His site, which includes a distillery, shop, grounds and independently-run restaurant will all be open to the public from May 17 and as such the impact of a test rollout would be diluted, he said. "It's an extra precaution which I think we would make use of - if someone was going out to meetings or had been off for a week, for example. "But you can test one member of staff as many times a week as you like, if you've got customers queuing up at the door it doesn't give you as much as a safety net as it would an office where it's the same 100 people going in and out," he said.