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Nutri-Stahl 700w Juicer Machine - 2.8 inch Wide Mouth Feed Chute - Easy to Clean Dual Speed...
More product info From Nutri-Stahl

Amazon Reviews for  Nutri-Stahl 700w Juicer Machine - 2.8 inch Wide Mouth Feed Chute - Easy to Clean Dual Speed Masticating Juice Extractor for Fruits and Vegetables
Rating:
293 Ratings
252 Reviews
("Ratings" vs. "Reviews")
12% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
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Report Info:
Last Updated: Dec 28, 2022
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Note: While Amazon.com claims 293 Ratings, we counted 252 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

Pass Overall Grade
FAIL Deleted Reviews
FAIL Unverified Purchases
FAIL Phrase Repetition
WARN Rating Trend
WARN Suspicious Reviewers
WARN Reviewer Participation
PASS Word Count Comparison
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews

Most Trusted Reviews

This is my favorite juicer. The product is excellent and ... [Go to full review]
Apr 19, 2021      
100% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (2 deleted Reviews; avg. rating: 4.5)
  • Easy Grader (avg. rating: 4.6)


Least Trusted Reviews

I use this every day. I have juiced whole carrots, ... [Go to full review]
Mar 16, 2017      
0% TRUST
  • Unverified Purchaser
  • Contains repetitive phrases (show)
  • Overrepresented Participation (posted 7 Reviews)
  • Critical Reviewer (avg. rating: 4.1)


Analysis Details

Fail Deleted Reviews

We discovered a total of 27 deleted Reviews for this product, with an average rating of 4.9. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.

There are a few limitations to keep in mind regarding the Deleted Reviews test:
  1. We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
  2. We have no information on reviews that were never published in the first place.
  3. We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
Read more about our Deleted Reviews test.

4.9 average rating of deleted reviews

4.9


Show distribution of deleted reviews

Fail Unverified Purchases

31 of the 252 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.7 while the verified purchasers have rated this product an average of 4.2. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from unverified purchasers

from verified purchases


4.7
4.2


Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.

Fail Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.

Common Phrases in Reviews:
8 reviews
(4.8/5)
5 reviews
(4.6/5)
7 reviews
(4.7/5)
4 reviews
(5.0/5)
7 reviews
(4.7/5)
4 reviews
(4.5/5)
2 reviews
(4.5/5)
2 reviews
(4.5/5)
Show MoreShow Less
Common Phrases in Titles:
2 reviews
(5.0/5)


14 of the 252 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.9 while reviews without substantial repetitive phrases rated this product an average of 4.2. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.9
4.2


Read more about our Phrase Repetition test.

Warn Rating Trend

  • 8%
  • Created over 7 days

We counted 252 reviews for this product over the span of 1,837 days, an average of 0.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 2 or fewer reviews on any given day.

However, we see the following 7 days exceeding this threshold:In total, we found that 21 reviews were created on just 7 days. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.

from reviews created on high volume days

from reviews created on normal volume days


4.2
4.2


Read more about our Rating Trend test.

Warn Suspicious Reviewers

One-Hit Wonders


26 of the 252 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, the discrepancy in ratings between the One-Hit Wonders and reviewers who have posted more than one review isn't significant enough to rule out the possibility of it being due to random chance.

from one-hit wonders

from reviewers with more than one review


4.5
4.2


Take-Back Reviewers


89 of the 252 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from take-back reviewers

from reviewers without previously deleted reviews


4.2
4.2


Read more about our Suspicious Reviewers test.

Warn Reviewer Participation

  • 42%
  • From reviewers with an overrepresented participation

We see the following 1 participation group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 105 reviewers (or 42%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.1
4.3


Read more about our Reviewer Participation test.

Pass Word Count Comparison

  • 23%
  • Have an overrepresented word count

In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 58 reviews (or 23%) are within an overrepresented word count group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.4
4.2


Read more about our Word Count Comparison test.

Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:

2% also reviewed:
Fire by Amazon

1% also reviewed:
Amazon Store Card by Synchrony Bank

Does not include products
from the same brand


12 of the 252 reviewers have substantial overlapping product review history. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.7
4.2


Read more about our Overlapping Review History test.

Pass Reviewer Ease
The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4.2, while the average ease score for reviewers in this category is 4.2.

4.2 Product's Average Ease Score

4.2 Category's Average Ease Score


4.2
4.2


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters

We didn't detect a substantial amount of Brand Repeaters.

Pass Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.


2 of the 252 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from incentivized reviews

from non-incentivized reviews


5.0
4.2


Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.