Bubble Hash

Best Strains for Bubble Hash: 5 Plant Indicators to Look For

by | May 22, 2024

Bubble Hash
Industry articles feature contributions from cannabis tech industry experts, company representatives, PR agencies, and ghostwritten Op/Eds. While we provide basic editorial reviews, views expressed in these articles do not necessarily represent those of Cannabis Tech.

Ideal Strains for Bubble Hash

This may come as a surprise to you, but not all cannabis strains are ideal for washing bubble hash. I am sure we all wish it was as easy as just picking your favorite strain! Really, the only way to find out if your cultivar will produce a high yield and good hash, is to actually wash it. With that being said, there are some clues you can keep an eye out for that might indicate that the plant will wash well. You can even run a test wash to give you an idea of how well it will wash. In this article we will discuss what to look for in a cannabis plant to determine if it will wash well. We will also discuss the art of the test wash and how it could save you a lot of time and money.

What Makes a Good Washer?

When we say “good washer”, we mean a cultivar that will yield at least 4% and produce high quality hash when the flower is washed into bubble hash using bubble bags. The 3% yield mark from fresh frozen flower weight to bubble hash is around where you would break even on the costs and the revenue. This of course can vary depending on your market. 

So, how can you tell if a certain cultivar will get you the yield you need? There are a few things you can find on the plant itself that can give you some guidance. Let’s take a look at each:

strains for bubble hash
Photo by Chris Buchanan on Unsplash

Trichome Density

This refers to the amount of trichomes within a given area. Is the bud completely coated? Are there some gaps without trichomes? You want a thick covering of trichomes all over the bud. The more trichomes the better as this is what you will be extracting. 

Trichome Structure

The structure of the trichome is just as important as how many trichomes there are. You want trichomes that will break off easily and not be too oily. Ideally, the trichomes are large and bulbous and connected to small, weak stems. This is sometimes referred to as the ‘weak-neck trait’. This type of structure is most commonly found in capitate-stalked trichomes. 

The cuticle strength can also be considered. This is the ‘shell’ of the trichome head. Weak cuticles should be avoided or you run the risk that they break open during the wash. 

The best method of trichome inspection is using a microscope or magnifying glass (such as a jeweler’s loupe) to get a closer look.

Feel & Shape

When you rub the buds between your fingers, it should feel gritty, almost sandy. This is a very good indicator that you’ve found a good washer. You also should look for fluffy buds. Fluffy buds have more exposed surface area which makes it easier for the water to get to the trichomes when washing. Dense buds generally do not make good washers.


One of the biggest traits hash consumers look for is the smell. It has to smell amazing! Strong smell indicates high levels of terpenes which are essential for high quality bubble hash. Stick your nose in the bag and give it a good whiff before you decide to wash.

Run a Test Wash

Bubble Hash
Bubble Hash

Once you have done your inspection and you think you have a good washer, it is always a good idea to run a test wash. Simply place some ice, water, and around 14-28 grams of flower into a mason jar. Put the lid on and aggressively shake that jar for about 5 minutes. Next, sit the jar down and let the hash settle to the bottom of the jar. Once the jar has fully settled, take a look at how much hash has accumulated on the bottom. As you run test washes more and more, you will develop a feel for what indicates a good washer. In general terms, there should be at least a teaspoon’s worth. The picture above turned out to be a good washer.

Pro Tip: Use the same amount of flower every time you run a test wash so that you can develop a baseline for what indicates a good washer.

Strains That Wash Well

To get you started, we have compiled a list of strains that generally wash well. We highly suggest you do inspections and a test wash as outlined above, but this is a good place to start your hunt.

Strains that might wash well:

  • GMO
  • Papaya
  • ChemDog
  • Meat Breath
  • Strawberry Banana
  • StrawGuava
  • Cake Crasher
  • Cherry Pie
  • White Widow
  • Cookies varieties
  • Gorilla Glue

bubble hash

Not every strain or even every crop will be sufficient for washing. You need flower that will yield at least 4% or else the effort and money will not be worth it. You can visually inspect your flower to try and determine if it will make a good washer. Things to look for include the amount of trichomes (trichome density), the trichome structure (looking for big heads with weak necks), the feel and shape (should be sandy or gritty to the touch and fluffy buds are better than dense buds), and the smell. You can also run a test wash to help determine if those buds will wash well. It is a learning process so do not get discouraged and just keep on washing!