Thanks for your question. Each bag provides enough compost accelerator (bokashi bran) to ferment 5 full kitchen composters. For an average family, this is at least 3 to 4 months of food scraps. Two bags will last a typical family 6 to 8 months. A single person will likely produce less food waste than an average family. Therefore, you could expect two bags of bokashi bran to last you longer than 8 months, possibly up to 12 months depending on the amount of food waste you produce.