Aldi, the German discount supermarket chain, is set to open its second Long Island store, in Lake Grove, on Thursday and has plans to add a Lindenhurst store early next year, a company official said Monday.

The chain, known for its unadorned, thrifty approach to selling groceries, launched its first Long Island store last August in Bay Shore and drew a strong response from customers, said Bruce Persohn, Aldi's South Windsor division vice president. Customers to that location consistently have traveled 7 to 10 miles to get to the store, he said.

"The customer response in the Bay Shore location has been phenomenal, so it's been pretty easy for us to gather that [the Long Island shopper] is a pretty value-oriented customer," Persohn said.

He said the company will soon begin development of a Lindenhurst location and is targeting an early 2013 opening date.

Aldi stores, which number more than 1,200 in 32 states, typically employ between eight and 10 people and have just shy of 10,000 square feet of sales floor space, the company said.

The Aldi chain in the United States, which is owned by a German trust, sells more than 1,400 items, primarily under its own exclusive brands. The stores accept only cash, debit cards and food stamps.

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As part of its streamlined system, shopping carts require a quarter deposit, which is returned when the customer brings back the cart. That means the store won't lose expensive shopping carts and doesn't have to assign an employee to gather them from the parking lot. Customers are encouraged to bring their own bags. Otherwise, Aldi charges six cents for paper bags, 10 cents for large, heavy-duty plastic bags, 99 cents for insulated, frozen-goods bags and $1.99 for a large "eco-friendly" bag.

Food and other items are stacked in their own "self-displaying" cases instead of on shelves.

"They are showing you they are watching every penny," said Barry Berman, a Hofstra University business professor. The appeal is in the store's extremely low prices, he said.

Although Long Island's average wealth is higher than that of other regions, there are plenty of consumers here focused on finding savings and stretching their dollars, he said.

"This recession has taught people to be value-oriented," Berman said, adding that "whatever habits we have picked up continue when the economy rebounds."