Kirkland Signature Organic Blueberries $9 for 3 pounds Frozen fruit is picked at the peak of ripeness and frozen immediately, so it's often sweeter than the fresh version you can buy in the store.

Townsend Farms is the confirmed source behind Costco's beloved four-pound frozen berry blend mixture of blackberries, raspberries, and blueberries.

Costco's Kirkland organic blueberries are known for being freshly frozen, USDA-certified organic, and a great deal, as a three-pound bag will only set you back about $9.

Costco's Kirkland organic blueberries are known for being freshly frozen, USDA-certified organic, and a great deal, as a three-pound bag will only set you back about $9.