Google tells me 1899 joules is .454 kilogram calories (dietary/large/capital C Calories) -- which would be a pound-calorie or pint-calorie, not sure why Google thought that was a useful unit.

1 kilocalorie = 4184 joules

now if you want to base your scale on how many bananas you can heat by 1 degree using the caloric energy of one banana...

@RussellBorogove But the specific heat of a substance changes a lot with temperature.