Folding ability and absorbency

• What is a requirement for materials used in corrugated cardboard coffee cups?

  They must remain rigid and resist folding
• Why do corrugated cardboard coffee cups need to insulate heat?

  To retain hot liquid without burning hands
• What must corrugated cardboard coffee cups not do?

  They must not leak
• What type of products are sandwich containers described as?

  Die cut, flat packed items
• What is the purpose of sandwich containers being easily erected?

  To provide display and packaging for food
• How do sandwich containers help keep food fresh?

  By being waxed inside to resist absorbency
• What feature do sandwich containers have to assist in their use?

  They have crease lines and fold easily
• Why are sandwich containers waxed inside?

  To resist absorbency and maintain food quality