Fresh Frozen or Dry Flowers for Bubble Hash?

The Press Club Fresh Frozen or Dried Cannabis Flowers for Bubble Hash

Todde Philips   

🇺🇸 Retired veteran, father, rock-climbing expert & rosin connoisseur

The end of the flowering cycle is an exciting time in the cannabis garden, especially if you’re planning to make some bubble hash with your bounty. Harvesting cannabis at its peak trichome development and terpene production allows the hash maker to harness the fullest potential of the plant. But there’s a decision to be made after the plants have been harvested. 

How should I prepare the cannabis for ice water extraction? 

Ice water hash makers have a couple different options when it comes to preparing cannabis material for the extraction process. One method is to hang dry the flowers as you would for smoking the buds. Another is to immediately freeze the flowers and any sugar leaf right after harvesting, known as fresh frozen material.  

So which is better, washing dried or fresh-frozen material for bubble hash?  We outlined some of the Pros and Cons of each to help you decide:


Fresh Frozen:



  • Superior quality 
  • Better terpene preservation since freezing greatly slows terpene degradation / evaporation 
  • Hash can be made just 24 hours after harvesting after a quick freeze lighter color, most notably in what’s collected from the initial wash


The Press Club Fresh Frozen or Dried Cannabis Flowers for Bubble Hash



  • Releases higher amounts of chlorophyll after multiple washes, potentially leaving the hash with a green tint  
  • Can have slightly lower yield percentages than dried flowers (after adjustment for water weight lost during the drying process)


The Press Club Fresh Frozen or Dried Cannabis Flowers for Bubble Hash


Dried Flowers: 



  • More consistent quality throughout multiple washes
  • Can provide slightly higher yield as dried trichome heads are a little tougher, allowing them to be washed off of the plant in tact 



  • Doesn’t release chlorophyll as readily as fresh frozen  
  • Hash made with dried flowers can potentially be more stable and maintain quality over a longer shelf life 




  • Terpenes evaporate during the course of the drying process 
  • Flowers need at least 2 weeks to dry after harvest, increasing production time 
  • Material needs to be rehydrated for 30-40 mins at the start of the wash

Although the above lists can be a useful guide, the strain you’re using to make hash will ultimately dictate the best method for you to use. Some strains will yield better expressions with dry buds, while others will make the best bubble hash from fresh frozen material. Experimentation is key.  

Our recommendation is to run side-by-side tests of the cultivars you’re working with and find the method that you prefer for that particular strain.  

One final note: when it comes to making hash, growing your own cannabis gives you the freedom and flexibility to work with a variety of strains, and to make both fresh-frozen and dry bud bubble hash to find out which is better. If you want to read about more advantages of growing your own cannabis, check out this article.




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