Former Sheffield Steeler and Scimitar Rob Farmer scored for Great Britain, but the national side lost their third straight agame at the World Championship as they went down 5-1 to top seeds Italy.
Italy took the lead after only 61 seconds but GB were quick to bounce back.
Farmer, winning his 14th cap, scored his first senior goal with a blast from the right circle (7:23).
GB created chances in the first period but were on the back foot in the second session onwards as Italy piled on the pressure.
At 5-1 down, GB made a switch in nets for the last five minutes as Sheffielder Ben Bowns replacing Stephen Murphy.
Head coach, Tony Hand, said: “I am frustrated after this one. I am proud of the way they battled and they gave their all once again. But we made mistakes and that is disappointing. We looked tired and when you get tired you make mistakes. I will talk to the boys and we must find a way to stop this happening. But we won’t get down. We will lift ourselves now. We have two massive games to come. We have been here before, so we know how to handle it.”
GB return to action tomorrow against Japan.