Silver is one of those metals that tends to tarnish very easily, especially if it exposed to the air or if people are handling it. As both of these things are hard to prevent, silver objects start to develop blackish patches and generally do not look as nice as they can.
We have a silver coffee pot that sits on a tray outside the Dining room. We moved it into the kitchen for Christmas and realized that, in better lighting, it was in need of a clean.
We are careful about using chemicals to clean objects because, more often than not, chemicals tend to take off layers of material. We dust items regularly, using pony hair and hogs hair brushes and sometimes specially designated cloths. But the coffee pot had tarnished beyond that point (or at least the point where it would take several hours to clean one small area).
We use a product called Silver Dip to clean silver objects. It works by removing a single layer of silver (along with all of the tarnish) to reveal the clean silver underneath.
Using a small piece of cotton wool dipped in silver dip, I rubbed a small area of the coffee pot gently and in a circular movement until all the tarnish had gone. Then using another piece of cotton wool, but dipped in water, I rubbed the same area in a circular motion to remove any left over silver dip. If silver dip is left on and not cleaned off it can go through several layers of silver and ruin the object. Any excess water is removed by dabbing tissue paper on it. This is then repeated until the
whole of the object is clean. To get into the small nooks and crannies along the lip and the handle, I used a cotton wool bud, repeating the above. The pot was then buffed to bring out the shine.