Process
Thermal Shock
Thermal shock processing — popularized by 2015 World Barista Champion Sasa Sestic's team — rinses or immerses cherries or parchment in hot (and often then cold) water at defined points during processing, aiming to shape fermentation and aromatics. It is a step inside a process, not a full processing category.
General coffee-processing knowledge, sourced below. Panama-specific claims are separated into their own section.
Characteristics
Controlled, expressive, intense
Typical production steps
1) Process cherries conventionally to a chosen stage; 2) apply a hot-water 'shock' (sometimes followed by cold) for a controlled time; 3) continue fermentation or drying, sometimes with the shock repeated and anaerobic tank rests between rounds. Precise protocols are proprietary and vary by producer.
What the label does and doesn't establish
The label says a thermal step occurred; it does not standardize anything else. Notably, the Specialty Coffee Association of Panama — the body behind Best of Panama — publicly called 'co-fermented' and 'thermal shock' labels 'deceptive' and said they are used 'to mislead buyers' in a 2024 statement after disqualifying infused entries from that year's competition (reported by Sprudge).
Attributed sensory descriptions
No attributed Panama profile exists in this database; generic industry descriptions (e.g., 'clean, ideal qualities' comparisons by hobbyist references like Robert Asami's process list) are not Panama evidence.
Seller-attributed cupping language — a processing label never guarantees a flavor.
Documented use in Panama
No verified Panama producer offers a thermal-shock-labeled coffee in our database. The term's documented Panama footprint is regulatory — SCAP's 2024 statement criticizing the label.
Sources
Facts reviewed 2026-10-01← All processes