When left in the sun, Teak will turn to a graceful silver appearance which looks stunning.  However, you can at any time bring it back to natural by using a Teak-cleanser or by power washing it.  If you choose to power wash, please use less than 2000psi.  Further, you also have the option of "white-washing" it.  Once it has turned to the silver appearance, simply mix a bucket of bleach and water 50/50 and spray it on the furniture.  After 30 minutes, just hose it off and you will have a sparkling silver/white-washed look.  If you do not care for the aged look, you can opt to seal the Teak.  However, this requires periodic application approximately every two years, if using Royal Teak Collections specially developed Teak sealer.  This will give the teak the look known from boat decks and railings.  Sealer can be wiped on with a cloth, brushed on, or even sprayed on (with an empty Windex-bottle) and left to dry without wiping.
 
Royal Teak is one of the world's largest manufacturer of solid Teak and All-Weather Wicker in the world!  They stand behind their quality products and even offer a 3 year limited warranty...much longer than most companies selling patio furniture!!! 

Beautiful products, durable, functional, affordable AND peace of mind that it will last - enough said!