There are countless options on the market for aerating wine. Some cost just a few dollars. Other, more elaborate options simulate the function of a decanter and exceed $100. But the cost of an aerator will not put off a wine connoisseur who spends $100 for a bottle of aged red wine, as the aeration maximizes the desired flavors.

With a dizzying array to select from, there are some key features to look for in your own wine aerator. We examine these below.

The function of mixing air with wine can be accomplished in a number of ways. And with aerators, you get what you pay for.

• Cheap wine aerators have a hole which allows the air to come into contact with the wine, but there is little, if any, mixing.
• As you go up in price, the better models have what is known as a “multi-stage design” which actually blends the wine with air. In some aerators, you can actually hear a gurgling sound as this occurs. In addition to a thorough mixing, better aerators also remove more sediment than their less-expensive brethren.

When aerating an expensive bottle of wine, the last thing you want is to spill your precious grape all over the counter. You want a wine aerator that’s easy to use and minimizes waste.

• Better wine aerators fit inside the neck of the bottle to ensure clean pouring.
• Selecting an aerator with a holder or cap ensures that not a single drop is wasted.

By the same token, don’t be fooled by those cheapies that look more like stoppers or spouts you would put in an olive oil bottle; they are poor at aeration.

Decanting is the process by which wine is poured into a vessel to allow it to breathe and open its complex flavor while creating a separation of wine from sediment.

Wine can be decanted with or without aeration, but according to Wine Spectator, it is common to aerate wine after it is decanted if the initial taste is unsatisfactory.

Heavy wine often requires aeration as it is decanted, and then it must sit open for a few hours to maximize the perfect balance.

A number of aerators are sold with decanters.

To create differentiation among the choices, aerator manufacturers have gone to great lengths to add interesting features. Some of the best choices have built-in diffusers and handsome carrying cases that would add to the décor of any kitchen or home bar.

As mentioned above, you could pay less than $10 or more than $100 for a wine aerator. Here’s a look at what to expect in each price bracket.

It’s surprising what you can get for this low price. In the middle of this range, around the $5.99 mark, you can pick up an aerator that does a decent job of gently mixing air into wine. In this segment, most options only do glass-by-glass aeration.

This segment is far and away the most crowded with products. All offer a decent amount of aeration with designs that range from elegant to novelty. You'll find wonderful products with sophisticated looks, rubber stoppers, and genuine stainless steel in their makeup.

The best of breed in this price band often have larger pouring spouts that allow the wine to travel more quickly through the spout during the aeration process. This rapid flow is called the Bernoulli Effect, and it allows sediment to dissipate more quickly and release trapped gases in the wine.

As the price goes up from here, you can purchase automated openers and aerator sets that bring the wine opening process into an entertainment category for the most sophisticated wine drinkers.

Q. How do I take care of my wine aerator?
A. Generally, holding it under warm water for 30 seconds after use will clean the unit. In some cases, sediment will remain. Use a wire aerator brush to finish off the job.

Q. What material are wine aerators made of?
A. The most common materials are acrylic, stainless steel, plastic, and rubber. Stainless steel often lasts longer and is easier to clean up than some other materials, but it also tends to cost more.

Q. Are there alternative ways to aerate wine?
A. Former Microsoft exec and food science buff Nathan Myhrvold says a foolproof way to aerate wine (and delight guests) is to pour your wine in a bowl, then get out your best immersion blender and whip it at high speed for 30 seconds. If no immersion blender is on hand, a powerful hand blender will do.

BestReviews contributor Jess Cording is a professional nutritionist and wine expert, and she added her opinions and expertise to this review. To learn more about Jess and her work, click here.