Mayonnaise that does not get stuck in its container is being developed by a Norwegian company. Orkla is the first food manufacturer to announce a deal with US company Liquiglide to use its non-stick coating in product packaging. Getting the last bit of sauce out of a bottle is a common annoyance for shoppers. Many have shared their frustration on social media. One expert told the BBC some consumers might have safety concerns. "I'm sure consumers do, from time to time, look at the wasted dregs stuck in a bottle of mayo and wonder why suppliers haven't been able to solve the issue," said Vince Bamford, buying and supplying editor for The Grocer. "Embracing this technology would offer a brand a unique selling point, although some degree of education would be required to reassure shoppers that this was a natural product."