Nucleus Coffee Tools

Founded by 2015 World Barista Champion Saša Šestić, Nucleus builds tools for one thing only: better flavour in the cup. 

The Paragon system uses extract chilling to lock in volatile aromatics that usually disappear as your coffee cools. Expect more clarity, longer sweetness, and brighter, candy-like acidity from expressive naturals and experimental lots — and juicier, more layered cups from elegant washed Geshas. The Extra Chilling Rocks and Paragon Espresso kit let you take the same idea into both filter and espresso.

The Nucleus LINK is a compact, precision coffee roaster made for serious tasters. It’s built for consistent, repeatable profiles — from dialing in competition roasts to exploring how different processing methods and origins behave in the roaster.

If you want a clear, measurable jump in cup quality—not just a new toy—start here.