Sacramento's sudden proliferation of places for people to sample wine isn't limited to small shops and cafes popping up here and there. Raley's and Bel Air markets also are tapping into the country's growing thirst for wines.

A year ago, Raley's and Bel Air started to add wine-tasting programs to several of its supermarkets. This week, the total grows to seven with the Raley's branches along Douglas Boulevard in Granite Bay and along Blue Ravine Road in Folsom joining the lineup.

Each week, a different winery is invited to pour samples of its releases for a cost of $3 per person, which is refunded for a $3-off coupon toward the purchase of a bottle of wine. Usually, two whites and two reds are poured.

The tastings are 5:30 p.m. to 7:30 p.m., Thursdays at the Bel Air along East Bidwell in Folsom, the Raley's along Freeman Lane in Grass Valley and the Bel Air along Arena Boulevard in Natomas, Fridays at the Raley's along Park Drive in El Dorado Hills, the Raley's along Blue Ravine Road in Folsom, the Raley's along Douglas Boulevard in Granite Bay, and the Raley's along Lake Tahoe Boulevard in South Lake Tahoe.

This week, with Sunday's Super Bowl parties in mind, the seven stores also will be pouring tastes of several microbrew beers for an additional $2 per person.