Food Packaging Closures and Sealing Systems Quiz

What is the primary function of a closure in food packaging?

• To enhance the flavor of the contents

• To provide an effective hermetic seal

• To increase the weight of the package

• To make the package visually appealing

Which type of closure is designed to provide evidence of tampering?

• Screw cap

• Cork

• Lug cap

• Roll-on tamper-evident (ROTE) closure

What is the most important closure type used for metal containers?

• Screw cap

• Double seam

• Cork

• Peelable membrane

What is a common material used for closures in glass packaging?

• Rubber

• Paper

• Metal or plastic

• Wood

What type of seal is used for non-vacuum/non-pressure filled products?

• Vacuum seals

• Cold seals

• Normal seals

• Pressure seals

What is the purpose of the squeeze test in seal inspection?

• To measure the temperature of the seal

• To check for leaks or weak seals

• To evaluate the color of the seal

• To assess the aesthetic quality of the package

What can cause seal discoloration during the sealing process?

• Low sealing temperature

• Excessive pressure

• High sealing temperature

• Incorrect material choice

Which type of seal is formed when the inside surface of the film is sealed against itself?

• Lap seal

• Fin seal

• Peelable seal

• Cold seal

What is a characteristic of natural cork used in closures?

• It is only used for plastic bottles

• It is made from synthetic materials

• It provides a good barrier to oxygen

• It is non-compressible

What is the main concern with film folds in heat seals?

• They enhance visual appeal

• They create a leak path

• They reduce production costs

• They improve seal strength