That’s really up to you. If you cook a lot and produce a lot of food waste, such as during at-home canning, you can easily fill a bokashi bucket in an afternoon. If you don’t cook often and don’t want to add yard waste to your bin, your bokashi bin will take much longer to fill. Although it’s difficult to say for certain, on average when used regularly, a single 5-gallon bucket usually takes one to two weeks to fill.