Everything the scan holds on this record, grouped by subject. Blue bars show how much information is held; they are not positive or negative scores. Fields with nothing behind them are counted, not listed.
Features
1 of 2
Packaging detail
opaque glass bottle
Materials and composition
2 of 25
H3 Q8: Materials (adapts to brand: 100% cotton? / where is the linen from? / hemp?)
Is Kosterina worth it?
Single ingredient
1
Scan result
13 of 61
Scan note (above product table)
89 SKUs scanned, 1 filtered, 88 in the score result. 36 of 88 included SKUs have composition evidence; no score is published below 100%.
Total styles scanned
89
Last scanned
2026-09-13
Full catalogue scan?
no
Reason / scan status
36 of 88 included SKUs have composition evidence; no score is published below 100%.
Publication status
withheld
Method version
Throne Standard full-catalogue 2026.09
In-scope catalogue total
89
Products read
37
Products unresolved
52
Products in catalogue
89
Catalogue read %
42
Clean verdict
NOT ASSESSED
Health and safety
1 of 3
H3 Q6: Is [Brand] non-toxic / PFAS-free?
Is Kosterina organic or tested?
Certification
2 of 6
H3 Q7: Is [Brand] GOTS / certified?
Where can I buy Kosterina and how much?
Grade / certification
Published harvest + polyphenol data per batch; organic line certified
Sourcing and supply chain
5 of 44
Single origin
1
Overall: where this info comes from
Packaging source
Source type
Packaging source: last checked
Ownership and legal entity
2 of 19
owner name
Independent (Kosterina Corporation; founded 2016 by Katerina Mountanos)
Identity
14 of 24
Brand name
Kosterina Original Early Harvest Koroneiki EVOO
H3 Q1: Is [Brand] sustainable / ethical?
Is Kosterina real, 100% Olive oil?
Answer 1
Partly some Kosterina products are certified organic (USDA Organic (CCOF) - Organic Everyday line only); others are not.
H3 Q2: Where is [Brand] made?
Is Kosterina a whole food / single ingredient?
Answer 2
Yes. Kosterina is single-ingredient cold-pressed Olive oil, minimally processed with nothing added.
H3 Q3: Who owns [Brand]?
Where is Kosterina from?
Answer 3
Kosterina is single-origin from Single origin, southern Greece.
H3 Q4: Is [Brand] legit / worth it?
Is Kosterina cold-pressed and unrefined?
Answer 4
Kosterina is Cold-pressed, early harvest, unrefined.
H3 Q5: Is [Brand] fast fashion?
Is Kosterina a seed oil?
Answer 5
No. Kosterina is not a seed oil.
Answer 6
Organic. Certifications: Published harvest + polyphenol data per batch; organic line certified.
Answer 7
From $25. Ships to US.
Answer 8
Kosterina is one of the genuinely verified real Olive oils, which is the main thing worth paying for given how much oil on the market is adulterated.
Claims and evidence
2 of 11
Authenticity verified (proof it is 100% real)
Single-origin early-harvest Koroneiki with per-harvest published polyphenol counts (573-663 mg/kg) and dated harvest on a transparency page
Verified by
Hold The Throne product analysis + brand ingredients
Delivery and shipping
2 of 3
Light-protective packaging
1
Packaging
Widely recyclable
Price and commerce
4 of 13
Price tier
$$$
Product data (JSON)
[{"name":"Extra Virgin Duo Gift Set, Happy Holidays","ingredients":"","animal":[],"additives":[],"processing":"unknown","plant_based":null,"natural_pct":null,"unreadable":true,"reason":"no product-specific ingredient list found","url":"https:\/\/www.kosterina.com\/products\/holiday-extra-virgin-duo-gift-set"},{"name":"Now We're Cooking Set","ingredients":"","animal":[],"additives":[],"processing":"unknown","plant_based":null,"natural_pct":null,"unreadable":true,"reason":"no product-specific ingredient list found","url":"https:\/\/www.kosterina.com\/products\/now-were-cooking-set"},{"name":"Extra Virgin Olive Oil Shot (3-Months)","ingredients":"","animal":[],"additives":[],"processing":"unknown","plant_based":null,"natural_pct":null,"unreadable":true,"reason":"no product-specific ingredient list found","url":"https:\/\/www.kosterina.com\/products\/evoo-shot-90-pack"},{"name":"Olive Oil Duo (Tins)","ingredients":"Original Extra Virgin Olive Oil: Greek Extra Virgin Olive Oil, Greek Herb & Lemon Olive Oil: Greek extra virgin olive oil, lemon oil, oregano oil, onion oil, black pepper oil, , , , Try Olive Oil Duo with:, , Greek Herb & Lemon Olive Oil: Greek extra virgin olive oil, lemon oil, oregano oil, onion oil, black pepper oil , Greek Herb & Lemon Olive Oil: Greek extra virgin olive oil, lemon oil, oregano oil, onion oil, black pepper oil
Price From
$25
Further detail
20 of 87
NOVA processing class
1 Unprocessed / minimally processed
kosterina.com
Women-Owned
1
Grown In
Single origin, southern Greece
Country
United States
Positive note 1
Verified genuine: Single-origin early-harvest Koroneiki with per-harvest published polyphenol counts (573-663 mg/kg) and dated harvest on a transparency page
Positive note 2
Single origin, not a blend
Positive note 3
Prints a harvest/crush date
Positive note 4
High polyphenol: 573-663 mg/kg
Negative note 1
DTC/marketing-heavy; verify the harvest date on the bottle
Ships to
US
Whole food
1
Processing level
Minimally processed
Additives
None
Oil type
Olive
Extraction method
Cold-pressed, early harvest
First cold press
1
Unrefined
1
Harvest date shown
1
Polyphenols (mg/kg)
573-663 mg/kg
Last checked
2026-07-28
