a) 1900s
b) 1950s
c) 1850s
d) 2000
Answer: b
Explanation: Retort pouch was first developed in 1950s. A retort pouch is a packaging material, composed of different layers – Polypropylene (food contact layer), Nylon (Abrasion Resistance layer), Aluminium foil (Barrier Layer) and Polyester (outside layer). In 1950s, the retort pouch for heat-processed foods was developed originally for the US military, to pack Ready to Eat food items.
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