→Bubble hash from 90µm screens contains more heads and less plant debris — screen size is the most important documentable quality trait.
→Rosin quality depends on starting material, temperature (70–90°C) and pressure - without these figures, comparisons between batches are worthless.
→Demand a COA with a pesticide and heavy metal panel for every concentrate - including solventless ones like bubble hash or rosin - not just a residual solvent result.
→Know the process group of your product (sieve, ice water, press) – this determines quality characteristics and storage requirements.
→Full-melt is a melting property, not a production method – always check whether a product description clearly separates process and quality trait.
→Don't confuse 'Live Resin' with 'Live Rosin' – Live Resin is solvent-based (BHO/PHO), Live Rosin is pressed solventless, despite the similar name these are completely different processes.