GLASS / Concentrates / Erva Solventless Legacy Hash Black Widow

Solventless Legacy Hash Black Widow

Name: Erva Solventless Legacy Hash Black Widow
Brand: Erva

Erva · sativa hybrid · 1 g

$45 lowest of 3 stores$45/g · $0.070/mg

Dazed - Monson · Monson

Menu price, before taxChecked Oct 7, 9:45 AM ET

THC71.2%

Truth checkNo flag

Range$45-$50

$20$55

This price $45
MA 1 g median $30
Middle half of MA 1 g prices $25 to $44

Lowest price, last 3 days: lowest seen. Dashed: typical store.

Open Dazed - Monson's menu Alert me under $45

Prices at 3 stores

Dazed - Monson

Monson · local

Checked Oct 7, 9:45 AM ET

64% posted test$0.070/mg

$45↗

High Hopes Cannabis Dispensary

Hopedale · local

Checked Oct 7, 5:51 PM ET

71.2% last known$0.070/mg

$50↗

Green Choice Dispensary

Blackstone · local

Checked Oct 7, 3:21 PM ET

$0.070/mg

$50↗

Based on listings published by stores, as of Oct 7, 2026. Not a lab test by GLASS. How the truth check works.

Distance is straight-line from the place you picked. Menu prices, before tax. Prices are as listed by each store. Updated daily.

Proof for the truth check

See the proof

The numbers and where they come from

Store menu	Dazed - Monson, Monson (via joint-ecommerce)
Scraped	Oct 7, 2026, 9:44 AM ET
Listed THC	64%
Posted test value	64% total THC (used for value and ranking) THC as posted
Fields posted by the platform	THC 64%, THCA 18.8%
Check it yourself	Open this product on the store menu

Comparison group

Compared with 4,483 products in the same category and size (concentrates, 1 g). Median 78.1%; 99th percentile 95.7%. This product sits above 23.0% of them.

Bars: how many products list each THC value. Dashed line: 99th percentile. Red marker: this product.

What this means

The listed THC is not out of line with similar products, and nothing we hold contradicts it.

What it does not mean

This is not a lab test by GLASS. We only read what stores and their menu platforms publish.
A listing can differ for many reasons: a new batch since we recorded it, THCA shown as THC, a typing error, or a platform quirk.
It says nothing about the store, the brand or why the number differs.

Based on listings published by stores, as of Oct 7, 8:45 PM ET. How the truth check works · Report an error

Truth check

Last-known listed THC

71.2%

No flag

0%105%

Shaded: middle half of 4,483 similar products (71.9 to 83.8%). Solid line: median 78.1%. Dashed line: 99th percentile 95.7%. Marker: this product.

Lists 71.23% THC. Higher than 23% of 4,483 similar products we track (concentrates, 1 g).

See the proof below

Price per mg of THC

$0.070/mg

Dollars per mg of THC by posted test value at the lowest in-stock price: $45 ÷ 640 mg of THC (1 g × 64%).