01
Choose your coffee
A single origin or our roaster’s pick, whole bean or ground for your brewer, every 2 or 4 weeks.
The roastery
Twelve kilos at a time, by hand, in Lviv.
Zerno started in 2019 in a former print shop on Zelena Street with a second-hand drum roaster and one stubborn idea: buy from farmers we know, roast for people we know. We still cup every single batch before it ships.
2roast days
per week
per week
12kgper batch,
never more
never more
48hfrom roast
to dispatch
to dispatch
14partner farms
in 6 countries
in 6 countries
Roast profile · Batch #1184
Ethiopia Hambela, 3 Nov 2026
Bean tempRate of rise
Drop temp208 °C
Development17.5%
Total time10:30
Cupping score87.25
Roast day on Zelena St“We’d rather roast twelve kilos perfectly than a hundred kilos well.”