I just reviewed three varieties by THC Bio Med, they were all $6 per gram. 

I’ll keep only one around in flower form, the Landrace Indica.

The two others, won’t work for me, they aren’t functional the way I’d like them to be and I have other varieties available to me that perform much better.

So I am going to press them. But this will be my first press with tested cannabis, I know the cannabinoid levels so I can roughly calculate the efficiency of my press.

Landrace Sativa

Landrace Sativa

I pressed 6 grams of the Landrace Sativa in a 160 micron filter bag three times for 60 seconds at increasing temperatures (170f, 195f, and 210f), yielding 0.8g of usable material or 13% of the original weight of the pressed material. This variety is rated at 20.34% THC, so 100% recovery would have been 1.22 grams.

Landrace Sativa, ready to press

Adjusting for the filter bag, the weight of the flower material was reduced by 18.3% (or 1.1 grams), assuming the total amount was recoverable, only 72% was recovered.

Landrace Sativa, after pressing

The colour of the material and yield varied with temperature, the lowest temp yielded the least with a light brown colour. Higher temps increased the yield and also dark colour of the product.

Delahaze

Delahaze 

I pressed 6.5 grams of Delahaze in a 160 micron filter bag three times for 60 seconds at increasing temperatures (170f, 200f, and 215f), yielding 0.7g of usable material or 11% of the original weight of the pressed material. The THC% of this variety is 16.446%, 100% recovery would have been 1.06 grams.

Delahaze, ready to press

Removing the weight of the filter bag, the weight of the flower material was reduced by 15% or 1.0 grams, 87.5% of the total weight reduction was recovered.

Delahaze, after pressing

Far less volume was produced with this run, the product produced was a oily viscous product, while the landrace sativa produced a shatter-like material. Darker as well, but not by much.

Delahaze rosin

Double Press

For the last press I placed both filter bags and pressed them together at 210f for 60 seconds.

In all, I recovered 1.7 grams of concentrated material from pressing 12.5 grams of whole flower, a 13.6% weight recovery. The cost of the whole flower material I pressed was $75 or $44 per gram of recovered material. On top of this, I’ll soak the filter bags and press material in MCT oil to create edible oil. 

Landrace Sativa (195f on left and 170f on right)

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