This is a good question. We recommend in this case that you let the bin sit and ferment for up to an extra week. Its not at all essential to do this, but it will ensure a more complete fermentation, and as a result, a slightly better pre-compost.
But if you are in a hurry to empty the bin, then two weeks will still be fine, go ahead and bury it. It will simply take up to an extra week to assimilate into the soil web if it is not fully fermented, that’s all.