Written by Ad OpsOverview
M.A.C. Stomper is a resin-forward, mostly indica hybrid bred by the acclaimed cultivator Capulator, the creator of Miracle Alien Cookies (M.A.C.). Growers and consumers seek it for dense trichome coverage, nuanced fruit–cookie aromatics, and a balanced body–mind effect profile. While definitive public lab datasets remain limited, reports consistently place its potency in the strong category, with many batches testing well above 20% THC.
In marketplaces where it’s available, M.A.C. Stomper routinely draws attention for its bag appeal. Thick, glistening heads, tight calyx stacking, and complex terpenes make it a connoisseur selection. Leafly and other databases list the variety as indica-leaning, aligning with user feedback describing heavy relaxation alongside vivid flavor.
M.A.C. Stomper has also become a useful parent in modern breeding. Seed catalogs and strain trackers show it contributing resin, color, and potency to crosses in multiple projects. This is a hallmark of a well-bred cultivar: it excels as flower and as a donor of desirable traits in the next generation.
The strain’s popularity stems from three pillars: predictable structure for growers, elite resin for extractors, and layered sensory appeal for consumers. Whether rolled into a joint or pressed into rosin, M.A.C. Stomper tends to deliver a satisfying, terpene-rich experience. Its careful pedigree and Capulator’s reputation have helped it secure a cult following across indoor craft scenes.
History of M.A.C. Stomper
Capulator rose to prominence after stabilizing Miracle Alien Cookies (M.A.C.), a cut famous for frosty flowers and a citrus-cookie fuel bouquet. M.A.C. Stomper continues this line of resin-forward breeding, adapting the hallmark M.A.C. aesthetic toward a more indica expression. The goal appears consistent with Capulator’s broader program—hybrids that marry bag appeal, aroma complexity, and elite potency in manageable, indoor-ready plants.
Publicly available summaries identify M.A.C. Stomper as a Capulator-bred, mostly indica strain. Leafly lists it as an indica-leaning offspring in the broader M.A.C. universe, with related entries like Mac 11 further illustrating the family tree. Grower anecdotes frequently highlight shorter internodes and fast-setting trichomes relative to more lanky sativa-dominant MAC expressions.
As with many modern elites, M.A.C. Stomper’s rollout relied more on selective distribution than mass-market seeds, which fostered scarcity and hype. The cultivar then appeared in hybridization projects from third-party breeders, suggesting early adopters recognized its breeding value. That pattern mirrors other top-tier cuts: limited initial access, followed by rapid dissemination through crosses.
By the early 2020s, M.A.C. Stomper’s reputation was cemented within connoisseur communities. Resin density and a polished MAC-adjacent terpene stack made it a compelling choice for dab-oriented markets. Its steady inclusion in newer hybrids underscores its staying power in a constantly evolving scene.
Genetic Lineage and Related Hybrids
Capulator is credited as the breeder of M.A.C. Stomper, and the cultivar is widely recognized as part of the MAC family. The "Stomper" moniker commonly points to genetics related to Grape Stomper in modern breeding parlance, but Capulator has not publicly confirmed a precise donor cut for that side. As a result, enthusiasts often describe the lineage as MAC-derived with an indica-heavy Stomper influence while acknowledging the lack of an official public pedigree release.
Despite the opacity of the exact cross, its role in subsequent hybrids is well documented. For example, the 2024 Leafly 420 list highlighted a Sunken Treasure Seeds hybrid derived from Mendo Breath × Oz Kush × Mac Stomper, grown by Sweetgrass in living soil. That shout-out signals M.A.C. Stomper’s value for adding resin, dense structure, and potency to polyhybrids.
SeedFinder and other genealogy trackers record M.A.C. Stomper serving as a parent in lines like Apple Stomper from High Five Genetics. There, Mac Stomper is combined with an Apple Fritter-influenced selection, indicating breeders are leveraging its frost and mouth-coating terpenes. When multiple, unrelated projects turn to the same parent, it’s a strong marker of consistent trait transmission.
Leafly’s MAC page also surfaces M.A.C. Stomper as a related strain within the MAC ecosystem, alongside entries like Mac 11. That clustering reflects the cultivar’s adjacency in terpene profile and effect reports. In practical terms, consumers familiar with MAC should expect a similar baseline with a heavier, more relaxed finish from M.A.C. Stomper.
Appearance and Structure
M.A.C. Stomper tends to exhibit compact, indica-forward morphology. Nodes stack tightly, making canopies easier to manage in small tents and multi-tier racks. Under strong light, bracts swell into golf-ball to cola-length clusters with minimal internodal gaps.
Top-shelf samples show thick frosting that appears almost granular under magnification due to bulbous capitate-stalked trichomes. This density contributes to a glassy sheen and high stickiness when broken apart. Pistils usually range from tangerine to deep copper, threading through lime-to-forest-green calyxes.
Anthocyanin expression is not uncommon in cooler runs, yielding violet streaks along sugar leaves and the outer bract layers. While not guaranteed, temperatures in the 65–68°F (18–20°C) range during late flower can prompt these hues without sacrificing vigor. That contrast, combined with heavy trichome coverage, drives strong bag appeal.
Bud structure leans toward firm and resin-saturated rather than airy or foxtailed when VPD and light intensity are properly dialed. Broken buds reveal dense resin heads, often leaving a visible ring of oil on grinder teeth. The grind releases a terpene plume that lingers, a frequent tell of higher terpene content.
Aroma
Aromatically, M.A.C. Stomper blends dessert-shop sweetness with grape, citrus, and cookie-dough tones. Dry pulls often reveal a vanilla shortbread or powdered sugar edge, followed by tangy grape peel and orange zest. Beneath that sits a warm, peppered finish, suggestive of beta-caryophyllene.
In cured flower, the top notes can shift with phenotype and cure method. Some jars lean toward grape soda and candied citrus, while others skew more bakery-forward, echoing MAC’s cookie lineage. A low-and-slow dry that preserves monoterpenes typically intensifies the confectionary character.
When ground, the bouquet expands into a brighter, more volatile expression. Limonene-linked citrus and pinene-linked pine snap to the front for the first 30–60 seconds, a window where many consumers note peak aroma. As the air equilibrates, the profile settles into a warm, spicy-sweet base.
Flavor
On the palate, M.A.C. Stomper balances sugared cookie and grape-citrus candy with a savory, pepper-spice undercurrent. Initial draws tend to be sweet-forward, coating the tongue with vanilla-graham and soft grape skin. Exhales often highlight orange-lime zest and light pine before drifting to a warm, toasty finish.
Vaporization at 350–375°F (177–191°C) accentuates limonene and pinene brightness, producing a crisp, perfumy lift. Higher temperatures, 390–410°F (199–210°C), push the caryophyllene–humulene spice and deeper caramelized sugar notes. Many users report the first three inhales as the sweetest, with flavor tapering gradually after the fifth pull.
In concentrates, especially fresh frozen rosin, the grape-citrus candy frame can amplify markedly. Hashmakers note a syrupy mid-palate and lingering bakery finish that persists through multiple dabs. That persistence is consistent with a terpene ensemble anchored by caryophyllene and oxygenated sesquiterpenes that hold up under heat.
Cannabinoid Profile and Potency
Direct, large-sample laboratory datasets specific to M.A.C. Stomper are limited in public sources, but its MAC lineage and market reports indicate strong potency. Many MAC-derived cuts routinely clock 20–26% THC in commercial labs, with elite batches surpassing 28% in top-tier indoor environments. M.A.C. Stomper commonly falls in that "mid-20s" band when grown optimally under high PPFD and balanced VPD.
Total cannabinoids typically land between 22–30% by dry weight in top-shelf indoor flower, reflecting THC-dominant chemotypes with minor contributions from CBD, CBG, and CBC. CBD levels, when present, generally register below 0.5%, keeping the psychoactive character firmly THC-forward. CBG often appears in trace amounts, ~0.1–0.6%, depending on harvest timing and phenotypic variation.
In concentrates, especially solventless rosin pulled from high-resin phenos, total THC can exceed 70% with terpene totals in the 3–7% range. Such numbers hinge on meticulous pre-harvest handling and cold-chain preservation of heads. The cultivar’s dense trichome coverage supports above-average hash yields relative to many dessert hybrids.
It’s important to recognize that environment, harvest window, and cure can swing potency by several percentage points. Studies across modern cannabis show that post-harvest practices alone can shift measurable terpenes and cannabinoids by 10–30% relative to poorly handled controls. M.A.C. Stomper responds predictably to best practices, rewarding careful growers with consistent high-potency results.
Terpene Profile
Reports from growers and consumers place beta-caryophyllene, limonene, and myrcene among the dominant terpenes in M.A.C. Stomper. Caryophyllene often leads, lending warm spice and a peppered finish, with limonene adding citrus brightness and mood lift. Myrcene contributes to the grape-candy roundness and relaxed body feel typical of indica-leaning desserts.
Secondary terpenes frequently include alpha-pinene, humulene, and linalool. Pinene sharpens the nose on grind and can add a "cooling" sensation in vapor. Humulene and linalool introduce woody–herbal and soft floral undertones that extend the finish.
Total terpene content for well-grown indoor flower commonly falls between 1.5–3.5% by weight. Top craft runs can push above 4%, especially when dried at 60–62°F (15.5–16.5°C) and 55–60% RH with adequate airflow. Conversely, hot or rushed dries can slash terpene totals by 30% or more, muting candy and bakery notes.
The grape-citrus-cookies triangle suggests a volatile fraction rich in monoterpenes (limonene, pinene) layered over sesquiterpene spice (caryophyllene, humulene). That balance explains the initial bright pop on inhale followed by a deeper, longer tail. Extractors relying on fresh-frozen inputs often capture this tiering most vividly.
Experiential Effects
Subjective reports align on a weighted but balanced effect: a calming, body-forward base with a clear, lightly euphoric head. The onset typically arrives within minutes when inhaled, with peak effects at 20–30 minutes and a 2–3 hour duration for most users. Many describe tension release and a quieted internal monologue without heavy mental fog.
The initial lift can feel mildly cerebral, aided by limonene and pinene brightness. As the session continues, myrcene and caryophyllene seem to assert a more grounded, tranquil body feel. This arc suits after-work decompression, creative wind-downs, and social evenings that don’t require razor-sharp focus.
Dose matters considerably. At lower inhaled doses, users often retain motivation and conversational ease, rating the strain as "functional-relaxed." With heavier consumption, couchlock and time dilation become likelier, especially in sedentary settings or paired with alcohol.
As with all cannabis, inter-individual variability is significant. Set, setting, tolerance, and concurrent substances will shape the experience. Newer consumers should start low and wait 10–15 minutes between inhalations to titrate comfortably.
Potential Medical Uses
M.A.C. Stomper’s indica-leaning profile and caryophyllene-forward terpene stack make it a candidate for evening symptom management. Users commonly report relief from stress, generalized anxiety, and situational muscle tension. The calming body effect may also support wind-down routines that facilitate sleep onset in some individuals.
On the pain front, THC-dominant, caryophyllene-rich cultivars are frequently used for mild-to-moderate neuropathic and inflammatory discomfort. While controlled clinical data on specific strains are limited, meta-analyses of inhaled cannabinoids have found modest-to-moderate efficacy signals for chronic pain. Individual response varies; some patients do better with balanced THC:CBD options, while others prefer potent THC-dominant varieties like M.A.C. Stomper.
Appetite stimulation is a common secondary effect at moderate doses. For patients managing reduced appetite due to stress or certain medications, this can be a useful adjunct. Conversely, those attempting caloric restriction may wish to schedule use outside of meal planning.
Medical consumers should consult healthcare professionals before incorporating THC-rich cannabis, particularly if they take medications metabolized by CYP450 enzymes. Start low, go slow, and keep a journal of dose, timing, and outcomes. Evidence-informed, personalized adjustments usually produce the best results over time.
Comprehensive Cultivation Guide
Environment and climate
M.A.C. Stomper performs best in controlled indoor environments where light intensity and VPD can be finely tuned. Aim for 78–82°F (25.5–28°C) in vegetative growth and 74–80°F (23–27°C) in early flower, dropping to 68–72°F (20–22°C) in the final two weeks to color-up and tighten buds. Maintain 60–65% RH in veg, 50–55% in weeks 1–3 of flower, and 45–50% in weeks 4–6 before easing to 40–45% in the final stretch.
Lighting and PPFD
Under high-efficiency LEDs, target 400–600 PPFD in early veg, 700–900 PPFD in late veg/early flower, and 1,000–1,200 PPFD for weeks 3–7 of flower if CO2 enrichment is used. Without CO2, cap PPFD around 900–1,000 to avoid photoinhibition. A DLI of 45–55 mol/m²/day in flower tends to produce dense, resinous colas without foxtailing.
CO2 and airflow
CO2 at 1,100–1,300 ppm supports higher PPFD and improves water-use efficiency. Combine with 10–20 air exchanges per hour and multidirectional circulation to prevent microclimates. Keep leaf surface temperatures 1–2°F (0.5–1°C) above ambient to optimize stomatal conductance.
Media and pH
The cultivar is adaptable to coco, peat-based soilless mixes, and living soil. In drain-to-waste coco, maintain 25–35% runoff with a pH of 5.8–6.1 and an EC of 1.6–2.1 mS/cm in mid–late flower. In soil, a pH of 6.3–6.7 facilitates micronutrient uptake, especially calcium and magnesium critical for dense calyx formation.
Nutrition
M.A.C. Stomper appreciates steady calcium and magnesium, particularly under LEDs with strong blue/red spectra. In coco, supplement 100–150 ppm Ca and 40–60 ppm Mg during peak demand. Nitrogen should taper from 180–220 ppm in late veg to 120–160 ppm in mid flower; phosphorus 60–90 ppm and potassium 200–280 ppm support ripening.
Irrigation strategy
In coco, smaller, more frequent irrigations (3–6 per light cycle) help prevent EC spikes at the root zone. Target 10–15% runoff each event if automated. In soil, water to full saturation and allow 30–40% container dryback to re-oxygenate roots, adjusting frequency to pot size and canopy demand.
Plant training
The cultivar’s compact internodes respond well to topping at the 5th or 6th node, followed by low-stress training to build 8–16 main tops in 5-gallon containers. A single or double trellis keeps the canopy flat and light-saturated. Moderate defoliation at day 21 and day 42 of flower improves airflow and lowers botrytis risk in dense colas.
Vegetative timelines
From rooted clone, 14–21 days of veg usually produces 24–30-inch plants ready for flip in a sea-of-green or multi-top canopy. Seed plants may require 21–28 days to show desirable structure before flowering. Uniform canopies simplify light positioning and reduce shading that can suppress lower bud sites by 20–30%.
Flowering time and stretch
Expect a flower window of 63–70 days for most phenotypes, with some elite cuts finishing as early as day 60 under dialed conditions. Stretch is moderate—typically 1.5× from flip—making pre-flip height planning straightforward. The cultivar sets frost fast; visible capitate heads often blanket bracts by week 4.
Yield expectations
In optimized indoor rooms, 1.5–2.5 oz/ft² (450–750 g/m²) is a realistic range, with high-PPFD, CO2-enriched systems reaching 3.0 oz/ft² (900 g/m²) in skilled hands. Hashmaker phenos tend to have slightly lower flower mass but higher resin yield, a common trade-off. Consistency improves with phenotype selection across 20–40 seeds if starting from a seed run.
Pest and disease management
Dense, sugary colas can invite botrytis if RH creeps above 55% late flower. A preventative IPM with weekly scouting, sticky cards, and biologicals like Bacillus subtilis or Serenade can reduce disease pressure. For insect control, rotate botanicals and beneficials (e.g., Beauveria bassiana, nematodes, predatory mites) and avoid late flower sprays that can mar flavor.
Deficiency and toxicity tips
LED-intensive rooms often reveal latent calcium/magnesium deficiencies as interveinal chlorosis and curled margins. Respond with modest Cal-Mag supplementation and confirm root-zone pH is within target. If tips burn and leaves claw, back nitrogen 10–20% and flush to stabilize EC.
Outdoor and greenhouse considerations
Outdoors, M.A.C. Stomper prefers warm, dry climates with diurnal swings of 20–25°F (11–14°C) late season to color up. In humid regions, prioritize canopy thinning, aggressive airflow, and rain cover to avoid bud rot. Greenhouses with dehumidification and night heating allow near-indoor quality and preserve terpenes.
Harvest timing
Monitor trichomes at 10×–30× magnification. A common target is 5–10% amber, 80–90% cloudy, which balances potency and flavor depth. Harvesting too early (clear-heavy) can blunt the strain’s dessert character and shorten effect duration.
Dry and cure
Dry at 60–62°F (15.5–16.5°C) and 55–60% RH for 10–14 days, with gentle airflow that does not directly hit flowers. Transition to a cure at 62% RH for at least 3–4 weeks; terpene richness and smoothness often improve measurably between weeks 4 and 8. Data from craft operations suggest proper curing can increase perceived aroma intensity by 20–40% versus rushed dries.
Post-harvest handling for resin
If washing for hash, chop into fresh-frozen within 60 minutes of harvest and freeze at −10 to −20°F (−23 to −29°C). Keep the cold chain intact through wash and press to maximize head integrity. Skilled operators report above-average bag appeal in both 90 and 120 µm fractions with this cultivar.
Quality benchmarks
Top lots exhibit dense, oil-rich heads, vibrant sugar-leaf glisten, and a sweet grape–citrus–cookie bouquet on jar crack. Ash color is a limited quality proxy but should trend light when dried and flushed properly. Lab tests from reputable facilities should show total terpenes above 1.5% for truly expressive flower.
Common mistakes
Excess heat in late flower can mute terpenes and encourage foxtailing, reducing visual grade. Overfeeding nitrogen past week 4 produces dark, leathery leaves and drags on ripening. Skipping canopy management increases microclimates, risking powdery mildew and botrytis in dense tops.
