On Friday I brewed up some tree beer using Leyland Cypress boughs in the strike and sparge water as well as in the mash vessel. OG was ~1.050 and I split the boil to brew up a saison and a pale ale with galaxy and sultana (denali) hops. The saison is fermenting with a wild yeast culture I captured from my neighbor's raw honey and the pale ale has Framgarden kveik. They're both fermenting at 87°F/30.5°C

The Leyland Cypress gives the beer a pleasant evergreen/christmas tree flavor that's a bit citrusy and not too overwhelming. I've brewed with this tree a number of times and thoroughly researched it so I'm fully confident that it is not toxic. I don't measure the amount of tree I put in the beer, basically just put branches into the kettle until it's annoying to try to add another one.