In this season of deals, finding worthwhile reductions can be a challenge. To help you navigate the blizzard of festive sales, we have put together a list of bona fide deals. This Black Friday, everything below has 20 percent off at the PopSci Shop with coupon code BFSAVE20 (until 12/1).
In the kitchen
If you want to upgrade your cooking skills or just enjoy a better cup of morning joe, these deals should interest you.

Crafted from carbon-rich steel, these beautiful knives have a 12-degree cutting edge for precision slicing. They are graded impressively high on the Rockwell hardness scale, with blades that resist corrosion, and triple-riveted tangs. Normally $299.99, this set is now only $55.99.

This state-of-the-art brewer offers total control over temperature and water flow, meaning you can enjoy the perfect brew every time. It is also very easy to use — simply fill the water tank, add your ground beans, and set the timer. Worth $349.99, the Wilfa is now $67.99.

This versatile countertop device lets you air fry, roast, toast, grill, reheat, bake, warm, and even dehydrate food with eight preset functions. The Air Fryer has a built-in touchscreen for easy controls, and it has a temperature range of 90°F-400°F. Normally $149, it is now only $71.99.

The Bel Fer cookware collection blends timeless design with great features. Made from enameled cast iron, these pots and pans deliver heat evenly for better cooking. They retail for $299.99, but you can grab the set now for $79.99.
Around the House
There are plenty of ways to improve your home with technology. Here are some of the best deals on home gadgets.

It might look like a Star Wars droid, but this cute little device is actually an air purifier and humidifier. It runs for three hours on battery power, and it has a built-in night light and speaker. Originally $99.99, the purifier is now $20.

If you want to keep your smile gleaming, this flosser is a great investment. Instead of using floss, you can blast away plaque using high-pressure steam. It’s significantly more effective than traditional floss, and still compact enough for travel. Normally $19.99, the water flosser is now $12.80.

This powerful little heater offers instant warmth, with 600W of power and Thermal Flow technology. You simply plug it into any three-pronged outlet, and allow the Insta Heater to work its magic. Worth $36.99, the heater is now just $19.99.

When the summer finally returns, the EvaChill EV-500 will help you stay cool. This portable air conditioner can reduce the temperature in any room by 59ºF in just 10 minutes, while filtering dust and bacteria from the air. The standard price is $99, but it has now dropped to $60.
Upgraded Audio
For any audiophile, high-quality headphones and earbuds are always a good investment. Here are some examples, all 20 percent off for a limited time.

Utilizing the latest Bluetooth technology, the PaMu Slide headphones deliver excellent sound for 10 hours straight. They are water and sweat-resistant, and the supplied wireless charger offers an extra 50 hours of playtime. Worth $199, they are now just $79.99.

The Kharbon earbuds are pretty remarkable. Not only are they completely waterproof, but they provide 150 hours of battery life with ambient noise cancellation. They sound great, too, with dual microphones for Siri and Google. Worth $200, they are now only $63.20.

With an IP67 waterproof rating, the xFyro xS2 earphones are perfect for any adventure. They deliver rich sound, while CVC 6.0 noise cancellation helps to block out distractions. With the supplied charging case, you get 30 hours of playback. The earphones have dropped from $249.99 to just $63.99 this Black Friday.

Can’t afford Apple earbuds? AirSounds 2 provide the same experience at a much more affordable price. These buds feature a sleek, ergonomic design, with auto-pairing and high-quality sound via Bluetooth 5. Normally $109.99, they are now $31.99 with a charging case.

This anti-slip headband offers a neat alternative to headphones. Built-in speakers allow you to enjoy your favorite playlists via Bluetooth, while the acrylic headband mops up your sweat. It is currently down from $29 to just $17.40.
Powerful Devices
There is no need to spend a small fortune on tech this Black Friday. Here are a couple of sweet deals on computers.

With a huge glossy HD display and a powerful Intel processor, this Apple machine is great for multi-tasking and watching movies. This certified-refurbished model has been checked over by Apple-authorized technicians. Originally $1,199, you can get this iMac now for just $279.20.

If you are looking for something more portable, this refurbished Acer Chromebook should fit the bill. It has an 11.6-inch touchscreen and fast CPU performance, meaning you can browse and work at top speed. Worth $298.99, the R11 Chromebook is now only $111.99.
Tech Accessories
From power banks to DIY kits, these tech accessories make great gifts—for friends, family, or yourself.

This compact power bank has a capacity of 5,200mAh, with a USB output for your iOS devices and a wireless charging point for your Apple Watch. It also works with your AirPods, while intelligent safety protection ensures your devices won’t overheat. Normally $99.99, the power bank is now $31.99.

Another great upgrade for iOS users, this collection includes a rugged Lightning cable, a power bank, a wall charger, and a car charger. All the parts are approved by Apple, and they all have stylish canvas trim. This Black Friday, the collection has dropped from $49.99 to just $23.99.

Inspired by a Japanese lunchbox, this storage case lets you keep all your Apple accessories organized. The case doubles as a wireless charger, with a built-in 5,000 mAh battery for topping up your iPhone or Apple Watch. Originally $99.95, the BentoStack Charge is now only $63.99.

Want to improve your smartphone photography? RevolCam can help. This awesome kit includes wide-angle, macro, and fisheye lenses, along with a powerful LED light and a selfie mirror. Worth $59, RevolCam is now just $31.99 this Black Friday.

The CrowPi kit lets you explore code and electronics with a Raspberry Pi-powered laptop. The kit includes everything you need for building your DIY machine, including a touchscreen and a Raspberry Pi 3B+ board. Previously $349, the CrowPi kit is now $279.20 with the code.
Prices subject to change.