Travelers are advised to avoid consumption of beverages obtained from the street. It is more advisable to drink bottled or boiled water or carbonated drinks in cans or bottles than drinking from tap water, fountain drink or locally prepared fruit juices. Travelers are advised to boil tap water and add a pinch of salt before drinking in order to purify and improve the taste. Dropping a chemical disinfectant with iodine is also another way to treat water when boiling can not be done. Portable filters are also an alternative to insure that the water is safe to drink.