Vacuum sealed experiment update- sample #1, #2

I have been curious about green coffee stored in vacuum sealed bags and stored in ziploc bags. I have set aside several batches of green coffee over the last year, Vacuum sealed experiment, and will be tasting them over the following months. Yesterday was the first series of tastings.

• Coffees- 2 (Guatemala Florencia and Aqua Tibia 2008)
• Tastings- 2 rounds, blind
• Cups- 5 cups ber batch
• Roast- sample (light- after first crack)

Summary

Coffee stored in vacuum sealed bags had slightly better aroma in the green beans and roasted, ones that were stored in ziploc bags had a milder aroma. No difference in color of green beans. The main variable was that each roasted had some variations in flavor. When there are 5 cups, a few batches had a cup that was very sweet or bit winy so these lowered the score a bit. The coffees that were stored in ziploc bags had loss some acidity and sweetness, while the ones in vacuum sealed bags retained this quality better. There was not that large of a difference between sealed bags. I have 4 sample sets to test over the next two months.

Guatemala La Florencia ( purchased 5/08, cupped 4/09)

• Vac sealed bag: with defects sorted out
• Vac sealed
• Ziploc
  

Guatemala Fraijanes- Aqua Tibia (purhcased 5/08, cupped 4/09)

• Vac sealed
• Ziploc