Sour Starter
Sour Starter appears in 24 indexed US food products. No FDA SAFFA status or CSPI rating is attached in this snapshot, so this page reports prevalence rather than a safety verdict.
What the data can answer
Sour Starter appears in 24 catalogued products, but this snapshot has no FDA SAFFA status or CSPI Chemical Cuisine rating attached to it. This page therefore cannot answer whether the ingredient is safe from those sources. It can show how often it occurs, where it tends to sit on labels, and which kinds of products contain it.
- 24
- catalogued products
- #8,251
- usage rank of 247,206
- 6
- named brands represented
- 61%
- average depth down ingredient lists
Catalog prevalence comes from Open Food Facts ingredient lists. FDA SAFFA and CSPI Chemical Cuisine labels are shown only when the source record contains them.
Sour Starter sits in the busiest tenth of the catalog (#8,251 / 247,206)
- Usage rank
- #8,251
- of 247,206 ingredients that appear in at least one catalogued product, tied with 260 others that also appear in exactly 24 products.
- Typical depth in an ingredient list
- 61%
- Averaged label depth puts Sour Starter in the lower half of the list (61% of list length, mean slot 11.4). Compound ingredients and OCR noise mean this cannot stand in for quantity.
Derived by this site from the ingredient lists of every catalogued product (Open Food Facts), recomputed on each data refresh. 247,206 ingredients have at least one appearance and are ranked here. Usage and list position describe prevalence, not safety.
Reading this ingredient record
Use prevalence before concern
Only 4.2% of linked products carry any separately flagged ingredient. The stronger differentiator here is market placement: Sour Starter spans 6 named brands and is led by the Plant-based foods and beverages group. Start with Buttermilk Dinner Rolls; Chicago-Style Sourdough Boule; MINER'S SOURDOUGH BREAD when comparing real formulations. Because the flagged component may be something else, neither the low co-occurrence rate nor the 98.8/100 product average proves this ingredient safe.
6 named brands carry this ingredient
The processing evidence is heterogeneous rather than a single shelf pattern: the largest NOVA group contains 20 of 24 classified products, leaving a meaningful remainder elsewhere. This breadth is why the page reports label depth, category, and product examples separately. Those dimensions help locate comparable products; combining them into a stronger safety claim would hide the variation the catalog actually contains.
Next check: compare label position across two brands before treating prevalence as equivalent exposure.
How do the sampled products compare?
Each point is one of the 16 sampled products listed below: its overall safety score against how many separately flagged ingredients its label carries. Bubble size is the number of ingredient rows the label actually resolved to.
Safety score vs. flagged-ingredient count for products containing Sour Starter
Products Containing Sour Starter
16 busy labels from the 24 indexed products that list Sour Starter:
Peer ingredients with comparable catalog mass
High-volume peers for Sour Starter: 24 products, mean screening score 98.8/100. Axes below stay distinct so count-neighbors do not duplicate score-neighbors.
Similar mean product score
Mean product-score neighbours (≥50 scored products), kept separate from the product-count peers above.
Next steps from the Sour Starter page
Start from Sour Starter's 24 catalogued appearances and the attached source fields, then open the product rows that match your use case.
- Open the product sample for Sour Starter and read how the term sits on real packages. See listed products
- Move to a second ingredient page and compare registry fields plus catalog mass side by side. Compare a peer
- Check the methodology for how FDA SAFFA, CSPI, and Open Food Facts rows are joined on this site. See source joins
This page describes published source classifications and product-label coverage. It is not dietary, allergy, or medical advice.
Sour Starter — common follow-ups
Why is there no FDA/CSPI verdict on Sour Starter? ▼
This snapshot has no FDA SAFFA status or CSPI Chemical Cuisine rating attached to Sour Starter, so PlainFoodSafe does not present a source-backed safety verdict. The page reports catalog prevalence (#8,251 of 247,206 ingredients) and label position instead.
Which product shelves show up most often with Sour Starter? ▼
Sour Starter ranks in the top decile by product count (#8,251 of 247,206), appearing in 24 indexed products led by Plant-based foods and beverages. The sample list below is a slice of that footprint, not the full universe.
Why is Sour Starter so common on ingredient lists? ▼
The source record does not name a technical effect, yet Sour Starter appears in 24 products (#8,251 usage rank). High prevalence here describes formulation frequency, not an approved use level.
Regulatory status: FDA SAFFA (Sour Starter). Safety ratings: CSPI Chemical Cuisine; product presence: Open Food Facts via PlainFoodSafe (September 2026). Figures are computed from those sources, no editor-typed counts. Methodology · State regulations.