Black Ice Hash is a cannabis concentrate associated with the Black Ice cultivar.

Leafly currently identifies Black Ice as an indica-dominant hybrid created from Black Domina × White Widow. Its reference profile lists about 25% THC and 1% CBG, with caryophyllene as its dominant terpene followed by limonene and myrcene. Consumer reports most frequently describe sleepy, relaxed and tingly experiences.

These figures apply to Leafly’s reference flower profile, not automatically to Black Ice Hash.

Hash concentrates cannabis resin and trichomes, so a Black Ice Hash product can have a substantially different THC concentration from ordinary Black Ice flower.

For an individual product, useful information includes:

• total THC and THCA;
• CBD and minor cannabinoids;
• terpene results;
• batch number;
• laboratory testing;
• contaminant screening;
• producer information;
• production date.

For broader concentrate education, explore the Cannabistopgrade Hash and Concentrates section, read the Cannabistopgrade Cannabis Concentrates and Dabbing Guide, or visit Cannabistopgrade.com.

Black Ice Hash Quick Facts

Topic	Educational overview
Product	Black Ice Hash
Black Ice genetics	Black Domina × White Widow
Classification	Indica-dominant
Reference flower THC	About 25%
Exact hash THC	Batch-specific
Dominant terpene	Caryophyllene
Common consumer reports	Sleepy, relaxed, tingly
Strongest cannabis	No permanent universal winner
Longest-lasting strain	Cannot reliably be predicted by strain name
Strawnana	Another name for Strawberry Banana
Strawberry Banana genetics	Banana Kush × Strawberry phenotype of Bubble Gum

What Is the Strongest Pot in the World?

There is no scientifically established permanent answer to “what is the strongest pot in the world?”

Cannabis potency changes between:

• strains;
• growers;
• phenotypes;
• harvests;
• individual batches;
• product categories;
• testing laboratories.

A modern flower strain can test in the high-20% or low-30% THC range, while concentrates may contain much more THC.

Leafly’s updated 2026 strongest-strain resource highlights cultivars such as Permanent Marker, GMO Cookies, Motorbreath, Runtz, Hash Burger, Kush Mints, Cereal Milk, Bruce Banner, Fatso and Original Glue as prominent high-potency examples.

Those are not permanent world-record rankings.

The more scientifically defensible answer is:

The strongest cannabis depends on the individual batch and product category rather than the strain name alone.

What Is the Strongest Cannabis in the World?

If strongest cannabis includes concentrates, then flower and hash should not be compared as though they are identical products.

Cannabis concentrates can contain much higher cannabinoid concentrations than ordinary buds.

CDC explains that cannabis oils and concentrates used in products such as dabs can involve highly concentrated THC. How cannabis affects a person depends partly on THC concentration, product type, previous experience and whether other substances are involved.

A product such as Black Ice Hash may therefore contain considerably more THC than Black Ice flower.

However, this does not mean Black Ice Hash is automatically the strongest cannabis product.

Only batch-specific testing can determine that.

Flower vs. Hash vs. Concentrates

Product	General potency context
Cannabis flower	Usually lower THC than concentrates
Kief	Concentrated trichomes
Traditional hash	Concentrated resin
Bubble hash	Concentrated trichomes/resin
Rosin	Concentrated extract
Budder/wax	Often high-THC
Shatter	Often high-THC
Distillate	Can reach very high cannabinoid concentration

There is substantial overlap between products, so actual laboratory testing remains more useful than the category name.

What Is the Strongest Strain of Marijuana?

There is no permanent strongest strain of marijuana.

Current strain resources contain several cultivars with high-potency reputations, including:

Modified Bananas

Hash Burger

GMO Cookies

Kush Mints

Motorbreath

Permanent Marker

Original Glue

Bruce Banner

Fatso

Cereal Milk.

But individual batches can differ dramatically.

A strain with a reputation for 30% THC may produce a batch testing at 24%, while another cultivar might produce a laboratory-tested 29% batch.

THC potency is therefore better understood as a batch characteristic than as a permanent property of a strain name.

Why Highest THC Labels Need Caution

Independent testing has shown that cannabis package labels do not always match measured THC.

A 2025 peer-reviewed study examined 277 cannabis products, including 178 flower products and 99 concentrates, purchased from 52 Colorado dispensaries. Researchers found that only 56.7% of flower products were within ±15% of their labeled THC potency, compared with 96% of concentrates. Measured THC was significantly lower than the label overall for both categories.

An earlier Colorado study similarly found that approximately 70% of tested flower samples measured more than 15% below the THC values stated on their labels.

Another analysis of 107 commercial flower samples found label claims as high as 58.20% THC, while independent laboratory analysis measured a maximum of 36.55% within that sample set.

Therefore:

highest labeled THC ≠ automatically highest actual THC.

What Strain Gets You High the Longest?

There is no reliable scientific evidence showing that one named strain consistently gets everyone high the longest.

Duration depends on more than strain genetics.

Important factors include:

• method of consumption;
• THC concentration;
• amount consumed;
• tolerance;
• individual metabolism;
• previous cannabis exposure;
• product formulation.

NIDA states that the noticeable effects of smoked marijuana generally last around 1–3 hours, while cannabis consumed in foods or drinks can last much longer.

Health Canada provides broader guidance indicating that inhaled cannabis effects can begin within seconds to minutes, reach fuller effects within roughly 10–30 minutes, last up to about six hours, and sometimes leave residual effects for up to 24 hours.

That variation shows why it would be inaccurate to claim:

“Black Ice lasts the longest”

or

“Strawberry Banana is the longest-lasting weed strain.”

Does Higher THC Last Longer?

Not necessarily.

Higher THC can intensify intoxication, but duration is not determined by THC percentage alone.

CDC states that greater THC concentration can produce stronger effects on the brain, but that does not establish a simple rule that twice the THC means twice the duration.

What Is the Best THC?

There is no scientifically defined best THC percentage.

The word best depends on what someone means.

If “best” means:

Highest THC

Look at reliable batch-specific testing.

Most accurate potency

Look for reputable laboratory testing and a traceable Certificate of Analysis.

Highest quality cannabis

THC should be considered alongside:

• terpene profile;
• freshness;
• contaminants;
• genetics;
• storage;
• labeling accuracy.

Lowest health risk

Higher THC is not automatically better.

CDC notes that greater THC concentration can produce stronger effects and that some people with cannabis use disorder may increasingly seek stronger products to achieve the same high.

So:

There is no universal “best THC.” The appropriate measure depends on the question being asked, and higher THC does not automatically mean better cannabis.

Strawnana Strain

Strawnana is another name for Strawberry Banana.

Leafly currently identifies Strawberry Banana, or Strawnana, as a hybrid developed by DNA Genetics in collaboration with Serious Seeds.

Its genetics are:

Crockett’s Banana Kush × Strawberry phenotype of Bubble Gum.

Leafly’s current reference profile lists approximately:

21% THC

1% CBG

with limonene as the dominant terpene, followed by myrcene and caryophyllene.

The most frequently reported consumer effects are:

Relaxed

Happy

Euphoric.

These reports are subjective rather than guaranteed effects.

Strawberry Banana Strain

The Strawberry Banana strain became popular partly because of its fruit-forward aroma and resin production.

Leafly describes it as a hybrid and notes its reputation for high THC and heavy resin production. Strawberry, tree fruit and tropical notes lead its current consumer flavor profile.

The simplified lineage is:

Bubble Gum → Strawberry phenotype

plus

Banana Kush

resulting in

Strawberry Banana / Strawnana.

Strawberry Banana Quick Profile

Feature	Current reference
Other name	Strawnana
Classification	Hybrid
Genetics	Banana Kush × Strawberry Bubble Gum phenotype
Reference THC	About 21%
Reference CBG	About 1%
Dominant terpene	Limonene
Common effects	Relaxed, happy, euphoric
Common flavors	Strawberry, tree fruit, tropical

Is Strawberry Banana One of the Strongest Strains?

Strawberry Banana has a long-standing reputation as a potent cultivar, but its current Leafly reference profile of about 21% THC is not among the very highest numbers displayed for modern high-potency strains.

This illustrates an important point:

A strain can have a reputation for strong effects without having the largest THC percentage on a current strain database.

Consumer experience can be influenced by:

• cannabinoid composition;
• terpene profile;
• tolerance;
• individual sensitivity;
• product format.

THC alone does not fully define how intense a cannabis product feels.

Black Ice vs. Strawberry Banana

Feature	Black Ice	Strawberry Banana
Other name	Black Ice	Strawnana
Classification	Indica-dominant	Hybrid
Genetics	Black Domina × White Widow	Banana Kush × Strawberry Bubble Gum phenotype
Reference THC	About 25%	About 21%
Dominant terpene	Caryophyllene	Limonene
Common reports	Sleepy, relaxed, tingly	Relaxed, happy, euphoric
Actual batch potency	Variable	Variable

These percentages describe current reference profiles rather than guaranteed potency for every product.

Black Ice Hash vs. Black Ice Flower

Feature	Black Ice Flower	Black Ice Hash
Genetics	Black Domina × White Widow	Usually derived from Black Ice material
Product type	Dried flower	Concentrated cannabis resin
Reference THC	About 25%	Must be batch tested
Potency	Variable	Often more concentrated
Terpenes	Caryophyllene-led profile	Processing/batch dependent
Effects guaranteed?	No	No
COA important?	Yes	Yes

The flower percentage should therefore never simply be copied onto Black Ice Hash.

For additional information about concentrates, visit the Cannabistopgrade Cannabis Concentrates Guide.

Does Stronger Cannabis Mean Better Cannabis?

No.

High THC does not automatically establish:

• premium quality;
• better genetics;
• stronger terpene expression;
• cleaner cultivation;
• better taste;
• greater freshness;
• a better consumer experience.

Laboratory potency is one measurement.

A complete product assessment should also consider contamination testing, terpene information, freshness and accurate labeling.

This is particularly important because modern research continues to identify discrepancies between labeled and independently measured THC values.

Frequently Asked Questions

1. What is Black Ice Hash?

Black Ice Hash is a concentrated cannabis-resin product associated with Black Ice genetics. Leafly identifies Black Ice as Black Domina × White Widow, with about 25% THC in its current reference flower profile. The hash itself requires separate batch testing.

2. What is the strongest cannabis in the world?

There is no permanent strongest cannabis product or strain. Potency varies by batch, and concentrates can reach much higher THC concentrations than ordinary flower.

3. What strain gets you high the longest?

No strain is scientifically established as consistently producing the longest high. Duration depends heavily on method of consumption, THC concentration, amount, tolerance and individual metabolism. Smoked cannabis effects are commonly noticeable for around 1–3 hours, while other routes can last longer.

4. What is Strawnana?

Strawnana is another name for Strawberry Banana, a hybrid made from Banana Kush and a Strawberry phenotype of Bubble Gum. Leafly currently lists it at about 21% THC.

5. What is the best THC?

There is no universal best THC percentage. Higher THC can produce stronger intoxication but does not automatically mean better cannabis, and labeling accuracy can vary between products.

Authoritative Outbound Links

Leafly – Black Ice Strain Profile

Leafly – Strawberry Banana / Strawnana Profile

PubMed – Accuracy of Labeled THC Potency

NIDA – Marijuana Research Overview