Yes, it can ferment for too long in the primary if the death of the yeast begins the autolysis process. However, that being said, the length of time you ‘re looking at in the primary is actually very short. I usually let my beers ferment out about three weeks on average in the primary with no problems.
But rest assured there is no need to invest a fortune to get started making your own beer . The easiest way to go is to just buy a basic homebrewing kit. Now that you have the equipment taken care of, let’s go over the main ingredients of beer . There are only four: hops, grains (and/or malt extract), yeast, and water.