By / December 13, 2022

Weed Care, Delayed by Contaminated Cannabis, Will Now Launch in Jan 2023

The Swiss pilot project Weed Care, which is set to be the first-ever trial of legal adult-use cannabis distribution with THC in Europe, is set to begin January 30, 2023, after a four-month delay.

Follow along with the latest updates from Weed Care and other legalization and lifestyle news by downloading our free cannabis news app.

Weed Care, a Landmark Study

Weed Care, hailed as a landmark study which is expected to “pave the way” for other adult-use cannabis trials in Switzerland and Europe, is back on track after the second batch of cannabis was approved.

Pure Production AG has confirmed that it has received approval from Swiss health authorities to supply the Weed Care trial, after its first 30kg batch “narrowly” failed to meet quality standards.

Those involved hope that the delay will allow for initial lessons to be learned from the project and facilitate the many other critical studies that are expected to be authorized “in the coming weeks.”

The Weed Care Delay

The Weed Care pilot project was originally scheduled to launch in Switzerland’s third most populous city, Basel, on September 15 and was to last until March 2025.

However, days before the regulated sale of cannabis for adult use was to launch in some Basel pharmacies, the city’s health department announced that the cannabis provided “narrowly failed to meet a quality standard stipulated in the ordinance on pilot trials of the Narcotics Act.”

The Swiss legal framework surrounding the controlled sale of adult-use cannabis for research requires that the products are grown organically rather than through the much more tightly controlled indoor cultivation.

First Weed Care Batch Contained Non-Organic Pesticides

Analysis of Pure’s first batch revealed the presence of 0.1 to 0.2 parts per million (ppm) of Fluopyram, a pesticide “not approved for organic cultivation,” which is believed to have come from contaminated greenhouse soil “years before” Pure began using the site.

Although the Fluopyram levels are well within conventional food consumption limits (lettuce is 15 ppm), strict legislative guidelines led to the decision to incinerate the 30 kg batch and suspend the Weed Care trial until a solution is found.

Lino Cereghetti, COO of Pure Production, told BusinessCann, “At the end of the day, for us, there was never a question of releasing this batch unless they chose to revise the thresholds, because we’ve been fighting for quality cannabis in Switzerland for years.”

Limited Options

So began a “six-week” discussion between the government and the Weed Care project about how to find an alternative source of product so it could begin as soon as possible.

“The options were limited, to be honest; there aren’t many recreational markets in the world capable of exporting. So Canada was considered, but then we had to make sure the suppliers were growing organically according to Swiss regulations, which further narrowed down the potential suppliers,” Cereghetti explained.

While the option of importing products from Canada was reported in the Swiss press amid radio silence from the Basel authorities, it is understood that this was only a “fallback option” if the second batch of Pure was not approved. The import would have been legally possible, as the controlled distribution of cannabis for adult use has an experimental and research status, which is allowed by the International Conventions.

“Even if we had used Canadian products, it would only have been to fill the gap; they would have been replaced by Swiss production.”

Pure Managed to Harvest Acceptable Batch for Weed Care

While these discussions were ongoing, Pure was able to harvest a second batch from another site that “has been operated organically for 30 years.”

It has now received its authorization from the federal office for use in the Weed Care program, and it has been confirmed that its second batch “meets all quality assurance criteria.”

As originally planned, Pure will supply two hashish and four cannabis flower products to selected pharmacies in Basel, which will be available for purchase from January 30, 2023.

Despite this delay to the Weed Care launch, the Basel-Stadt Department of Health, the University Psychiatric Clinics, the Aargau Psychiatric Services, and the University of Basel continued the recruitment.

Approximately 340 participants out of a total of 370 have been enrolled in Weed Care, and they will be included in the study, with the remaining 30 should be integrated before the start date.

Lessons Learned

Cereghetti said that while he “doesn’t see any additional barriers to implementation,” the Weed Care project is not called an “experimental project by accident.”

He suggested that the whole approach of the study was to gather evidence to create a better regulatory system and that this delay “will provide the initial lessons for large-scale regulation later on.”

In addition, he argued that the lessons learned from the delay will make what is expected to be nearly a dozen similar pilots that will follow in the coming weeks and months “easier and faster.”

“We are doing pioneering work here for the entire cannabis industry in Switzerland. Those who will follow us will have an easier time because of the learning cost we paid.”

“Many things have been tested for the first time. Many processes and pathways that didn’t exist before have now been created.”

(Featured image by Washarapol D BinYo Jundang via Pexels)

DISCLAIMER: This article was written by a third-party contributor and does not reflect the opinion of, its management, staff, or its associates. Please review our disclaimer for more information.

This article may include forward-looking statements. These forward-looking statements generally are identified by the words “believe,” “project,” “estimate,” “become,” “plan,” “will,” and similar expressions. These forward-looking statements involve known and unknown risks as well as uncertainties, including those discussed in the following cautionary statements and elsewhere in this article and on this site. Although the company may believe that its expectations are based on reasonable assumptions, the actual results that the company may achieve may differ materially from any forward-looking statements, which reflect the opinions of the management of the company only as of the date hereof. Additionally, please make sure to read these important disclosures.

First published in Newsweed, a third-party contributor translated and adapted the article from the original. In case of discrepancy, the original will prevail.

Although we made reasonable efforts to provide accurate translations, some parts may be incorrect. assumes no responsibility for errors, omissions or ambiguities in the translations provided on this website. Any person or entity relying on translated content does so at their own risk. is not responsible for losses caused by such reliance on the accuracy or reliability of translated information. If you wish to report an error or inaccuracy in the translation, we encourage you to contact us.

Comments are closed for this post.