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Getty Images If you're especially worried about lead, one easy way to mitigate that risk is to simply run the tap water a few minutes before using it. The most dangerous amounts of lead accumulate when the water has been sitting in your home's pipes overnight, so if you flush that immediate water out, you'll be in better shape.

Brita's smart pitcher is $20 more than an identical Brita pitcher with no smarts to speak of, so the question here is whether or not that Amazon Dash integration is worth the extra 20 bucks. In theory, it's a useful bit of automation -- especially if you already buy replacement filters on the regular. In practice, it isn't all that precise, and more than anything seems designed to get people to buy new filters more often than they would out of habit alone. It certainly isn't something that anyone needs, but it might make a decent gift for a friend who's picky about filtered water.

$90 at Walmart How we test espresso machines
My evaluation process for espresso machines is similar to how I test standard drip coffee makers. First, I hand wash and dry all removable parts and accessories. For most espresso products that includes the portafilter basket, metal portafilter inserts, water tank and so on. Next I run one brewing cycle with just hot water to flush away any residual material from manufacturing.

Tyler Lizenby/CNET 2. Flush out the filter
Tucked inside your robot's dustbin is an air filter. It's designed to trap fine dust particles inside the bin as air flows through the vacuum. Over time these filters will become clogged with lint, hair and other physical debris. It's a good idea to inspect the filter each time you empty the bin. 

After you decide what material you want your reusable water bottle to be made of, consider the lid type. Do you want a straw lid, a flip-top spout lid (like a travel mug) or a screw top? Maybe you need a lid that can attach to a backpack with a carabiner or a lid that won't unscrew in your work bag.

Tyler Lizenby/CNET Dash Rapid Cold Brew System
The $129 Dash Rapid is part of a new wave of fast cold-brew coffee makers. It uses an electric pump to create internal vacuum pressure. This pressure causes water to circulate between a glass carafe, through coffee grounds within a filter chamber and back. The machine runs the loop continuously during the brewing process. Afterwards, in as little as 5 minutes, brewed coffee returns to the Dash's carafe. As cold brew goes, what the Dash makes has a bit of a weak taste. That said, it's drinkable and fits the bill if speed is your priority. 

A sensor in the bottle tracks every sip you take and records it in your activity app when synced. The Hidrate Spark bottle works with iOS and most Android phones. The lid and bottle are dishwasher safe, and the sensor can be hand washed. The bottle uses replaceable batteries that you can purchase directly from the Hidrate website.  

id="cnetReview" section="rvwBody"> For $45, the Wi-Fi-equipped Brita Infinity pitcher promises to keep track of how much water is passing through the filter. Once the filter is about spent, it'll go ahead and automatically order a replacement from Amazon that'll arrive at your doorstep just when you need it.

To pull shots, I start with the suggested method outlined in a given machine's product manual. Usually that covers the amount of coffee grounds expected per shot, along with any guidelines regarding coarseness level. Likewise, I follow tamping instructions (light, medium or hard tamp) if the manual provides them.

Espro Press P5
One tried-and-true cold brew method for making cold brew is to use a French press, with the coffee steeping overnight. One drawback to these simple contraptions though is they tend to have poor filters. The result is often a gritty drink -- solid coffee grounds suspended in a liquid solution, especially if you don't have a coarse grind for your beans. The $60 Espro Press P5 tackles the gritty coffee grounds problem by using two stainless steel mesh filter baskets. The extra level of filtration helps the P5 create cold brew (or hot) that's wonderfully smooth and flavorful. However, the beverage the Espro brews isn't as concentrated as what other products make. Another detractor is the Espro's price. It costs twice as much as an ordinary French press. 

$36 at Amazon Lifefactory Glass Water Bottle
Our glass water bottle pick
Lifefactory Glass is non-toxic, doesn't seep chemicals, and doesn't degrade over time, making it a great alternative to plastic. The body of this Lifefactory bottle is made entirely of glass, while the protective outer layer and flip-top seal are silicone. This wide-mouth bottle has a silicone sleeve that makes this bottle extra grippy (no broken glass!), and it's dishwasher-safe.

Gourmia Cold Brew Coffee Maker
Need your tall glass of cold brew fast? Then the $109 Gourmia Cold Brew Coffee Maker is right up your alley. The vacuum pump-powered electric appliance can brew your beverage in 4 minutes flat. That's a ridiculously short time to create and pour cold brew in, but as you might expect, the taste of those 4-minute brews is weak. Fortunately, maxing the brew time out to 15 minutes produces a much stronger drink. And that's still not long to wait compared with the 12 hours of steeping that cold brewing usually takes.

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