Face masks will also be advised for the cooking and serving of Christmas dinner.
Government advice this evening will say people shouldn't hug or shake hands with people they have over for Christmas.
People will also be advised to wear a facemask while cooking AND serving the dinner.
The number of people allowed in the kitchen should be limited, while advice will recommend keeping fresh air flowing through the house by keeping a window open.
Anyone intending to host people at Christmas will be told to limit contacts as much as possible from today.
Cabinet meeting.
Meanwhile, a cabinet meeting to decide how Ireland exits Level Five restrictions is now under way.
Ministers are meeting in government buildings to confirm a three-stage easing of restrictions.
Retail, hairdressers, barbers, gyms, cinemas, theatres and other shops will be allowed to open next week.
The following week restaurants and pubs that serve food will be allowed to open.
While travel restrictions and the ban on household gatherings will be lifted later in the month - likely from December 18th.
