Grantham Moy Park boss still has drive and determination 20 years on Andrea Carver has been general manager at Moy Park in Grantham for four years. She has been in the food industry for 20 years after completing a degree in food science at Lincoln. Moy Park processes products for three distinct markets â frozen coated products, ready to eat meals and sauces for a variety of customers, from leading retailers to quick service restaurant outlets.