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A Beginner’s Guide to ISO Hash Extraction

how to make qwiso hash

ISO hash extraction, alternatively referred to as the QWISO (Quick Wash ISO) method, is distinguished within the domain of cannabis concentrates for its simplicity and accessibility in generating robust hash. QWISO hash garners acclaim for its purity, potency, and ease of production. Unlike certain alternative extraction techniques, crafting QWISO hash doesn’t demand expensive apparatus or extensive technical expertise, rendering it an optimal starting point for those intrigued by the process of producing concentrates. Within this tutorial on how to make QWISO hash employing isopropyl alcohol, recognized as ISO hash extraction, we’ll guide you through the procedure while delving into its advantages and considerations.

Understanding QWISO Method

QWISO method involves using isopropyl alcohol to extract cannabinoids and other compounds from cannabis plant material. This method is called “quick wash” because it involves a short soaking time to minimize the extraction of unwanted plant material and chlorophyll. The process typically includes grinding the cannabis, soaking it briefly in cold isopropyl alcohol, filtering the mixture, and then evaporating the alcohol to leave behind a concentrated resin.

Materials Needed

To make QWISO hash, you’ll need the following materials: high-quality cannabis flower, isopropyl alcohol (99% purity is recommended), a grinder, a glass or stainless-steel dish, a fine mesh strainer or coffee filter, a scraping tool (such as a silicone spatula), and parchment paper or a silicone mat for collecting the finished hash.

Preparation of Cannabis

how to make qwiso hash

Start by breaking down your cannabis flower to enhance its surface area, facilitating improved extraction. Be cautious not to grind it excessively fine, as this may result in an increased presence of plant matter in the end product. After grinding, transfer the cannabis to a glass or stainless-steel container.

Qwiso Extraction Process

In the extraction, pour enough isopropyl alcohol over the cannabis in the dish to completely cover it. Stir the mixture gently for about 20 to 30 seconds, ensuring thorough saturation. The alcohol will quickly dissolve the cannabinoids and other desirable compounds from the plant material.

Filtering the Mixture

how to make qwiso hash

After the soaking period, pour the alcohol and cannabis mixture through a fine mesh strainer or coffee filter into another clean dish. This step is crucial for removing plant debris and achieving a cleaner final product. Allow the liquid to pass through the filter slowly, and avoid squeezing or pressing the cannabis material to prevent chlorophyll contamination.


how to make qwiso hash

Transfer the filtered liquid into a shallow glass or stainless-steel dish and place it in a well-ventilated area away from any open flames or heat sources. Allow the alcohol to evaporate naturally, which may take several hours depending on the temperature and airflow. Once the alcohol has evaporated completely, you’ll be left with a sticky, resinous substance – your QWISO hash.

Purging and Storing

how to make qwiso hash

To further purify your QWISO hash, you can perform a process known as purging to remove any residual solvent. This can be done by applying gentle heat to the hash while maintaining good airflow. Once purged, store your QWISO hash in an airtight container in a cool, dark place to preserve its potency and flavor.


Making QWISO hash using the ISO hash extraction method is a simple yet effective way to create a potent cannabis concentrate at home. By following these steps and using high-quality ingredients, you can produce a clean and flavorful hash that rivals professionally made products. However, it’s essential to exercise caution and follow safety protocols when working with flammable solvents like isopropyl alcohol. With practice and attention to detail, you can master the art of QWISO hash extraction and enjoy the fruits of your labor with friends or in the privacy of your own home.


1. What is QWISO hash?
QWISO hash, short for Quick Wash ISO hash, is a type of cannabis concentrate made using isopropyl alcohol (ISO) as a solvent to extract cannabinoids and other desirable compounds from cannabis plant material. It is known for its purity, potency, and ease of production.

2. Is QWISO hash safe to consume?
When made correctly and purged of residual solvents, QWISO hash is generally considered safe for consumption. However, it’s crucial to ensure that all traces of isopropyl alcohol are fully evaporated before consuming the hash. Proper purging and storage techniques are essential for safety.

3. What type of cannabis material is best for making QWISO hash?
High-quality cannabis flower or trim is ideal for making QWISO hash. Look for strains with a high cannabinoid content and terpene profile to achieve the best results. Avoid using material that is moldy, contaminated, or low in quality, as this can affect the taste and purity of the final product.

4. How long does it take to make QWISO hash?
The process of making QWISO hash typically takes a few hours from start to finish. However, the actual extraction and evaporation time may vary depending on factors such as the temperature, humidity, and airflow in your environment.

5. Can I use QWISO hash in edibles or topicals?
Yes, QWISO hash can be infused into various products such as edibles, topicals, and tinctures. Keep in mind that proper decarboxylation may be necessary if you intend to activate the cannabinoids for oral consumption.

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