A worker cuts a marijuana plant during the harvest Feb. 13, 2019, at Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Jake May | MLive.com)

Swiping a security a card against a scanner, a worker in medical scrubs and a hair net cracks open a door emblazoned with warning signs -- and bright white light comes flooding out.

A step through the boot wash and he's inside one of 27 austere, clinical rooms at largest medical marijuana grow facility in Michigan. He's there to check on young marijuana plants, recently transplanted, that are destined for medical marijuana patients.

Every movement of his -- and of the 80 other employees at the $13 million, 50,000-square-foot Green Peak Industries headquarters -- is caught on camera.

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Employees work to harvest marijuana plants at Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Jake May | MLive.com)

The high security and contamination precautions are a cost of doing business for Green Peak's CEO Jeff Radway, who left his retirement from a 30-year career in the apparel industry to invest in the green wave of cannabis in Michigan.

Two weeks ago plants moved into the headquarters facility.

The company just harvested its first crop of marijuana this week from its research and development facility.

Despite the young age of his company and his relative newness to the marijuana industry, Radway has major plans for Green Peak.

"We're expanding this facility by 170,000 square feet across the street, and we're actually increasing capacity by 300 percent," Radway said.

That's to meet the demand in the recreational marijuana market, which the state will likely launch at the end of this year.

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Jeff Radway, CEO of Green Peak Industries, stands in his company's new headquarters Feb. 13, 2019, at Harvest Park in Windsor Township. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants. (Jake May | MLive.com)

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Jeff Radway, CEO of Green Peak Industries, stands between rows of marijuana plants in the flower room at the Research and Development Facility for Green Peak Industries at 1669 Jolly Road on Tuesday, Dec. 11, 2018 in Lansing. (Kaiti Sullivan | MLive.com)

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Employees work to harvest marijuana plants Feb. 13, 2019, at Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Jake May | MLive.com)

This week, the company completed its first harvest from its small 3,000-plant research and development facility at 1669 Jolly Road in Lansing.

About 800 plants in 17 different varieties were harvested, Radway said. In a couple of weeks, the company will harvest another 800 plants. They're selling it wholesale.

Much attention has been paid to the supply of medical marijuana from licensed growers to the market. In early January state regulators allowed unlicensed provisioning centers to reopen, and for caregivers to continue to supply untested marijuana to provisioning centers to address a shortage of supply for patients.

Radway -- as well as a number of state-licensed testing labs -- have opposed the move, as more than 60 pounds of untested caregiver marijuana have been recalled for contamination.

Radway said he has seen no signs of a shortage in the marketplace.

"The totals from our second harvest are not yet fully sold," Radway said. "If the licensed, legal provisioning centers needed product, they would be calling us to place orders. So I'll let you draw your own conclusion on that."

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Marijuana plants fill the flower room at the Research and Development Facility for Green Peak Industries on Jolly Road on Tuesday, Dec. 11, 2018 in Lansing. (Kaiti Sullivan | MLive.com)

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A first look on a tour of the Green Peak Industries Headquarters at Harvest Park in Windsor Township. The company is going by the brand name of its future retail stores, Skymint. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants. (Jake May | MLive.com)

Inside the headquarters

Two weeks ago plants were moved into a 50,000-square-foot, $13 million headquarters facility at Harvest Park in Windsor Township southwest of Lansing. When it's fully operational, the building will house 15,000 plants and harvest a crop almost daily.

The company is going by its retail brand name, Skymint. Soon it will be seeking state and local approvals for retail medical marijuana provisioning centers across Michigan.

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A hallway between flower rooms at the Green Peak Industries Headquarters at Harvest Park in Windsor Township, seen Feb. 13, 2019. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants per harvest. (Jake May | MLive.com)

Every room in the state-of-the-art facility is self-contained -- with its own air handling system and climate controls.

If there's an outbreak of a pest or fungus in a crop, workers can contain it without contaminating every plant in the building. All surfaces are anti-bacterial and anti-microbial.

Cleaning crews circle the facility constantly.

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Jeff Radway, CEO of Green Peak Industries, speaks to reporters Feb. 13, 2019, in the locker room at the new $13 million headquarters building at Harvest Park in Windsor Township. (Jake May | MLive.com)

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Lights hang in one of 22 flower rooms Feb. 13, 2019, at the Green Peak Industries Headquarters at Harvest Park in Windsor Township. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants. (Jake May | MLive.com)

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One of 22 flower rooms at the Green Peak Industries Headquarters at Harvest Park in Windsor Township. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants per harvest. (Jake May | MLive.com)

The building has 22 flower rooms where marijuana plants sit for seven to 10 weeks, depending on the strain, under bright lights for 12 hours a day.

With the lights on nearly all the time, Green Peak will become the second-largest user of electricity of the Lansing Board of Water and Light, behind General Motors, Radway said.

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Shawn Hanrahan, director of production for Skymint, shows off the drying room Feb. 13, 2019, at the Green Peak Industries Headquarters at Harvest Park in Windsor Township. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants. (Jake May | MLive.com)

The headquarters facility is not yet up to full production.

Radway expects the first harvest in May.

The building is set up to handle all aspects of the business, from growing to harvesting to extracting oils and manufacturing infused products like wax, shatter and later edibles.

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Jeremiah Kromrei, grow manager for Skymint, displays a marijuana clone Feb. 13, 2019, at the Green Peak Industries research and development facility at 1669 Jolly Road in Lansing. (Amy Biolchini | MLive.com)

From the ground up

At capacity, the Green Peak headquarters will have 5,000 clone plants growing at a time -- which is necessary to keep the 15,000-plant-facility on its daily harvest schedule.

Right now, Green Peak is using clones to start each crop. In the future, they'll use tissue cultures.

Clones are cuttings from an older marijuana plant -- a "mother" -- that are forced to grow roots. The small branches are placed into a soil medium, and their leaves are trimmed to inspire roots to grow.

Technically, the clones aren't considered to be plants by state regulatory officials until they have enough roots.

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Days-old marijuana cuttings grow in the clone room at the Green Peak Industries Headquarters at Harvest Park in Windsor Township. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants. (Jake May | MLive.com)

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Employees work the soil before transplanting marijuana clones at the Green Peak Industries Headquarters at Harvest Park in Windsor Township. The $13 million facility is 50,000 square feet, and it will house up to 15,000. (Jake May | MLive.com)

After about two weeks, the clones are transplanted to larger pots and tagged with a unique bar code that's entered into the state tracking system -- and at that point they're considered plants.

The plants are fed a special blend of nutrients that's mixed in with the water through their irrigation system. Green Peak treats all of the water that it uses in the facility using a reverse-osmosis system.

They sit under LED lights for 18 hours a day, for about six to seven weeks depending on the strain, as they grow.

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Marijuana plants sit in one of five vegetation rooms at the Green Peak Industries Headquarters at Harvest Park in Windsor Township Feb. 13, 2019. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants per harvest. (Jake May | MLive.com)

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A first look on a tour of the Green Peak Industries Headquarters at Harvest Park in Windsor Township Feb. 13, 2019. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants. (Jake May | MLive.com)

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Shawn Hanrahan, director of production for Skymint, shows off the mother marijuana plants Feb. 13, 2019, at the Green Peak Industries Headquarters at Harvest Park in Windsor Township. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants. (Jake May | MLive.com)

Every inch of space in the five vegetation rooms at the headquarters plant is maximized. Plants grow in double-decker shelves that roll like large library stacks, with fans specially placed to circulate air around them.

In total, the facility will grow about 30 strains of marijuana for medical patients.

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Employees work to harvest marijuana plants Feb. 13, 2019, at Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Jake May | MLive.com)

After about six to seven weeks -- depending on the strain -- the plants are moved to flower rooms.

There the climate can be adjusted to be more or less humid, based on the plant's preference.

Every aspect from the watering schedule to pest management is tracked and guarded as a trade secret.

After seven to 10 weeks, it's time to harvest.

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Employees work to harvest marijuana plants Feb. 13, 2019, at Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Jake May | MLive.com)

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Employees work to harvest marijuana plants Feb. 13, 2019, at Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Jake May | MLive.com)

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Employees weigh a marijuana plant after it has been cut down for harvest Feb. 13, 2019, at Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Jake May | MLive.com)

Plants are cut down and individually weighed -- a measurement that has to be entered into the state's tracking system.

After they're weighed, the entire plant is hung upside-down on a 15-foot-tall metal screen in the drying room.

During the drying process, the plant is expected to lose 75 to 80 percent of its weight.

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A worker hangs freshly harvested marijuana plants in a drying room Feb. 13, 2019, at Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Amy Biolchini| MLive.com)

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Freshly harvested marijuana plants hang in a drying room Feb. 13, 2019, at Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Jake May | MLive.com)

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Employees use a machine to trim buds off of a dried marijuana plant Feb. 13, 2019, at the Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Amy Biolchini | MLive.com)

Once the plant has sufficiently dried, Green Peak uses a machine to remove the buds from the branch.

Automation has been built into every step of the process at the facility, with machines that are made specifically for the cannabis industry.

Once the buds are free from the branches, they get a manicure: extra leaves are trimmed off. Employees use both a machine and scissors to get the job done.

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Employees use a machine to trim leaves off of dried marijuana buds Feb. 13, 2019, at the Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Jake May | MLive.com)

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Employees use a machine to trim leaves off of medical marijuana buds at Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Jake May | MLive.com)

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Employees display a bag of marijuana trim Feb. 13, 2019, which will be used to make marijuana infused products, at Green Peak Industries Research and Development Facility, located at 1669 Jolly Road in Lansing. (Jake May | MLive.com)

The dried leaves trimmed off the buds aren't thrown away.

They're collected for extraction -- a process that results in a concentrated THC oil that can be used in vape cartridges, infused into edibles or further distilled into waxes and shatters.

Green Peak has an entire processing lab built into its headquarters for this part of the business.

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A closed loop butane propane hydrocarbon extraction unit, seen Feb. 13, 2019, that will be used to make marijuana infused products at the Green Peak Industries Headquarters at Harvest Park in Windsor Township. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants per harvest. (Jake May | MLive.com)

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An ethanol extraction device inside the marijuana-infused products lab at the Green Peak Industries Headquarters, seen Feb. 13, 2019, at Harvest Park in Windsor Township. The $13 million facility is 50,000 square feet, and it will house up to 15,000 plants per harvest. (Jake May | MLive.com)

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Jeff Radway, CEO of Green Peak Industries, stands in front of the company's headquarters on Harvest Park Drive on Tuesday, Dec. 11, 2018 in Windsor Township. (Kaiti Sullivan | MLive.com)

Plans to expand

The 50,000-square-foot headquarters facility is just the beginning for Green Peak Industries.

The company is vertically integrated -- which means they own and control every aspect of production from growing and harvesting the plants, to extracting oils and making cannabis-infused products, to selling medical products to patients at its own brand of retail stores, Skymint.

Though Radway just moved plants into the headquarters building two weeks ago, he's already planning to build another facility triple the size to meet the demands of the recreational market.

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Green Peak Industries' indoor medical marijuana grow facility, seen under construction in 2018, is located on Harvest Park Drive off of Creyts Road in Windsor Township, southwest of Lansing. (Courtesy | Green Peak Innovations)

Plans to expand

Radway also has an ownership stake in Harvest Park, the industrial park where the Green Peak headquarters building sits southwest of Lansing.

The industrial park is specifically for cannabis businesses. It straddles Creyts Road. For now Green Peak is the only occupant -- but the lots have been sold, according to company officials.

On the west side of Creyts Road, a solar park for the Lansing Board of Water and Light is planned. Next door will be a brand new 170,000-square-foot Green Peak facility, where Radway plans to grow for the coming adult-use marijuana market.

-- Amy Biolchini is the marijuana beat reporter for MLive. Contact her with questions, tips or comments at abiolch1@mlive.com. Read more from MLive about medical and recreational marijuana.

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Marijuana plants fill the flower room at the Research and Development Facility for Green Peak Industries on Jolly Road on Tuesday, Dec. 11, 2018 in Lansing. (Kaiti Sullivan | MLive.com)

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