A concept for a domestic plastic waste up-cycler that uses mycelium to break down plastic packaging waste. There is a fundamental contradiction between the need for disposable plastic packaging and the need for environmental sustainability. By its very definition, packaging must be robust and able to withstand attack by the environment over months or years. But biodegradability is precisely the property of yielding to attack by the environment in a reasonably short space of time. Beyond bacteria, one class of life stands out as a powerful decomposer: the fungus.