Colorado Issues Health Advisory and Recall for Sweetwater Cannabis Flower Sold at 31 Stores After Mold and Aspergillus Contamination

Key Points
  • Colorado health and revenue officials issued a Health and Safety Advisory and voluntary recall for marijuana flower from Sweetwater Group LLC due to unsafe levels of yeast, mold, and Aspergillus contamination.
  • The contaminated batches, sold between November 16, 2025, and February 3, 2026, exceeded Colorado Marijuana Rule 4-215 safety limits and posed a public health threat.
  • Sweetwater collaborated with the Marijuana Enforcement Division to initiate a voluntary recall, and consumers are advised to destroy or return the affected products and report any adverse health effects.
  • The contaminated products were distributed at 31 licensed dispensaries statewide, including stores in Denver, Pueblo, Colorado Springs, Boulder, and other Colorado cities.

(Photo credit: KTTN Radio).

Colorado health and revenue officials have issued a Health and Safety Advisory and voluntary recall for marijuana flower cultivated by Sweetwater Group LLC, doing business as Sweetwater Cannabis, after testing revealed unsafe levels of total yeast, mold, and Aspergillus in multiple harvest batches.

The advisory, issued February 6 by the Colorado Department of Revenue and the Colorado Department of Public Health and Environment, states that the affected flower exceeded limits established under Colorado Marijuana Rule 4-215 and is considered a threat to public health. The contaminated product was sold between November 16, 2025 and February 3, 2026 at 31 licensed marijuana stores across the state.

Regulators say Sweetwater worked with the Marijuana Enforcement Division to initiate a voluntary recall once the contamination was confirmed.

The affected cultivation license is 403R-01141.

Harvest batches that tested above allowable limits for total yeast and mold include:

Three of those batches also tested positive for Aspergillus contamination:

State officials are advising anyone who purchased these products to either destroy them or return them to the store where they were purchased for proper disposal. Consumers who experience adverse health effects are urged to seek medical attention and file a report with the Marijuana Enforcement Division.

The affected flower was sold at stores operated by Strawberry Fields, Xclusive Cannabis, Magnolia Road Cannabis Company, Green Tree, Green Remedy, Cannabis World, Mile High Dispensary, Sugarleaf Dispensary, The Sacred Blend, The Buzz GJ, and multiple Nuvue Pharma locations across Denver, Pueblo, Trinidad, Colorado Springs, Boulder, Aurora, Federal Heights, Grand Junction, Cortez, Gunnison, Sterling, Log Lane Village, Moffat and Fort Garland, among others.