Careful handling is the best method of maintaining silver, so if you use your silverware regularly, wash it afterwards by hand in warm, soapy water (or a mild detergent) and dry with a soft cloth. That should keep it sparkling.
There are many products on the market that make cleaning easy, such as silver gloves or cloths (most of the dealers sell these).
Cutlery can be put in the dishwasher but it’s best to hand wash knives,
silver or otherwise as constant dishwasher action can loosen handles and
blunt cutting edges. Specially lined cutlery canteen boxes will keep pieces
bright between use. Rotate the pieces used so that all pieces develop the patina equally. Or you can wrap your every day cutlery in cling film or in a specially-designed fabric roll to prevent the air getting to it. A cool place is
best for storage.
Certain foods will tarnish silver such as curry, egg yolk, salt, citrus juices or mustard. Wash as soon after use as possible.
Help slow the tarnishing process by wrapping smaller items of silver in acid-free tissue paper and storing inside an airtight bag (squash as much of the air out as you can).
Silver on show that is not used regularly should only need cleaning with product about every six weeks. Silvo liquid will clean and protect against tarnish. Dust with a silver glove or cloth in between times. Avoid using wadding on silver plate as this can be abrasive on the surface plating.
Silver gilt items will just need a very occasional buff with a chamois leather.
Silver trophies or ceremonial pieces that need to be on display can be lacquered with a product such as Monarch Shield to keep their shine.