from the linked site:
Not all foods, however, are right for dry pack canning. Only items that contain less than 10% moisture can be dry pack canned. Good candidates for dry pack are:
Beans
Flour
Pasta
Oats
Rice
Sugar
Wheat
Powdered milk (non-fat)
Check carefully which products are safe for dry pack canning. Foods with higher moisture or oil content, such as nuts, cereal, brown rice, or whole wheat, are not recommended.
Other foods like brown sugar, baking powder, and oil should also not be dry packed. They should be kept in their original containers and rotated often.
I read that and have come to the conclusion that this person was simply wrong. I hoping that I was wrong and it was possible because nuts would be a great food to store.
We did plant some almond trees in our orchard and hope to be harvesting fresh almonds in a few years!