Hifa’s design assures optimal darkness and humidity conditions for mycelium proliferation as well as an excellent infusion vessel for brewing coffee based on the French press coffee maker principles. Its double-walled vessel body reduces heat dissipation, keeping coffee hot longer. At the same time, coffee grounds are stocked inside the lower compartments ready to be inoculated and when mycelium spreads through the coffee grounds its time to sprinkle some water, wait a couple of days and reap some excellent quality mushrooms!