Premier Gladys Berejiklian announced on Sunday that cafes and restaurants could reopen from Friday for up to 10 patrons, with social distancing to be maintained.

"Unfortunately it's not viable for us," Grain Store owner Corey Crooks said.

"It's hard to swallow when you look at Westfield and see 5000 people walking through the aisles. We seem to be running under two sets of rules, when comparing other industries."

In cafe and restaurant terms, the first step of easing restrictions is akin to a starter, while looking forward to the main course and dessert.

Mr Crooks will reassess the situation when up to 20 patrons are allowed in cafes and restaurants.

Under the federal government's three-step framework for easing restrictions, up to 10 patrons in cafes and restaurants is step one.

Up to 20 patrons will be allowed in step two, while step three will allow up to 100 patrons.

Mr Crooks may be able to separate the venue and have a pre-booked space for 20 people at a time under step two, but he's looking forward to step three.

"That's the level where we want to be able to give people an experience. Hospitality is all about the atmosphere you create," he said.

Prime Minister Scott Morrison's "road map" enables step three to be reached by July, but he's given the premiers the power to decide when to lift restrictions in each state.

"I'll take the positive that we know where the potential finish line is," Mr Crooks said.

"When all this started, we were looking at September or October."

Luke Tilse, owner of Happy Wombat cafe, bar and restaurant in Hunter Street, said "I'll definitely be opening for 10 people".

Mr Tilse will take bookings for up to 10 people for about 90 minutes at a time. A changeover period will allow for cleaning in between groups.

He's excited to open, but annoyed at the lack of detail from the government.

"Because it's such a serious issue, we need no grey areas. It's frustrating there's no dot-point release to the industry - like an info pack."

Ms Berejiklian said social distancing must be maintained in cafes and restaurants and an average density of four square metres per person.

She acknowledged that the limit of 10 patrons won't be enough for many restaurants and cafes to reopen.

"For some very small outlets, it might only mean two or three people [patrons] inside ... because you always have to maintain social distancing," she said.