This is the 3rd time we emptied our home made fertilizer since we started. Our garden is still frozen and I think this is the coldest month for winter so far. Anyway, the only thing we don't put in our food scraps are any kind of meat and milk products. I don't think what we collected this year will be not enough. However, if we keep on doing this, eventually we will have enough for the whole garden. Maybe by next winter our garden dirt will have enough.