These 1kg bags are so you can add more hulls for a fuller pillow. They have a similar feel and behave in the same way as a wheat heat pack but do not put them in the microwave.
The buckwheat is 100% Australian grown via a sustainable no-till farming system. No in-crop spraying with herbicides, insecticides or fungicides occurs and the soil nutrient levels are regularly tested. Safe (heavy metal free) fertilisers are used, with the goal of naturally raising the nutrient level of the soil.