Someone from another website i had posted kindly sent me link to scientific paper on the topic of old methods of food preservation. Here is a paragraph concerning the above post and here is the link http://www.aseanbiotechnology.info/Abstract/21030270.pdf
Pit fermentations
Lactic acid fermentations include the “pit” fermentations in the
South Pacific Islands. They have been used for centuries by the
Polynesians to store and preserve breadfruit, taro, banana and
cassava tubers (Steinkraus 1986; Aalbersberg and others 1988).
The fermented pastes or whole fruits, sometimes punctured, are
placed in leaf-lined pits. The pits are covered with leaves and the
pits are sealed. It has recently been found that pit fermentations
are lactic acid fermentations (Aalbersberg and others 1988) The
low pH and anaerobic conditions account for the stability of the
foods. An abandoned pit estimated to be about 300 years old
contained breadfruit still in edible condition.
In Ethiopia, pulp of the false banana (Ensete ventricosum) is
also fermented in pits (Steinkraus 1983a). It undergoes lactic acid
fermentation and is preserved until the pit is opened. Then the
mash is used to prepare a flat bread kocho-a staple in the diet of
millions of Ethiopians.;
So did you read that part, 300 year old edible food!!! Ensete takes quite a bit of work to process, than the other foods mentions. But it can tolerate cooler tempertures. Could be grown outside in zone 9, and in colder regions in pots and brought in the house or greenhouse for a year or two before being processed and put in the pit.
This is a living food.
Most of these foods mentioned in the paper contain good kind bacteria for proper gut flora that can help with immune system and other health benefits. Great for preppers, long term food storage system along with health benefits. I have 2 young maafala breadfruit trees and some bananas. Aloha, Kay