Sale Cryogenic Kief Sifter Cryogenic Technology Tom’s Grasshopper cryo-vibratory sifter is 20 times faster than conventional cryo-tumbling. It uses high-frequency vibration and liquid CO2 to quickly extract the kief from your dried trim or flowers. It comes with two... MSRP: Was: $12,000.00 Now: $4,999.00 Add to Cart