Oreoz
Also known as: Oooze, Oreos, Oreo Cookies, O.R.E.O.Z
Breeder: 3rd Coast Genetics (MaxYields)
Oreoz has emerged as one of the defining cultivars of the early-to-mid 2020s American cannabis market, sitting at the intersection of extreme visual appeal (near-black to deep purple buds coated in glassy trichomes), dessert-strain dominance with an unusually complex chocolate-and-gas profile, and extraction-grade resin density inherited from Secret Weapon's White Widow lineage. Named runner-up for Leafly Strain of the Year in 2022, it ranks in the top 150 strains on store menus nationwide. The strain was officially rebranded to Oooze after Mondelez International (parent of Nabisco/Oreo) issued a cease-and-desist for trademark infringement, though it continues to be widely known as Oreoz.
Lineage & Genetics
Cross: Cookies and Cream x Secret Weapon
Cookies and Cream (Exotic Genetix, Tacoma WA) — Girl Scout Cookies x Starfighter F2, balanced 50/50 hybrid, won 1st Place Best Hybrid at the 2014 Denver Cannabis Cup. Contributes sweet vanilla/cream/cookie-dough aroma, high resin, dense structure, and the Cookies family recognition. Secret Weapon (Vandal Genetics) — Cheese Quake (TGA Subcool) x White Widow (Dutch Passion), sativa-dominant ~60/40 hybrid. Known as the frost donor and genetic father of modern hype-monsters — the source of Oreoz's extreme trichome production, along with earthy/fuel gas undertones and increased physical potency.
Terpene Profile
Beta-Caryophyllene — 0.4%-1.2% — Spicy, peppery; interacts with CB2 receptors for anti-inflammatory/calming effects
Limonene — 0.3%-0.8% — Citrus brightness; mood-lifting quality that prevents the heavy body from feeling dampening
Myrcene — 0.2%-1.0% — Earthy, herbal, musky; enhances sedation and couch-lock body effect
Linalool — 0.1%-0.6% — Floral, vanilla, roasted marshmallow; calming, anxiolytic
Humulene — Trace-0.3% — Woody, hoppy; appetite-suppressing counterbalance
Aroma: Primary notes of sweet dark chocolate and cocoa powder. Secondary notes of campfire marshmallow, vanilla cookie dough, and creamy dairy. Tertiary sharp diesel/fuel gas, earthy tobacco, black coffee. Background of spicy black pepper and minty menthol hint.
Flavor: Inhale delivers creamy vanilla, sweet Oreo cookie, and chocolate. Mid-palate brings nutty baked goods and toasted graham cracker. Exhale finishes with spicy diesel gas, earthy coffee, and peppery finish. Lingering chocolate and fuel aftertaste. The flavor profile is consistently described as tasting like an actual Oreo cookie.
Effects & Experience
Onset: A gentle, creeping onset over 0-15 minutes with mild euphoric uplift, improved mood, and sense of happiness and mental calm. Some users report enhanced creativity and sociability during this initial window.
A warm, tingly sensation spreads from head through body at 15-60 minutes. Muscle tension releases progressively. Strong appetite stimulation arrives at this stage. At 60+ minutes and higher doses, deep couch-lock sets in, thinking slows, eyelids grow heavy, and natural sleep onset follows. Three-phase arc: cerebral lift, body melt, then sedation and sleep.
Duration: Primary effects 2-3 hours; residual body relaxation additional 1-2 hours; total session 3-5 hours
Commonly Reported Uses
Grower's Notes
Oreoz is a MODERATE feeder — does NOT need heavy feeding. Veg EC target 0.8-1.6 mS/cm, peak flower EC max ~2.2 (do not exceed). Start at 50-70% recommended feed chart strength and increase based on plant response. Monitor for tip burn and back off 10% at first sign. Silica supplementation during veg strengthens cell walls to support dense bud structures. Week-by-week flower progression: Weeks 1-3 controlled stretch usually doubling in height, focus on final training and flat canopy, transition to bloom feed. Weeks 4-6 dense bracts cluster aggressively, silver resin starts coating sugar leaves, steady nutrients and moderate watering. Weeks 7-9 flowers reach maximum density, reduce humidity aggressively below 45%, lower nighttime temps to trigger dark purple/black pigmentation via anthocyanin production, trichomes transition clear to milky to early amber.
Growth Structure and Training
Multi-top during veg with multiple top sites. LST to develop lateral spread and even canopy. SCROG highly recommended — install trellis before flipping, fill net evenly during early flower stretch. Lollipopping to remove lower growth. Defoliation: thorough leaf strip at day 21 of flower, second targeted defoliation possible at week 6 if canopy too dense. Do NOT overcrowd — bushy structure needs airflow between plants.
Pest and Disease Resistance
MOLD/BOTRYTIS is the #1 threat. Extreme bud density creates internal moisture pockets invisible from outside. By the time gray mold is visible it has already destroyed the core. Prevention: low RH under 45% late flower, strong airflow, defoliation. Break open suspect dense colas to check interiors during final weeks. Avoid foliar sprays past week 2 of flower. Late-flower light reduction during last 14 days to preserve terpene volatiles.
Flowering Time and Harvest
HARVEST: Mostly cloudy + 10-20% amber for balanced high with sedative finish. 20-30% amber for maximum sedative power. Do NOT rush — final 2 weeks produce majority of resin and the color shift; cutting early sacrifices both bag appeal and potency. Typical 56-65 days from flip.
Drying and Curing
DRYING: Hang dry whole plant in dark climate-controlled room at 60F and 60% RH for a slow 14-day dry. A patient slow dry is CRITICAL — the chocolate and gas terpenes are volatile and will be destroyed by fast drying. Drying too fast produces grassy, hay-like smell that permanently replaces the dessert profile.
CURING
Jar in airtight containers at 58-62% RH with humidity packs, minimum 2-3 weeks cure, chocolate and marshmallow notes deepen significantly during cure, burp daily first week then every 2-3 days, extended cure 4-8 weeks rewarded as flavor complexity continues developing. Common mistakes: humidity too high in late flower leading to invisible interior bud rot, harvesting too early sacrificing color shift and final resin push, fast drying destroying terpene profile, overfeeding past EC 2.2, insufficient defoliation leading to mold and uneven ripening, no airflow planning with oscillating fans non-negotiable, skipping cold nighttime finish missing the near-black coloring from anthocyanin production.
History & Origin
3rd Coast Genetics was founded around 2005 by MaxYields on the shores of Lake Michigan, Michigan. Oreoz was created in the late 2010s by crossing their Cookies and Cream cut with Secret Weapon and rapidly gained traction through social media. By 2020-2021 it exploded in popularity driven by Instagram and dispensary bag appeal with the near-black buds and silver trichome coatings becoming one of the most photographed cannabis aesthetics of the era. In October 2021, Oreoz won 1st Place Hybrid Flower at the High Times Cannabis Cup People's Choice Oklahoma. In 2022 it was runner-up for Leafly Strain of the Year. In 2023-2024, Mondelez International issued cease-and-desist letters and 3rd Coast Genetics officially rebranded the strain to Oooze, though it continues to be widely sold as Oreoz.
Awards & Recognition
- ●1st Place Hybrid Flower — High Times Cannabis Cup People's Choice Oklahoma (2021, Phresh Harvest)
- ●1st Place — High Times Medical Cup Oklahoma (2021)
- ●Runner-Up — Leafly Strain of the Year (2022)
- ●2nd Place Recreational Hybrid Flowers — Colorado Connoisseur Cup (2022)
- ●2nd Place Hybrid Flower — Alaska Cannabis Cup (2022)
- ●Leafly HighLight Strain
Notable Crosses
Strains bred using Oreoz as a parent:
Frequently Asked Questions
7 common questions about Oreoz
What is Oreoz and what are its genetics?
Oreoz is a hybrid cannabis strain (70% Indica / 30% Sativa) bred by 3rd Coast Genetics (MaxYields). It is a cross of Cookies and Cream x Secret Weapon, testing at 25-31% THC. Oreoz has emerged as one of the defining cultivars of the early-to-mid 2020s American cannabis market, sitting at the intersection of extreme visual appeal (near-black to deep purple buds coated in glassy trichomes), dessert-strain dominance with an unusually complex chocolate-and-gas profile, and extraction-grade resin density inherited from Secret Weapon's White Widow lineage. Named runner-up for Leafly Strain of the Year in 2022, it ranks in the top 150 strains on store menus nationwide.
What does Oreoz smell and taste like?
Oreoz's dominant terpenes are Beta-Caryophyllene, Limonene. The aroma is described as primary notes of sweet dark chocolate and cocoa powder. secondary notes of campfire marshmallow, vanilla cookie dough, and creamy dairy. tertiary sharp diesel/fuel gas, earthy tobacco, black coffee. background of spicy black pepper and minty menthol hint.. The flavor profile features inhale delivers creamy vanilla, sweet oreo cookie, and chocolate. mid-palate brings nutty baked goods and toasted graham cracker. exhale finishes with spicy diesel gas, earthy coffee, and peppery finish. lingering chocolate and fuel aftertaste. the flavor profile is consistently described as tasting like an actual oreo cookie..
What are the effects of Oreoz?
A gentle, creeping onset over 0-15 minutes with mild euphoric uplift, improved mood, and sense of happiness and mental calm. Some users report enhanced creativity and sociability during this initial window. A warm, tingly sensation spreads from head through body at 15-60 minutes. Muscle tension releases progressively. Duration is typically primary effects 2-3 hours; residual body relaxation additional 1-2 hours; total session 3-5 hours. Commonly reported uses include Chronic pain, Insomnia, Stress and anxiety, Appetite loss and nausea.
How hard is Oreoz to grow?
Oreoz is rated moderate difficulty. It flowers in 8-9 weeks, reaches medium (3-4 ft indoor) in height, and yields 450-600 g/m² indoors. Best suited for indoor preferred, warm and dry environments.
What are the parent strains of Oreoz?
Oreoz is a cross of Cookies and Cream and Secret Weapon. Cookies and Cream (Exotic Genetix, Tacoma WA) — Girl Scout Cookies x Starfighter F2, balanced 50/50 hybrid, won 1st Place Best Hybrid at the 2014 Denver Cannabis Cup. Contributes sweet vanilla/cream/cookie-dough aroma, high resin, dense structure, and the Cookies family recognition.
What strains were bred from Oreoz?
Oreoz has been used as a parent in several notable crosses, including Pure Michigan, Oreoz Blizzard, Dante's Inferno, Black Ice, Tagalongz. Its genetics contribute to a wide range of modern cultivars.
Has Oreoz won any cannabis awards?
Yes. Oreoz has received recognition including 1st Place Hybrid Flower — High Times Cannabis Cup People's Choice Oklahoma (2021, Phresh Harvest); 1st Place — High Times Medical Cup Oklahoma (2021); Runner-Up — Leafly Strain of the Year (2022).
Sources & References (21)
- All facts in this profile were verified against the following sources accessed May 2026:
- Strainpedia.com — Oreoz full profile
- SeedFinder.eu — Oreoz/Oooze, Secret Weapon, Cookies & Cream genealogy pages
- Leafly.com — Cannabis Cup 2021 winners, SOTY 2022 runners-up
- HENDRX Seeds & Clones — Oreoz and Oreoz Blizzy cultivar pages
- GetSeedsRightHere.com — Oreoz strain profile
- GrowDiaries.com — Strain info + grower journals
- The Hemp Doctor — Complete profile breakdown
- Mood.com — Oreoz strain guide
- Hikei Dispensary — Oreoz grow guide (PPFD, EC, flowering details)
- Planet 13 — Growing the Oreoz strain
- Seeds Here Now — Oreoz strain review + Cookies & Cream lineage
- Alchimia Grow Shop — Oreoz origin and 3rd Coast Genetics history
- Hallowedgram — Oreoz → Oooze rebrand coverage
- Greenpoint Seeds — Secret Weapon strain info
- PiffinTen.com — Secret Weapon deep dive
- The Cannigma — Cookies and Cream review
- 3rd Coast Genetics Canada — Official breeder site
- Canna Recruiter / Leafly HighLight — Awards and market position
- AllBud — Oreoz and Dante's Inferno profiles
- Veriheal Cannabis Central — Effects and medical uses
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