How Temperature Affects Coffee Flavor and Aroma
Author Information
Author(s): Gantner Magdalena, Kostyra Eliza, Górska-Horczyczak Elżbieta, Piotrowska Anna
Primary Institution: Warsaw University of Life Sciences
Hypothesis
Does storage temperature influence the volatile compound profile and sensory characteristics of coffee?
Conclusion
Storing coffee at a lower temperature preserves its aroma and flavor better than higher temperatures.
Supporting Evidence
- Lower storage temperatures slow changes in volatile compounds.
- Higher temperatures lead to more earthy and smoky notes in coffee.
- Espresso has a stronger aroma compared to cold brew coffee.
- Arabica coffee has a milder aroma than Robusta.
- Cold brew coffee is perceived as sweeter and fruitier than espresso.
- Storage conditions significantly affect the sensory quality of coffee.
- Changes in volatile profiles were significant after one month of storage.
- Brewing method impacts the sensory characteristics of coffee.
Takeaway
Keeping coffee in the fridge helps it taste better for longer, while warm storage makes it taste worse.
Methodology
The study analyzed three types of coffee stored at different temperatures for one month, assessing changes in volatile compounds and sensory quality using electronic nose and sensory evaluation methods.
Potential Biases
Potential bias in sensory evaluation due to panelist subjectivity.
Limitations
The study did not explore all possible coffee types or storage conditions.
Participant Demographics
Sensory evaluation conducted by trained panelists.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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