There are different schools of thought on how to infuse oils with cannabis. I have provided a fast version that takes little preparation. There is no reason to keep the leftover organic material once you have simmered the cannabis in the oil, so make sure to discard the plant material in an organic waste-bin or compost if you have. If you want to make larger batches, then you can increase the ingredients by whatever multiplier you desire. Keep in mind that storage varies between oils and it is not always possible to keep a batch going for more than a few weeks.