Coronavirus Creates ChallengeIn March, COVID-19 struck, the state of New York closed everything, and Tivoli Mushrooms lost 90% of its business. “We kind of shut down for a minute,” Gilroy said. Almost immediately, Tivoli went from fruiting between 600 to 700 blocks per week in each grow room — three rooms are currently used for fruiting, with the other room used for incubation — to maybe 200 blocks. And given that Tivoli Mushrooms produces between 100 and 200 fruiting blocks each week in-house, then orders the rest of their spawn and substrate from Maine Cap N’ Stem, there were also a lot of prepaid blocks coming in without any clients to sell the mushrooms to. Which brings us to one of Gilroy’s biggest pieces of advice to anyone considering building their own urban mushroom farming business.
“Always have five months of operating capital, just at a minimum,” he says.
“Never go below it, because sh*t comes out of nowhere. Being a successful farm, moving product, making money, we still almost went out of business like three times with me not taking any money from it. The accounting part of it, besides the growing part of it, is a big one.”
They say it takes a village to raise a child. Well, it takes a community to support a business.
Tivoli Mushrooms survived COVID-19 with the help of the local community. Home food delivery companies also upped their orders and kept Tivoli afloat.
“It’s mother nature,” Gilroy said. “You have to just get on board and roll with it.”
Gilroy says he was grateful for his executive chef position and the income it provided at that time, but running an urban mushroom farm while holding down a second job can be both a blessing and a curse.
A Double-Edged SwordEach day, Gilroy gets to Tivoli at around 7 a.m., works until 2 p.m., and then heads to his executive chef job until 10 p.m. He has yet to pay himself a dime from Tivoli Mushrooms. The grind can be a lot to handle some days, he says. “How you do one thing is how you do all things,” Gilroy said. “So constantly rushing from thing to thing is not the most fulfilling. I think that aesthetically I probably should have gone slower and focused a little bit more on the layout, how it felt, inhabit the space longer, maybe meditate in the space a little bit more, really feel it,” he said of the expansion. “We’re in this place where it’s not that comfortable. That would be my biggest change so far.”
A Grower’s Notes
In our chat with Devon Gilroy, founder of Tivoli Mushrooms, we also got into the nitty-gritty details about how to run an urban mushroom farm that produces 2,000 pounds of mushrooms per week. Here are some nuggets from that discussion.
Gilroy keeps his rooms at around 88% relative humidity and, in an ideal situation, at 55°F (12.7°C). It was the peak of summer when we visited and his rooms were at 63°F (17.2°C).
“I’m a big fan of shocking the mushrooms”
Sometimes, Gilroy will go into a grow room and not see the kind of growth he wants. In that case, he’ll drop the humidity 5% to 10%, and then “things will go crazy.”
Or, he’ll run the relative humidity below the normal 88%, wait for his fruiting blocks to start pinning/maturing, then raise the humidity over 90%.
A Glance at Geothermal
Gilroy says he would love to have his farm at a cooler, more northern location so he could be more energy-efficient. If people want to grow in hot environments, he likes the idea of a geothermal design, where you dig a hollow reservoir, say, 15 feet (4.5 meters) underground, and then condition your air in that room before pumping it into your fruiting room. It’s an upfront cost that will, long-term, save you a lot of money on electricity and likely save you from a lot of routine air conditioner maintenance, repair, and replacement.
A Day in the Life
1. Always harvest right when you arrive to the farm.
2. Then look at what you have and what needs to be replaced.
3. Gilroy tries to sell everything the day it’s harvested. So then he focuses on selling.
4. Clean the fruiting rooms.
5. Take any blocks from incubation that are ready and put them into fruiting conditions.
6. Clean the lab, unload the bulk steam pasteurizer, and inoculate fruiting blocks.
7. Put those blocks into incubation.
*On days that they don’t do inoculations, they are making fruiting blocks, hydrating them, loading them into the pasteurizer, and turning on the pasteurizer. The pasteurizer is always either running or cooling.
8. Deliver your product.
Caveat: Tivoli does not produce all the fruiting blocks they use. Instead, they order hundreds of pre-made fruiting blocks from companies like Maine Cap N’ Stem on a weekly basis. Once delivered, these bags are simply placed into the incubation (if needed) or fruiting room, cut, and left to colonize and/or fruit.