Egg Harbor Township, N.J. ? The half-gallon ice cream container ” the sweet standard of grocery store freezers for decades ” is starting to shrink.

While manufacturers through the years reduced the package size of everything from candy bars to dish detergent, the traditional ice cream “brick” remained what it was ” the half gallon.

Now, pinched by rising ingredient costs and afraid to raise prices already above $5, at least two ice cream makers have started silently phasing out the half gallon with a 1.75-quart carton, a half-pint smaller.

Dreyer’s, which is based in Oakland, Calif., and sells the Dreyer’s and Edy’s brands, began introducing the smaller package in March. The new and old cartons can be found side-by-side during the transition, identical in shape and design ” and price. But one has two quarts, the other 1 3/4 quarts.

“We have over 100 flavors and many of them ” because people are preferring indulgent, chunky flavors ” cost more to produce than regular flavors like vanilla,” said Dreyer’s spokeswoman Dori Bailey. “We’d like to keep the cost at a price that’s more affordable for folks.”

Schwan’s, which sells primarily via a 7,000-vehicle fleet of home delivery trucks, made the switch in 2001.

Other major ice cream makers, including Good Humor-Breyer’s and Turkey Hill, are sticking with the half gallon for now. About three quarters of all ice cream is sold by the half gallon, according to the International Ice Cream Assn.

Some customers are noticing the change and don’t appreciate it.

Steve Luongo, dairy manager of Super Fresh supermarket in Northfield, N.J., holds the original half-gallon size ice cream container, at left, and the new 1.75-quart container. Edy's is among the brands changing to a smaller size container to effectively deal with increasing costs without increasing the price of their product.

“Everybody’s doing it,” complained Dorothy McGrath, 73, as she shopped the ice cream aisle at a Super Fresh supermarket in New Jersey. “The same thing happened with laundry detergent. The brands I used to buy in 100-ounce bottles are now 80 ounces, only the price is the same. They’re cheating the public, because they don’t advertise it.”

Manufacturers have heard such complaints, but sales haven’t been significantly affected, they say.

“We’ve had a few people say, ‘Wait a minute, there’s less ice cream in this package,”‘ said John Nabholz, spokesman for Schwan’s Sales Enterprises of Marshall, Minn. “But our research shows there’s effectively the same yield. It’s a more user-friendly package and it’s more efficient.”

The lidded containers eliminate the messy problem of half-gallon bricks that frequently were opened at both ends, and reduce “knuckle muck,” which is the ice cream that gets on your hands from the box flaps as you dig your spoon deep into the box, he said.