not sure why powdered foods are worthwhile if you have to add heavy
water to make them? 5 litres per person per day is reasonable.
OK, good for back-up with a long, long life but two weeks (planned trip) starting with fresh foods, fresh meat, fresh veg isn't too bad and moving to canned after a few days is reasonable on
health and variety. After three days stew the lot, what's boiled will last another couple of days. That's the first week covered, then it's survival by inventive
cooking and spices weigh very little and give variety and surprises. Add calories by chocolate, great, and it never goes off bad enough not to eat.
Your body lasts a month without
food, a week without water.
Monitor it carefully, disconnect the
electric pump when long cruising and hand
pump for economical use.
Make
salt water easy to access for preparing and rinsing veg,
washing and rinsing plates etc. The debate seems open on clothes
washing in sea water.