How should I store nuts and seeds?
Sealed, cool and dark. For larger quantities, keep the bulk in the freezer and decant what you need - they freeze without any loss.
How do I know if nuts have gone rancid?
Smell them. Rancid nuts turn sharp and faintly like old paint. Walnuts and pine nuts go first, so check those before using.
Do I need to grind chia and flax?
Flax yes - whole seeds largely pass through undigested. Chia works either way, since it gels when it meets liquid.
Are these organic?
Most of the range is, with the certifier named on the pack. The filters above will narrow it to organic only.