1) Milk to taste Method: first clean with detergent and then to plastic cups ,soup into two key fresh milk, covered with lid, shake, so that every corner Cup contact with the milk, about 1 minute Finally Discard milk, will clean cup.
  2) To taste Method: first clean with detergent, then Add to fresh, covered with lid, take about 3-4 hours to clean span.
   If the above method can not remove the smell of plastic cups, and into the cup of hot water is circulated a strong irritating smell, it will not consider this drink cups, plastic cups may be made well, perhaps using it to drink water Will be harmful to health. 

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