A Dean Foods sweepstakes offers a grand prize of $25,000, and the winner can select an accredited school or registered 501(c)(3) charity to receive $5,000, delivered as a Visa gift card.

The "Dean Foods Start Right-End Right" sweepstakes, which began on Dec. 29, 2011, runs until Feb. 26. It was announced in free-standing inserts this week.

To participate online, entrants enter a 12-character alphanumeric code found on a sticker affixed to the outside of the package of Dean Foods white milk or TruMoo chocolate milk gallons or half gallons. Entrants receive a bonus entry by entering one code from a white milk SKU and one code from a chocolate milk SKU. The promotional websites are www.trumoo.com/startright or www.startrightendright.com.

The grand prize winner will be selected at random on or about Feb.29.