One Ounce For Onion in Bangkok's Ekkamai is the hidden-courtyard cafe with rotating Thai and international roasters on the bar, opened 2015 in a converted house.
Tip: The filter menu changes every couple of weeks; ask the barista what just arrived. Weekend brunch from 09:00.
Address: 37 Soi Ekkamai 12, Khlong Tan Nuea, Watthana, Bangkok 10110
Rocket Coffeebar in Bangkok's Sathorn is the Scandinavian-design coffee-and-brunch room from 2014, with a sister branch on Soi Methiniwet and Asok. Sourdough pastries on-site.
Signature drink: Cortado and espresso tonic
Tip: All-day brunch menu but mornings are the calmest window. The espresso tonic and the avocado on toast are the canonical orders.
Ink and Lion Cafe in Bangkok's Ekkamai 2 is a designer-led siphon and slow-bar coffee room with bookshelves and copy of original Penguin Modern Classics around the room.
Signature drink: Slow-bar siphon coffee
Tip: No laptops by house rule. The siphon brew is the slow-bar order; pair with a cardamom bun from the counter.
Luka Cafe in Bangkok's Pan Road is the all-day cafe-bistro from chef Mark Carter, with house-roasted coffee, brunch all afternoon, and a small-plate evening menu.
Signature drink: Specialty espresso and salt-bomb pastries
Tip: Weekend brunch books out; weekday afternoons are the calmest window for the work-friendly tables in the back room.
Factory Coffee in Bangkok's Phaya Thai is a competition barista cafe from World Brewers Cup competitor Sarisa Kanakam, espresso flights and a custom Probat roaster.
Signature drink: Single-origin espresso and brewed flight
Tip: The flight option lines up espresso, milk and brewed coffee from the same bean. BTS Phaya Thai is two minutes away.
Brave Roasters in Bangkok's Ari is Aroon Boonchom's third-wave coffee cafe with a small roaster on-site, the canonical morning stop for Ari neighbourhood regulars.
Signature drink: Pour-over with Thai-roasted beans
Tip: The pour-over menu lists every single origin individually. Weekend mornings the queue forms by 09:00.
Pacamara in Bangkok's Sukhumvit 49 is a Thai specialty roaster brand on its own counter, with the Champion Of Champions barista program turning out its bean menu.
Signature drink: Single-origin pour-over and espresso
Tip: The Geisha lot is the splurge; the Thai Doi Chaang single origin is the local pick. Espresso and filter both available on the day's bar.
