What percentage of reviews are fake for this product?

28.00% of the analyzed reviews appear to be fake or inauthentic.

What is the authenticity grade for this product?

The product receives a grade of C based on review authenticity analysis.

How many reviews were analyzed?

15 reviews were analyzed for authenticity patterns.

What is the adjusted rating after removing fake reviews?

After removing suspicious reviews, the adjusted rating is 4.20 out of 5 stars.

How does this analysis help consumers?

This analysis helps consumers identify products with manipulated reviews, enabling more informed purchasing decisions based on genuine customer feedback.

SHAN ZU Knife Set 16 pcs, Japanese Kitchen Knife with Block High Carbon Stainless Steel Ultra Sharp Knife for Kitchen, Professional Chef Knife Set with Sharpener

Name: SHAN ZU Knife Set 16 pcs, Japanese Kitchen Knife with Block High Carbon Stainless Steel Ultra Sharp Knife for Kitchen, Professional Chef Knife Set with Sharpener
Brand: Amazon
SKU: B0C1BFMFLZ
Availability: InStock
Rating: 4.2 (15 reviews)

ASIN: B0C1BFMFLZ

Analysis Date: Nov 8, 2025 (re-analyzed Nov 8, 2025)

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Review Analysis Results

Authenticity Grade

28.00%

Fake Reviews

4.93

Original Rating

4.20

Adjusted Rating

Analysis Summary

This knife set shows moderate signs of review manipulation with approximately 28% likely fake reviews. The product has overwhelmingly positive ratings (15 of 16 reviews are 5-star, 1 is 4-star) with limited critical feedback. Several reviews exhibit formulaic language, repetitive praise for 'sharpness' and 'beauty' with minimal substantive detail about actual use. However, many reviews do contain specific usage examples and reasonable variation in writing style, suggesting a mix of genuine and potentially incentivized reviews. The presence of multiple non-English reviews (French, Italian) adds authenticity, and several reviews include practical details about specific knife types and cooking experiences that appear genuine.

Review Statistics

833

Total Reviews on Amazon

-0.73

Rating Difference

Price Analysis

Price analysis pending

Price insights will be available shortly.

Understanding This Analysis

What does Grade C mean?

This product has moderate review authenticity concerns. A notable portion of reviews show suspicious patterns. Consider reading reviews carefully before purchasing.

Adjusted Rating Explained

The adjusted rating (4.20 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (4.93 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.