"We felt that it was also important that we listen to our customers and the community, and give them the choice and opportunity to make a good change," Keddell said.
"We hope our customers support this and that it can be implemented permanently, with other New Zealand restaurants giving it a go."
Camden Howitt, Sustainable Coastlines co-founder, said New Zealand's small size and place in the world gives it the opportunity to position itself as a world leader in sustainability solutions.
"New Zealand should take a leadership approach, both with individuals being innovative and coming up with new ideas and businesses operating here being used as testing grounds for new ideas that can be refined further to solve bigger environmental issues," Howitt said.
"We are a smaller ship so we can turn more easily which gives us more opportunity to lead trials and roll out good sustainability solutions around the world."
Wagamama has two restaurants in Auckland and one in Wellington.
The company, which was established in London in 1992, also has franchises in 18 different countries across Europe, the Middle-East and New Zealand.