Double Grape: The Frost Monster of the Autoflower World
Double Grape: The Frost Monster of the Autoflower World
Strain Overview
Type: Balanced Hybrid (60% Indica / 40% Sativa)
Breeder: Mephisto Genetics
Lineage: Sour Stomper x Grape Crinkle
Market Status: A cult classic; widely considered one of the frostiest and most reliable autoflowers ever created. A staple of the "Mephisto Genetics" Reserva line.
THC Content: 22% – 27% (Very High)
Dominant Terpenes: Limonene, Caryophyllene, Pinene, Myrcene
Key Effects: Euphoric Bliss, Stress Melting, Deep Body Relaxation, "Happy" Stone
In the exclusive world of boutique autoflowers, Mephisto Genetics sits on the throne, and Double Grape is arguably their crown jewel.
While most autoflowers are judged against photoperiods, Double Grape is judged against itself. It is the strain that convinced thousands of growers to switch from photoperiods to autos. Why? Resin. This plant produces trichomes with an intensity that borders on ridiculous. It doesn't just get frosty; it looks like it has been dipped in diamond dust.
Born from two of Mephisto’s "Artisanal" lines, Double Grape was bred to be the ultimate extraction strain. It yields massive amounts of rosin, tastes like premium grape soda, and grows with a vigor that makes it beginner-friendly but expert-quality. It is, simply put, a masterpiece of selective breeding.
History and Lineage: The Clash of the Titans
Double Grape is the result of crossing Mephisto's two "Grape" powerhouses.
The Mother (Sour Stomper): The first Mephisto strain to truly break the "frost ceiling." A cross of Grape Stomper OG and Sour Crack, it brings the sweet, sour grape funk and the insane trichome coverage.
The Father (Grape Crinkle): A blend of Canadian Crinkle, Supernatural, and Ripley’s OG. It contributes the mould resistance, the fast finishing time, and the rich, creamy berry terpenes.
The Stability: Unlike many white-label autos, Double Grape has been worked to a high filial generation (often F7 or higher). This means it is incredibly stable. You won't find wild phenotype variations; every seed produces a frost monster.
Terpene Profile: Grape Soda and Gas
The terpene profile is loud, complex, and incredibly appetizing. It avoids the "earthy/hay" smell of lower-quality autos entirely.
Dominant Terpenes
Limonene (The Sweetness): The primary driver, providing a sweet, candy-like aroma that mimics artificial grape flavoring.
Caryophyllene (The Gas): Adds a distinct fuel/diesel undertone that gives the smoke body and potency.
Pinene (The Crispness): A subtle top note that keeps the sweetness from being cloying, adding a fresh "vineyard" scent.
Flavor Notes:
The Aroma: During the grow, it smells of Welch’s grape juice, sour gummy worms, and diesel fuel. It is a very "purple" smell, even if the buds stay green.
The Smoke: Thick and oily. It tastes of sweet grapes, berries, and spicy gas. It is remarkably smooth, thanks to the high resin content coating the throat.
Strain Effects: The Golden Mean
Double Grape is cherished because its high is perfectly balanced. It is potent enough for veterans but friendly enough for daily use.
The Experience
The Onset: It hits fast with a surge of happiness. The Limonene triggers a strong anti-depressant effect. You feel light, giggly, and optimistic.
The Middle: The high settles into the body. A warm, vibrating relaxation loosens the muscles. It is not a "KO" punch (unless you smoke a lot), but rather a melting sensation.
The Utility: It is a fantastic "all-rounder." You can smoke it on a Friday night to party, or on a Sunday afternoon to recover. It manages stress without erasing your personality.
The Potency: Do not underestimate it. With THC levels frequently testing over 25%, it can overwhelm new smokers if treated disrespectfully.
Best For: Making Rosin/Hash, social relaxation, treating anxiety/depression, and movie marathons.
Growing Double Grape: The Extractor's Holy Grail
If you own a rosin press, this is the first strain you should grow.
Growth Structure
The Frost: We cannot overstate this. The trichomes extend all the way out to the tips of the fan leaves. The "trim bin" after harvesting this strain is a goldmine of kief. Rosin returns of 25% to 30% are commonly reported by home pressers.
The Size: It is a medium-sized plant, typically 60cm – 80cm. It grows naturally bushy and responds very well to Leaf Tucking and mild LST.
The Vigor: It is an aggressive grower. It explodes in the vegetative stage and transitions to flower quickly.
The Yield: High quality over quantity, though yields are still excellent. Expect 100g – 150g per plant in a good hydro setup.
The Cycle: fast to medium. It finishes in 65 to 75 days from sprout.
Grower’s Tip: Because it is so bushy and leafy, defoliation is often necessary to get light to the lower buds. Don't be afraid to pluck a few fan leaves in the early flowering stretch. Also, get your carbon filter ready early; this plant stinks of sour grapes by day 30.
Final Verdict: The Rolls Royce of Autos
Double Grape by Mephisto Genetics is widely regarded as one of the Top 5 Autoflowers of all time. It shattered the myth that autos couldn't be as frosty or potent as photoperiods. It is a reliable, stable, and incredibly rewarding plant to grow. Whether you are chasing flavor, potency, or washing hash, Double Grape delivers on every front. It is the strain that defines the modern "Boutique Auto" movement.
You should choose Double Grape if:
You want the frostiest buds possible (Highest Trichome Density).
You make Rosin, Hash, or Extracts (The #1 choice).
You love sweet grape and gas flavors.
You want a reliable, stable genetic with no surprises.
Score: 9.9/10 (The Autoflower Apex)