dTest left in the laboratory to examine always two kinds of capsules from each brand. One contained 100% Arabica, the second blend of Arabica and Robusta. Test verifying sensory properties of coffee, caffeine content, antioxidant activity, and whether the capsules contain undesirable substances. Using coffee in capsules made of plastic or aluminum has its advantages and disadvantages.
"The advantage is time-consuming preparation, minimal maintenance devices, longer shelf life in sealed cups of coffee a relatively low purchase price of the machine. The disadvantages are mainly higher price for a cup of coffee. For one capsule pay from 8 to 11.40 crowns, while coffee from 100% Arabica ground of FRENCHPRESS, pots, moka pots or as "Turk" will be released up to four times cheaper, "says Daniel Pavlis, chief editor Dtest. Another downside is that some devices allow only "their" capsules and higher environmental burden. The market is already well refillable capsule into which you can insert coffee according to your tastes.
Covers some capsules do not indicate whether they contain 100% Arabica or a mix of Arabica and Robusta, which makes it difficult for consumer choice. Arabica is more valued, is more subtle and almost twice more expensive than robusta. Robusta has, however, compared to Arabica twice as much caffeine. If the capsule contains both coffee varieties, manufacturers usually only informed that it is a mixture, do not specify the exact ratio.
International Society for coffee (ICO) states that the caffeine content of 100% Arabica is 0.8 to 1.4%, in ROBUS 1.7 to 4%. These are typical values for green coffee, roasted may vary. "Most of the tested caffeine capsules contained Cremesso Espresso coffee (mix, 2.34%), Tassimo Carte Noire least Intense Long (100% Arabica, 1.08%). Each capsule but contains different amounts of coffee, which affects the caffeine content in the final cup of coffee, "says Daniel Pavlis. The maximum recommended daily dose of caffeine for an adult (400 mg), we were able to bring drinking 3-5 cups of coffee from capsules - depending on the content of caffeine and efficiency of leaching.
During roasting coffee obtains intense aroma and formed therein various desired substances, such as antioxidants. However, they may also arise harmful substances with carcinogenic effects, namely acrylamide and furan. "Laboratory examined their levels in the tested capsules and also focused on toxic metabolic products of fungi. The good news is that none of the products tested were recorded extremely high levels of these substances should be approached or set limits is exceeded, "says Pavlis.
In sensory evaluation examined the properties of coffee crema on the surface of the coffee, the individual components and their flavor balance, further roasting and odor intensity. Most evaluators liked containing a mixture of coffee Arabica and Robusta Nespresso Roma and Nescafé Dolce Gusto Espresso Intenso, which became the overall winner of the test. Good marks for the sensor system received 8 coffees from 12th
On the final taste of the coffee capsules are influenced by other factors, such as the device in which the drink is prepared and the correct preparation technology. Gustatory experience, however, influence and personal habits. It is therefore appropriate to introduce before buying a coffee machine with a complete range of compatible capsules and the best coffee of them even taste.
Source: tz dTest.cz