Kurt Gross knows when a pint of Irish dry stout has been well poured and he dropped in to Whanganui's Grand Hotel for a pint of Guinness.
"I slipped in as a secret shopper to do a taste test and I was very impressed," he said.
Mr Gross is a beer ambassador for Lion Beer in New Zealand and he wanted to make sure the Grand Hotel is worthy of a platinum plaque again this year.
"We wanted to make sure we were up to standard again," said manager Werner Lamprecht.
"We are doing a countdown to St Patrick's Day and we want people to know that we are still platinum standard."