Ingredient

Blueberry

The pale bloom on the skin is a natural wax the fruit produces, not a residue — rubbing it off shortens the berry's life, so wash them only at the last moment.

Sourcing
Wild or lowbush berries are much smaller and far more intensely flavoured than the cultivated highbush kind; frozen wild blueberries are a genuinely good buy.
Varieties
Highbush, Wild (lowbush), Rabbiteye
Quality cues
Firm, deep blue with an intact silvery bloom. Red tinges mean underripe; softness or juice staining the punnet means the opposite.
Substitutions
Blackcurrant, Blackberry, Raspberry
Storage
Refrigerate dry and unwashed in a vented punnet. Freeze in a single layer on a tray before bagging so they stay loose.
Shelf life
1-2 weeks refrigerated; 12 months frozen
Nutrition

Per 100 g

Calories
57 kcal
Protein
0.7 g
Fat
0.3 g
Carbs
14.5 g
Fibre
2.4 g
Sugars
10 g
Sodium
1 mg

From USDA FoodData Central (#171711). Raw, edible portion.