Sugar pineapples are a rough pine variety of pineapple often small to medium sweeter, less acidic but a little less juicy than a regular pineapple. Great for kids. Choose plump, heavy, aromatic pineapples for sweetness. Select firm fruit. Store in a cool place; once cut, store in air tight container in the fridge. Pineapples are available all year. Colour is not necessarily an indicator of sweetness.