Large King Prawns
by Sainsbury's
Open Food Facts label for barcode 01830750 · Sainsbury's · Seafood. Screening numbers and flags live in the verdict band below. This hero only situates the source record.
The verdict
Large King Prawns by Sainsbury's scores 100/100 in PlainFoodSafe's ingredient screening. We compared its 4 labeled ingredients with FDA SAFFA regulatory records and CSPI Chemical Cuisine ratings; 0 ingredients are flagged for caution. Its short parsed label begins King Prawn, Penaeus Vannamei, Crustacean, so the useful next step is to inspect those few components directly rather than infer from the composite score. This is not a recall, allergy, medical, or dietary-safety determination.
- 100/100
- Safe safety score
- 0
- None flagged · of 4 analyzed
- Group 3
- Processed foods
- D
- Nutri-Score nutrition grade
Computed directly from OpenFoodFacts ingredient data cross-referenced with FDA SAFFA and CSPI Chemical Cuisine ratings. See our methodology for the scoring formula.
Composite profile score
One verdict from three independent sources
70/100
Grade B
Ingredient Safety
100/100
FDA/CSPI flagged-ingredient screening
Processing Level
NOVA 3
Processed foods
Nutrition Grade
D
Nutri-Score front-of-pack nutrition grade
Weighted 50% ingredient safety / 25% processing level / 25% nutrition grade. A dimension with no data for this product (common: source coverage is partial) is dropped and its weight redistributes across the remaining dimensions, so missing data never silently lowers the score. See the full benchmark table.
01830750 · Open Food Facts · July 2026
Large King Prawns label screening desk
1 of 4 parsed ingredients carry FDA SAFFA or CSPI coverage (lead: Salt). Source sheet 01830750 · Open Food Facts · July 2026. The screening score and flag counts are in the verdict band above. This desk is the provenance stamp, not a second scorecard. Methodology · Read with nearest score peer: Shirley Temple Prebiotic Soda · Nearest score peer is Shirley Temple Prebiotic Soda at the same screening score.
Screening model notes
How Nutri-Score, NOVA, and list length read this record
Within the four-tier shelf-label framework this site publishes, the composite for this product falls in the highest band. That band is defined by a threshold on the derived score alone: it is where labels land once components carrying caution-or-worse registry ratings contribute little or nothing to the deduction. The band is a summary of what the screened registries return for the components that were parsed, so it inherits their coverage gaps — a component absent from both registries neither raises nor lowers the figure. The threshold and the weighting behind it are set out on the methodology page.
This label falls in the fourth Nutri-Score band. The model arrives there when its penalty terms — energy density, sugars, saturated fat, sodium — carry more weight in the calculation than the fibre, protein and produce content it credits. The band covers a wide span of the points scale, so position within it is not visible from the letter alone. The grade reflects the declared nutrition panel and is unrelated to the additive ratings listed below, which come from different bodies applying different criteria.
The declared list parsed into a small number of components. On a short list the registry screen covers close to everything the packaging declares, and any single matched component accounts for a correspondingly large share of the composite. Short lists also leave less room for parsing error, since there are fewer separators and qualifiers for the extraction to resolve.
Cross-brand screening score neighbourhood
How It Compares to Its Category
Among the 5,679 products we've scored in the Seafood category, the average safety score is 99.2/100. Large King Prawns scores 0.8 points above that category average (100/100 vs. 99.2/100), so it is roughly typical for shoppers screening within that category specifically, rather than against the product catalog as a whole.
Ingredient-list length vs other Seafood products
Large King Prawns lists 4 ingredients on its label
4 30th percentile a longer ingredient list than 30% of the 4,524 products we track
Each bar is a band; taller bars hold more products. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Distribution as text
- 0–2
- 39 products (1%)
- 2–4
- 1,326 products (29%)
- 4–6
- 1,158 products (26%)
- 6–8
- 327 products (7%)
- 8–10
- 167 products (4%)
- 10–12
- 156 products (3%)
- 12–14
- 185 products (4%)
- 14–16
- 129 products (3%)
- 16–18
- 152 products (3%)
- 18–20
- 124 products (3%)
- 20–22
- 112 products (2%)
- 22–24
- 74 products (2%)
- 24–26
- 77 products (2%)
- 26–28
- 75 products (2%)
- 28–30
- 53 products (1%)
- 30–32
- 56 products (1%)
- 32–34
- 52 products (1%)
- 34–36
- 37 products (1%)
- 36–38
- 25 products (1%)
- 38–40
- 20 products (0%)
- 40 and above
- 180 products (4%)
Source Open Food Facts, product label ingredient lists · July 2026
Ingredient-list length is a descriptive property of the label, not a safety rating. A longer list is not automatically worse and a shorter one is not automatically better; the count is shown so the label can be placed against a comparable population. The comparison here runs against the 4,524 Seafood products we publish with a parsed label, not against the whole catalogue, because list length varies far more between categories than within one.
Ingredient Safety Analysis
Full Ingredient List
king prawn (penaeus vannamei) (crustacean) (99%), salt.
Other products containing King Prawn
King Prawn is the least common ingredient on this label, appearing in 3 products across the catalog. See its safety profile.
Categories
More from Sainsbury's
High-score cross-brand comparables for Large King Prawns
Neighbours outside Sainsbury's with screening scores in the same high band as Large King Prawns (100/100 here). The 5 same-brand links above stay within Sainsbury's; these peers cross brands.
Same high-band screening score
Nearest cross-brand products by screening score (100/100 here, no caution flags on the parsed list).
Follow the flagged-label evidence
Follow the flagged-label evidence
Salt is the first flagged ingredient selected from Large King Prawns's parsed label. Start with that ingredient’s source context, then compare the rest of this 4-ingredient record.
- Inspect the FDA SAFFA and CSPI context attached to Salt. Open Salt
- Compare Large King Prawns's 0 flagged ingredients with a product from the same score neighbourhood. Compare labels
- Check how caution flags contribute to the derived screening score before drawing a dietary conclusion. Read the method
This page describes published ingredient-list and source coverage. It is not dietary or medical advice.
Barcode 01830750: product data from Open Food Facts (July 2026). Screening from FDA SAFFA and CSPI Chemical Cuisine where attached. Figures are computed from those sources, not editor-typed. Methodology. Reference only, not dietary or medical advice.