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Last updated May 26, 2026

COSORI Pro II 5.8-Quart Air Fryer
COSORI Pro II 5.8-Quart Air Fryer 1
COSORI Pro II 5.8-Quart Air Fryer 2
Trending - 90k+ Reviews
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COSORI

COSORI Pro II 5.8-Quart Air Fryer

Last updated: May 26, 2026

4.7/5
(90567 reviews)

The COSORI Pro II 5.8-Quart Air Fryer is the best-selling air fryer on Amazon for a reason. With over 90,000 reviews and a 4.7-star rating, it delivers perfectly crispy keto meals with zero compromise. The 5.8-quart square basket fits a whole chicken or enough wings for a crowd. 11 cooking presets make it effortless to air fry, roast, broil, or dehydrate keto-friendly foods.

Key Features

  • 5.8-quart square basket fits a whole chicken
  • 11 one-touch cooking presets
  • Shake reminder for even cooking
  • Square design provides 30% more usable space
  • 170°F to 400°F temperature range
$100
Price range: $90-120
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4.7/5
"Click to read our hands-on testing notes for this product."
Verified Purchase 90,567 reviews

Pros and Cons

Pros

  • Best-selling air fryer on Amazon (90K+ reviews)
  • Large capacity for batch keto meal prep
  • 11 presets eliminate guesswork
  • Shake reminder prevents burning

Cons

  • Large footprint on countertops
  • Digital controls can feel over-engineered

Detailed Specifications

Specifications

capacity
5.8 Quarts
temperature_range
170°F to 400°F
wattage
1700W
presets
11
dimensions
12.2 x 12.6 x 13.5 inches

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Our Expert Review

Read Our Hands-On Review

We spent several weeks cooking with the COSORI COSORI Pro II 5.8-Quart Air Fryer in our test kitchen, putting it through the kinds of high-fat, low-carb recipes our readers actually make. The COSORI Pro II 5. Here's how it held up across build quality, real-world performance, and overall value for air fryers buyers on a keto diet.

Build Quality & Design

The COSORI COSORI Pro II 5.8-Quart Air Fryer is built with materials suited for daily keto cooking, measuring 12.2 x 12.6 x 13.5 inches. What stands out immediately is that best-selling air fryer on amazon (90k+ reviews). On the flip side, large footprint on countertops is something to consider if counter or storage space is tight. For keto cooks who sear, braise, and batch-cook regularly, the overall construction feels like it will hold up to frequent use with oils, fats, and high temperatures.

Performance Testing

In daily keto cooking tests, the COSORI Pro II 5.8-Quart Air Fryer impressed us most with best-selling air fryer on amazon (90k+ reviews) and large capacity for batch keto meal prep. The 5.8-quart square basket fits a whole chicken and 11 one-touch cooking presets both proved genuinely useful — not marketing checkboxes. User sentiment backs up our findings: 90,567 Amazon reviewers give it 4.7/5 stars. The main performance drawback we noticed: digital controls can feel over-engineered. For typical keto tasks — searing fatty cuts of meat, rendering bacon fat, slow-cooking bone broth, or batch-prepping proteins for the week — it delivered consistent, repeatable results.

Value for Money

At $100, the COSORI Pro II 5.8-Quart Air Fryer is competitively priced. It typically sells in the $90-120 range, so check current pricing. What pushes the value proposition forward is that 11 presets eliminate guesswork. For most keto home cooks, the combination of COSORI reliability and the feature set makes this a purchase you won't regret.

Final Verdict

The COSORI COSORI Pro II 5.8-Quart Air Fryer earns our top recommendation. With a 4.7/5 rating and strengths like best-selling air fryer on amazon (90k+ reviews), it's one of the best air fryers we've tested for keto cooking. The large footprint on countertops is a real but manageable trade-off. If you're serious about keto meal prep and want equipment that won't let you down, this is the one to buy.

SJ

Sarah Johnson

Founder & Head of Testing

Certified nutritionist with 8+ years testing kitchen products for keto cooking

How Does It Compare?

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Frequently Asked Questions About the COSORI Pro II 5.8-Quart Air Fryer

Is the COSORI Pro II 5.8-Quart Air Fryer good for keto meal prep?

Absolutely. The COSORI Pro II 5.8-Quart Air Fryer excels at keto meal preparation for several reasons. First, it's designed for the high-fat cooking methods common in ketogenic diets, whether you're rendering bacon fat, searing steaks, or preparing butter-based sauces. The COSORI build quality ensures consistent heat distribution, which is critical when cooking proteins to precise temperatures.

For keto dieters doing weekly meal prep, this product handles batch cooking efficiently. Features like 5.8-quart square basket fits a whole chicken make it particularly valuable for preparing multiple portions of keto staples like cauliflower mash, zucchini noodles, or fat bombs.

What makes the COSORI Pro II 5.8-Quart Air Fryer better than competitors for keto cooking?

The COSORI Pro II 5.8-Quart Air Fryer stands out in COSORI's lineup and among competitors for its balance of performance, durability, and value. With a 4.7/5 rating from 90,567 verified buyers, it consistently ranks among the top choices in its category.

Key differentiators include: Best-selling air fryer on Amazon (90K+ reviews), Large capacity for batch keto meal prep. Unlike cheaper alternatives that may have hot spots or uneven cooking, the COSORI Pro II 5.8-Quart Air Fryer delivers consistent results whether you're making chaffle batter, bulletproof coffee ingredients, or high-heat seared meats.

How do I clean and maintain the COSORI Pro II 5.8-Quart Air Fryer?

Proper maintenance extends the life of your COSORI Pro II 5.8-Quart Air Fryer significantly. For regular cleaning after keto cooking (which often involves oils and fats), allow the product to cool slightly, then wipe with a paper towel to remove excess grease. Most residue from butter, coconut oil, or bacon fat wipes away easily while still warm.

For deeper cleaning, use warm water with mild dish soap. Hand washing is recommended to preserve the finish and extend the product lifespan. Avoid abrasive scrubbers that could damage the surface. Store in a dry location to prevent any moisture-related issues.

Is the COSORI Pro II 5.8-Quart Air Fryer worth the $100?

The COSORI Pro II 5.8-Quart Air Fryer is priced competitively and offers excellent value for daily keto cooking. Consider how often you'll use it: if you're following a strict ketogenic diet, you'll likely use this product multiple times per week.

The COSORI quality means you won't need to replace it frequently, unlike budget alternatives that may wear out within a year. The main tradeoffs to consider: large footprint on countertops. For most keto home cooks, the durability and performance justify the price point.

What keto recipes can I make with the COSORI Pro II 5.8-Quart Air Fryer?

The COSORI Pro II 5.8-Quart Air Fryer is versatile enough for most keto kitchen tasks. Popular uses include:

  • Preparing high-fat proteins (bacon, ribeye steaks, salmon with crispy skin)
  • Making keto-friendly sides like cauliflower rice or zucchini noodles
  • Rendering animal fats for cooking (tallow, bacon grease, duck fat)
  • Creating keto desserts and fat bombs
  • Whipping up bulletproof coffee or keto smoothies

The 11 one-touch cooking presets feature makes it especially useful for these applications.

What's the warranty and return policy for the COSORI Pro II 5.8-Quart Air Fryer?

Warranty terms vary by retailer, but COSORI typically offers standard manufacturer warranty coverage. When purchasing through Amazon, you're also protected by their A-to-Z Guarantee which covers defective products and shipping issues.

We recommend keeping your receipt and registering the product with COSORI if they offer warranty registration. Most authorized retailers offer 30-day return windows for unused products. For the best customer service experience, purchase from reputable sellers with verified reviews.

⭐ 4.7/5 from 90,567 verified buyers

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The COSORI Pro II 5.8-Quart Air Fryer is trusted by over 90k keto dieters. Join them and see why it's a bestseller.

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