# Bubble Bags and Ice Water Hash Extraction: The Complete Guide | CannaCity URL: https://cannacity.net/bubble-bags-to-make-hash-the-complete-guide-to-ice-water-extraction/ [Weed online in UK](/) / [Blog](https://cannacity.net/blog/) / Bubble Bags to Make Hash — The Complete Guide to Ice Water Extraction # Bubble Bags to Make Hash — The Complete Guide to Ice Water Extraction - [Hash in UK](https://cannacity.net/category/hash-in-uk/) October 16, 2025 by Canna City 3 minutes This page was last updated on **October 22, 2025** ![Buy hash online Halloween UK](https://cannacity.net/wp-content/uploads/2025/10/bubble-bags-for-making-hash-770x270.jpg) If you are interested in making first-class hash at home, bubble bags are the key to making it a pure and potent concentrate. This method of ice water extraction has changed the way we consume solventless hash, and we are going to take you through the entire process. ## What are Bubble Bags? Bubble bags are filter bags having different micron screens, such that the trichomes may be separated from the plant material using agitated ice water. The process is quite easy, sanitary, and produces hash without any chemicals or solvents. The respective bags harvest different sizes of the trichome heads and allow for differing grades of the hashish produced. ## Choosing your Bubble Bag Set **The Micron Screen Breakdown** | **Micron Size** | **Function** | **Hash Quality** | | --- | --- | --- | | 220μ | Work bag – plant material is harvested | No hash collected | | 190μ | Primary filtration | Low quality | | 160μ | Secondary filtration | Medium quality | | 120μ | Premium collection | High quality | | 73μ | Best trichome heads | Top shelf quality | | 45μ | Fine heads | Very high quality | | 25μ | Small particles | Good quality | It is suggested that novices use a 4-bag set (220, 160, 73 and 25 micron) which works perfectly. Experienced extractors usually prefer 8-bag sets for more exact separation. ## Hints for Success **Before Starting:** - Put your product in the freezer for at least 24 hours. This creates brittle trichomes which helps to separate them from the formation. - Use lots of ice — as cold as possible. - Work in a cool environment to avoid heat in the process. - Get a good starter work bag (220 micron) for your first line of defence. **Extraction Process:** 1. The bags are prepared in the bucket in size order — smallest micron to the largest. 2. Ice, product, and water are used in a 3:1:1 ratio. 3. The mix is agitated gently for 15–20 minutes — agitating too hard will release chlorophyll. 4. Let the product settle for 10 minutes and drain. 5. Collect the hash from all bags carefully. ## Common Errors to Be Avoided - Do not hurry the drying of the hash. If wet, it will form mold and spoil. - Spread the hash thinly on a piece of parchment or put it into a freeze dryer. - Proper drying will take 5–7 days at room temperature, in the dark, in a well-ventilated environment. - Avoid heavy agitation. It is tempting to work the product hard, but gentle agitation preserves the heads of the trichomes and prevents contamination. Think of it along the lines of washing delicate garments, not mixing up concrete! ## Quality Signs The best hash from the bubble bags should be light blonde or golden in colour, completely melt with heat (full melt) and have an agreeable smell. It is generally the 73-micron bag which will provide the best quality _“full melt”_ hash, whilst larger or smaller microns provide _“food-grade”_ hash — material for edibles or for pressing into rosin. ## Storage and Care - The hash should be kept in an airtight container in a cool, dark place. - Many extractors use vacuum-sealed bags and store them in freezers for longer preservation. - The bags must be cleaned after use with cold water and a light soapy solution straight after employing. - Do not use hot water, which will ruin the mesh screens. - They should also be stored clean and completely dry to avoid mildew appearing. **Tip:** Keep notes of runs made — record water temperature, agitation time, and yields to improve your technique run by run. Bubble Bags are the secret to transforming quality material into superior hash through patience and technique. Start from good genetics, keep low temperatures, and respect the process — the results will speak for themselves. ## 🌿 Ready to Make Your First Batch of Solventless Hash? Visit Canna City — home of the [best cannabis strains](/shop/) and everything else needed for your next extraction run, delivered discreetly and directly to your door. 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