How 3× Filtered Hash Resin Is Made: Everything You Need to Know

Definition of "3 Times Filtered"

The 3 times filtered hash represents one of the purest forms of CBD concentrates available today. This specific designation intrigues many consumers. Discover exactly what this product is, how it’s made, its benefits, and the optimal way to use it.

Origin and History of the Method

Hash has been consumed for millennia in various forms, such as charas in India or Moroccan hash. With technological advancements, especially in the 1990s, ice-water extraction emerged, giving rise to "bubble hash." In France, the term "3 times filtered" refers to bubble hash that undergoes three successive filtrations to eliminate plant impurities as much as possible, resulting in a pure resin concentrated in cannabinoids.

Basic Principle

Three times filtered hash involves mechanical extraction without chemical solvents. Ice-cold water is used to solidify the trichomes (resin glands rich in cannabinoids) and separate them from the plant matter. The mixture then passes through three successive screens (approximately 220 µ, 160 µ, and 73 µ), each capturing undesirable particles, leading to extremely pure resin.

3x filtered CBD

Step-by-Step Process

Here is the detailed process to follow for producing 3 times filtered resin.

Required Equipment

Bubble bags (filter bags) with screens of 220 µ, 160 µ, and 73 µ
Two clean and sturdy buckets
Very cold water and a large amount of ice cubes
Plastic spatula or spoon
Parchment paper for collecting and drying the resin

1st Filtration (220 µ)

After gently agitating the flower/trim mixture in ice-cold water, pour the solution through the 220 µ screen to retain larger plant fragments. Trichomes pass through for subsequent filtering.

2nd Filtration (160 µ)

The solution from the first filtration passes through a 160 µ screen to remove finer plant particles, retaining medium to small-sized trichomes.

3rd Filtration (73 µ)

The third filtration uses a 73 µ screen to collect only the purest, cannabinoid-rich trichomes. After settling, this fine resin is retrieved, dried, and compacted, yielding the final hash product.

Benefits of the Three Times Filtered Method

Purity and Concentration

Triple filtration produces a hash highly concentrated in CBD (40% to 70%) while nearly eliminating all plant impurities, bitterness, and chlorophyll taste.

Preserved Aromatic Profile

Unlike solvent-based extractions, cold water perfectly preserves terpenes, providing cannabis-specific flavors and aromas.

Taste and Appearance

Three times filtered hash ranges in color from light beige to golden, with a crumbly to malleable texture, offering a smooth and aromatic taste experience.

Recommended Usage

Ideal for vaporization (160°C to 180°C) to preserve cannabinoids and terpenes. It can also be used as an infusion after dissolving in a fatty substance.