All the food waste collected in Lincolnshire is taken to an anaerobic digestion facility, where it is turned into energy and fertiliser.
The county council said, while the first week had been positive, there may be some “initial teething issues” as crews and collection routes settle in.
Danny Brookes, chair of Lincolnshire Waste Partnership, said: “We’ve been really encouraged by the positive start to food waste collections across Lincoln, North Kesteven and West Lindsey.
“It’s great to see so many residents already making use of their caddies and getting behind the new service.”