dried kelp they wrapped meats like fish, muttonbird in it and smoked it over a fire
you use additives to preserve your food
I put a very detailed answer on a question like this one (how did the maori use to cook food) about the steps of hangi and the other types of cooking
Which of the following is used as a food preservative
To preserve the food
The purpose of canning food, whether commercially or at home, is to preserve the food for later use.
Salting, Freezing, And Covering etc...
Kiwis were hunted by Maoris for their feathers, but now the Maoris collect the feathers from kiwis that naturally died (died of old age).
They put them in the fridge (Mexico has electricity, you know).
Preserve means to keep something fresh (if food) for later use.
to LIVE on to LIVE off to keep LIVING
water can not preserve food it attracts mold
The best ways to preserve food are to: Freeze the food Boiling or blanch food at high temperatures Use alcohol, acid, and salt and sugar in high concentrations Exclude air Remove moisture