Sang An
Parmigiano-Reggiano is good for adding complexity to dishes.

Dear Martha: In shopping around for new windows, I was surprised by all the options. Will any of them help prevent my furniture from fading?

A: There's more to today's windows than meets the eye. For starters, most units consist of multiple panes of glass filled with an invisible insulating gas. Manufacturers also offer windows with low-emissivity (or low-E) coatings, which help block out solar heat. Low-E glass was developed with energy efficiency in mind, although it also offers some fade protection.

There's a relatively new product on the market called ClimaGuard SPF that is specifically designed to prevent fading. When applied to glass, the organic coating is said to absorb 99.9 percent of the sun's ultraviolet rays. ClimaGuard SPF is always paired with a low-E coating, resulting in windows that should minimize fading and reduce energy bills.

If you are not in the market for new windows, you still have options. You can apply ultraviolet-resistant plastic film to existing window panes. You can also hang solar shades, which let sunlight through but block ultraviolet rays. Depending on your budget, there are even motorized models that can be programmed to lower and raise with the sun's intensity.

Remember that other environmental factors, including temperature, wear and humidity, also contribute to fading, so you will need to address those, too.

Dear Martha: Is there any way to get the musty smell out of old cabinets?

A: I have had a lot of success combating musty odors with plain white vinegar. Try placing a glass or ceramic dish filled with the liquid in your cabinet and leaving it there overnight, or until the smell vanishes.

A more aggressive approach would be to wipe the insides of the cabinets with a solution of one part vinegar and one part hot water. Once you've eliminated the musty smell, you can help prevent its return by keeping a sachet of dried lavender — or any other flower with an aroma you find pleasing — inside the cabinets.

Dear Martha: How does Parmigiano-Reggiano differ from Pecorino Romano?

A: The primary difference between these Italian hard cheeses is that Parmigiano-Reggiano uses cow's milk, while Pecorino Romano is made from sheep's milk. Both cheeses carry a Denomination of Protected Origin certification, which means they're produced in a specific region in Italy using techniques regulated by that nation's government.

It should be noted that other countries produce versions of Parmesan and Romano using similar techniques, but they cannot be labeled Parmigiano-Reggiano or Pecorino Romano. Cheese connoisseurs prefer the Italian originals, much the way Champagne buffs choose real bubbly over sparkling wine.

Pecorino Romano cheese is aged for less time than Parmigiano-Reggiano. The former is sometimes referred to as "the people's cheese," because, on average, it costs several dollars less per pound.

Both cheeses have a lot of value in the kitchen, however. With its crystalline texture and rich, nutty flavor, Parmigiano-Reggiano is the more versatile of the two. It can stand alone on a cheese plate, and it's best for adding complexity to dishes, whether a risotto or an arugula salad. Salty, pungent Pecorino is too dry and crumbly to eat on its own, but it is delicious as a finishing element in cooking, as the final layer on a brick-oven pizza, for example, or grated over a bowl of pasta.

Whichever cheese you choose, always purchase it by the block, and freshly grate or shave it as needed.

Dear Martha: My home is being invaded by fruit flies. How can I get rid of them?

A: First things first: Eliminate the flies' breeding ground by discarding any overripe fruits or vegetables. Do a thorough job and the pests should die off in a week or so.

To hasten their departure, Mike Potter, an entomologist at the University of Kentucky, recommends this simple trapping device: Fold a sheet of paper into a funnel, and insert its point into a narrow-neck jar that contains a banana slice or a drop of cider vinegar. Once lured into the jar, the fruit flies won't find their way out.

For a drawing of the trap, go to and type "fruit flies" into the search box.

Questions should be addressed to Ask Martha, care of Letters Department, Martha Stewart Living, 11 W. 42nd Street, New York, N.Y. 10036. Questions may also be sent by electronic mail Please include your name, address and daytime telephone number. Questions of general interest will be answered in this column; Martha Stewart regrets that unpublished letters cannot be answered individually. For more information on the topics covered in the Ask Martha column, visit