How to Make Dry Ice Hash

How to make dry hash with a martini shaker !

Step 1: Gather supplies

1. Large metal martini shaker with secure lid and top.
2. 110 mesh screen square. Big enough to cover the big opening of the shaker, plus plenty of slack
3. 1-2 lbs of dry ice, broken into smaller nuggets
4. small glass jar / baby food jar
5. clean plastic flat bottomed bin * important
6. latex free & powder free gloves
7. butcher paper or tarp
8. Marijuana trimmings, close cut, small buds (no stems)

Step 2: Lay out tarp on the floor. This can occasionally get messy, especially starting out.

Step 3. Fill martini shaker canister 3/4 full with trimmings/close cut and about 5-6 small nuggets of dry ice.

Step 4. In between then canister and the top of the canister, lay the square of 110 mesh over the big opening and seal the canister with the top. *make sure the small martini lid is secure, too.

Step 5. While wearing the non latex gloves, shake the martini shaker just up and down, up and down until the outside of the canister is frosty. Its important to do shake carefully or all the trim can fall out if too much pressure is put on the lid and the canister

Step 6. When the outside is frosted, turn the canister upside down *while holding the lid on* and shake upside down for 1 minute.

– What’s happening here is the dry ice instantly freezes the bud and trim. As the trim is banged around inside the metal canister, the trichomes are breaking off and settling to the bottom. When you tip it upside down and shake, only the trichomes fall through the 110 mesh and are collected in the lid of the martini shaker.

Step 7. After you’ve shaken it upside down, turn it right-side up again and GENTLY remove the lid and keep the lid turned upside down when its removed. You’ll see the dry hashy broken off trichome powder all on the inside of the lid and on the mesh screen.

Step 8. Here’s where your bin comes in. Hold the lid *still upside down* over the bid and scrape along the lid with your gloved finger, collecting the powder down at the bottom. Then tap it into the glass jar you choose to collect the hash in. You’re doing this inside the bin so any residual hash will be collected and not on the floor. Keep the bin as clean and pure as you can so you can scrape off the hash that falls at the end. (meaning no trim pieces in it, so don’t shake the shaker over the bin)

Step 9. You can remove the small lid at the top of the martini shaker and collect the hash from there too. Make sure you dust off the mesh screen before you use it again.

Step 10. Then replace the mesh & lids on the canister and repeat steps 6-9. If its a batch that’s already been shaken right side up (step 5), it doesn’t have to be repeated because the trichomes have already been broken off. You can re-do Steps 6-9 for the same batch about 3-4 times and still get a good amount of hash from it. When there’s only a little hash collected after the 3-4th time, dump the old trim and repeat steps 3-9 until all the trim and bud you have is used up.

After you have all your hash, you can press it using a rolling pin and an old credit card to roll it into balls if you would like or use it as a powder for cooking.

The History of Hemp and its Future

It is said that the motivation for the hemp ban was that new processing technologies were developed that made it a potential competitor with the newly founded synthetic fibre and plastics industries. Hemp’s potential for producing paper also posed a threat to the timber and oil industries. Evidence suggests that commercial interests, having much to lose from hemp competition, helped propagate the reefer madness hysteria and used their influence to lobby for Marijuana Prohibition. It is debatable at to whether special interests conspired to destroy the hemp industry via Marijuana Prohibition, but evidence exists to raise the possibilities.

*The US Drug Enforcement Agency classifies all C. sativa varieties as “marijuana.” While it is theoretically possible to get permission from the government to grow hemp, DEA would require that the field be secured by fence, razor wire, dogs, guards, and lights, making it cost-prohibitive.

*The US State Department must certify each year that a foreign nation is cooperating in the war on drugs. The European Union subsidizes its farmers to grow industrial hemp. Those nations are not on this list, because the State Department can tell the difference between hemp and marijuana.

*Hemp was grown commercially (with increasing governmental interference) in the United States until the 1950s. It was doomed by the Marijuana Tax Act of 1937, which placed an extremely high tax on marijuana and made it effectively impossible to grow industrial hemp. While Congress expressly expected the continued production of industrial hemp, the Federal Bureau of Narcotics lumped industrial hemp with marijuana, as it’s successor the US Drug Enforcement Administration, does to this day.

*Over 30 industrialized democracies do distinguish hemp from marijuana. International treaties regarding marijuana make an exception for industrial hemp.

*Canada now again allows the growing of hemp.


* Hemp growers can not hide marijuana plants in their fields. Marijuana is grown widely spaced to maximize leaves. Hemp is grown in tightly-spaced rows to maximize stalk and is usually harvested before it goes to seed.

*Hemp can be made into fine quality paper. The long fibers in hemp allow such paper to be recycled several times more than wood-based paper.

*Because of its low lignin content, hemp can be pulped using less chemicals than with wood. Its natural brightness can obviate the need to use chlorine bleach, which means no extremely toxic dioxin being dumped into streams. A kinder and gentler chemistry using hydrogen peroxide rather than chlorine dixoide is possible with hemp fibers.

*Hemp grows well in a variety of climates and soil types. It is naturally resistant to most pests, precluding the need for pesticides. It grows tightly spaced, out-competing any weeds, so herbicides are not necessary. It also leaves a weed-free field for a following crop.

*Hemp can displace cotton which is usually grown with massive amounts of chemicals harmful to people and the environment. 50% of all the world’s pesticides are sprayed on cotton.

*Hemp can displace wood fiber and save forests for watershed, wildlife habitat, recreation and oxygen production, carbon sequestration (reduces global warming), and other values.

*Hemp can yield 3-8 dry tons of fiber per acre. This is four times what an average forest can yield.

Hemp Technologies- Building a Hemp House

mission is to enrich and enhance the health and welfare of our planet and those living on it through reductions in toxicity levels and increased use of sustainable building materials that reduce energy cost. Building a greener, healthier tomorrow, TODAY!?”

The stand behind their product and are a model for what great things can be made using hemp. Here are some hemp facts:

*Henry Ford’s first Model-T was built to run on hemp gasoline and the CAR ITSELF WAS CONSTRUCTED FROM HEMP! On his large estate, Ford was photographed among his hemp fields. The car, ‘grown from the soil,’ had plastic panels made from a mixture of 70% cellulose fibers.

*Hemp is the miracle plant of our time, breathing in 4x the carbon dioxide (CO2) of trees during it’s quick 12-14 week growing cycle. Trees take 20 years to mature vs 4 months for Industrial Hemp! Our forests are being cut down 3x faster than they can grow! One acre of hemp produces as much cellulose fiber pulp as 4.1 acres of trees!!! (Dewey & Merrill. Bulletin #404. U.S. Dept. of Age. 1916)

Hemp Technologies will travel to your school, college, University or company and present a 4-6 hour seminar/workshop on theory and practical applications of Industrial Hemp + Lime in building. This seminar includes practical, hands-on demonstration of using Hemp/Lime for building a sample wall.

From their website:
Key Properties of Tradical® Hemcrete®
Low Density
Clean Air
High Thermal Resistance (R-Value = 2.5 per inch)
High Thermal Inertia
Good Vapor Permeability (breathable)
Design Flexibility + adjustable thickness
Fire and Pest Resistant (NO Termites)
Significantly Reduce Co2 Emissions
Inherently Airtight
No Waste
No Mold
No Dry Rot
Natural Substrates for Plasters and Renders
Low Air Infiltration
Zero Land Fill at end of life

Indoor Hydroponic Inline Exhaust Fan – How-To

Hi I’m Darren here at the Grow Show. I’ll be speaking today on inline fans and how to choose one to best suit your growing environment. There are many key factors you want to think about when choosing an inline fan. The first will be your fan diameter. Your fan diameter will determine the effectiveness and speed at which your air moves in your room . Most of the fans will be either 6 or 8 inches. When thinking about which fan will suit your needs, you want to think about the volume of your room. To get the volume of the room you multiply the width times length times height and you will find the cubic feet. Then you want to match that to the fan you are going to use in your environment. When choosing a fan you want to consider the volume of the room you are occupying and the efficiency of the fan. Its important to get as close to a 1 to 1 ratio as possible. Another thing to consider is the number of lights you are running in your room and how much heat they are putting off. If you are running multiple 1000 watt lights and multiple hoods, you’re going to want to run a fan with a higher volume rate to keep your room and bulbs cooler so your lights can sit closer to your plan canopy line. We have three main brands of fans. We have our popular Active Air line that come in 4, 6, 8, 10, and 12 inch occupancies. The larger the fan the more air you will move. You may think “I have a 6″ reflector, can I run an 8 inch fan? ” Yes, you can. You can use a duct reducer and connect it to your 6 inch hood. The reduction will reduce your flow rating, but it will still be greater than if you just used a 6 inch fan. The great thing about an Active Air Fan is it comes with a 5 year in-store warranty. If anything was to happen to your fan, you can bring it to the Grow Show and we will make sure its working and get you back to your garden. We also have Vortex fans. Our Vortex fans have a higher flow rating and come with a 10 year in-store warranty. We also have Ostberg fans, but they only come in 6 inch flange size. The last thing you want to consider when choosing a fan is if you are running a carbon filter in your room. If you are, you want to be sure you are optimizing the flow rating. If your filter has a higher flow rating than your fan, you’re going to want to upgrade your fan because you are just limiting the effectiveness of your filter. For example, if you’re using a filter with a 600 cfm flow capacity, but only using a 6 inch fan with a 400 flow rating, You’re not optimizing the effectiveness of the flow rating of your filter. That concludes our introduction to in-line . If you have more questions please visit us at the Grow Show in Ann Arbor on Stone School Road or visit our website at

Bushmaster for Your Sativas

Bushmaster by Humbolt County halts vertical growth of a plant, which is ideal for tall, leggy sativas. The plants then focus more on creating bushier plants, allowing more equal distribution of light. Equal light promotes more flower growth and making your plants yields increase. Your outcome is taking all the great head effects from a stativa strain and (without crossing it with an indica) turning it into a bushy, stocky, high yielding plant.

Powdery Mildew

o you have powdery mildew on your medical marijuana? Yikes! Powdery mildew in the grow room? That’s nothing to play with. It can spread very quickly and attack all of your plants. Powdery mildew prevents the plants from growing by messing with their photosynthesis. Also, its hazardous to people as well.

Our solution?

1. Remove leaves that are completely covered in it.

3. Pour in a spray bottle and spray it all over the top and bottom of each leaf. As it dries, it removes the powdery mildew.

Another very important tip : Clean up the room and keep it clean.

LST Medical Marijuana Growing

This is a video of 8 medical marijuana plants being grown aeroponically with the “LST” (low stress training) technique. The grower from this video combined aeroponics and Low Stress Training. Enjoy!

Cannabis Curing and Storage

A must-have is a proper, clean glass jar for your cannabis. If you have a large quantity, its a a good idea is to have a daily amount handy in a smaller container that’s easier to access and store. An Excerpt on Curing and…