Which type of cork should I use?

There are quite  few different types of corks that are on the market and the decision of which one to use is based on what you are intending to do with your wine. If you are planning on drinking your wine soon after bottling then you can just use a cheap agglomerate cork. If you are planning on ageing your wine for a long time then you are going to want to use a high quality natural cork. The natural corks have been keeping wine properly sealed for millennia.