I am living in a temporary apartment while my house is finished up. All my espresso gear is in storage except for my Cimbali Max and press pot. The one problem I have had with a press is that the coffee always has a bitter twang ala over extracted. I have changed grind, steep, temperature and it has been reduced but it is still there.
A few months ago there was a thread about skimming the grounds out of the press
before you actually press the coffee. I have been doing that, and it made a marked improvement in the cup but there was still that slight bitter twang. I do not like bitter in my coffee. I refrained from drinking coffee just because I found it bitter. Then one day I visited Metropolis in Chicago on a business trip and my eyes were open to what coffee should be like.
Well back to my point. Skimming the grounds from the press prior to pressing did cut the bitter substantially but it is just tiresome to get a couple of spoons and skim the coffee out. So a few days ago I had the idea of reversing the press. Instead of putting the coffee in, then the water, then the press I reversed it. I put in the press, put the coffee on top of the press which is half way down the glass so I can move the lid off to the side. Then I pour my water onto the coffee and push the press down. That way the grounds are floating above the screen. Give it the summary stir, or rather swirl in my case, then raise the press. That collects all the coffee on top of the screen and I discard it into the sink. Then I rinse the press under some hot water, put it back in and press it to the bottom to catch any lingering grit.
The results have been wonderful. I get a very clean and bitter free cup of coffee but with the body of a press pot. Now I still get the press pot sludge in the bottom of the cup, but that has never bothered me. It may sound more complicated then simply skimming the ground off the top but it is not, and it is faster. You just load the top of the press with the coffee, fill with water and steep then pull the entire ting out, grinds and all. You could even skip putting the press back in but I still do. Give it try, you may like the coffee even better.