NEW YORK ( TheStreet) -- H.J. Heinz ( HNZ) created a new "Dip and Squeeze" ketchup packet that will be available later this year at Wendy's ( WEN - Get Report).

The new ketchup packet, a replacement for the traditional rectangular-shaped packet, can be squeezed out through one end or the lid can be peeled back for dipping.

McDonald's ( MCD - Get Report) and Burger King are testing the packets but declined to comment on the results for The Wall Street Journal.

Heinz spent three years developing the new packet, according to the newspaper.

Smaller outlets like Chick-fil-A and Dairy Queen began carrying the packets earlier this year.

Wendy's on Monday unveiled a new hamburger -- Dave's Hot 'N Juicy, which is named after Wendy's late founder Dave Thomas.

Among changes to the burger are extra cheese, a thicker beef patty and a buttered bun. It will be served in restaurants starting Monday, according to The Associated Press.

Wendy's hadn't changed its burger since the chain started in 1969,

"Our food was already good," said Denny Lynch, a Wendy's spokesman. "We wanted it to be better. Isn't that what long-term brands do? They reinvent themselves."

-- Written by Joseph Woelfel

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