Luca ET-Increase Profile

This community profile was shared with attribution to Luca; denis6004 explicitly noted that the profile was not his own and that credit should go to Luca. source

Profile Concept

The profile is described as an ET-increase profile. According to denis6004, because it is based on increasing environmental temperature, it is intended to be broadly usable, and he claimed that the beans used have no impact on applying the profile. source

Expected First Crack

The profile normally reaches first crack at approximately 226–230°C ET, around 5 minutes 30 seconds. source

Development Time Guidance

The recommended development time is very short: about 28–34 seconds. denis6004 advised not developing beyond that range, saying that a 40-second development made the coffee lose acidity and taste “dead.” source

Despite the short 28–32 second development window, denis6004 reported that weight loss is still high and the beans are “really developed,” so users should not be afraid of the short development time. source