![]() pdf file (which I have lost) from Chemical Technology and Consulting explains that the calcium in hard water binds with the fatty acids that are released from the coffee during brewing (see transcription below). pdf file explains the reaction of hard water and coffee. From your email, it appears that the oily film is caused by the hardness of the water. "The Division of Water Supply has received your email regarding an oily substance that appears in your coffee and tea. I recently posed the oily coffee question to the Tennessee Division of Water Supply and received the following explanation I thought you might find interesting: The unused coffee could absorb food odors and condensation, altering the flavor of your coffee. Coffee should be stored in an airtight container that’s not see-through.ĥ) Do not store unused coffee in the refrigerator or freezer. If you plan on holding onto your coffee for more than 20 minutes, use an insulated mug or tumbler to avoid reheating.Ĥ) Store unused coffee in a cool, dry place at room temperature. Leaving it on the burner for too long will change the flavor and aroma attributes. Also, washing your brewer monthly with a white vinegar solution will help to keep it clean.ģ) Never let your coffee sit on the burner for more than 20 minutes. Cold tap water is perfect, doesn’t have to be fancy. Also make sure to use fresh, cold water for brewing. You want to make sure that there isn’t any coffee residue. of waterĢ) Clean your coffee brewer and carafe. Finely ground coffee yields a stronger flavor, while a course grind will yield a weaker flavor. If you're using whole beans, grind your coffee just before brewing. Once the package is opened, ground coffee will remain fresh for about 7 days, while whole bean coffee will remain fresh for up to 20 days. Dunkin’ also boasts that its coffee comes from "100% Arabica beans from Central and South America."ġ) Use only the freshest coffee possible. If you want your coffee to taste a lot like the in store Dunkin shop cup, buy the beans at Dunkin and grind your own. Perhaps ordering it from the Dunkin Donuts website is possible. The reason is: it is not the same beans or brand that they serve in Dunkin Donuts and if you want it to be the same, you have to buy it from the restaurant directly and not from a retail or grocery chain. And the wonderful thing about the internet is that you don't have to do that, you can just do the research real quick (in another internet tab, even) and then answer the question, it is not like you're put on the spot.Īnyway, to close my petty little comment, I thought I'd reiterate why it doesn't taste the same. They would rather make something up on the spot than to tell someone that they don't know, they're going to have to research it and come back to them. And honestly I just can't stand people who cannot admit that they don't know something. I'm sorry, but this was just too lazy and pretentious not to comment on. And this "coffee detective" honest to God just sat there and made up a whole psychoanalytical unbased theory in their head, and did not bother to actually research or answer the question with factual, evidence-supported information which was as readily available to them as it was to the people in the comments who are responding with the correct answer. They are looking for an accurate answer, not a guess. People are asking a legit question as to why their coffee at home does not taste like the coffee at Dunkin Donuts, even though that is the brand they bought. So I don't think you would have a problem with the brewing process itself.Ĭomments for Why doesn't Dunkin Donut coffee taste the same at home? Or, it's possible that the coffee they use in their stores is not exactly the same as the coffee they sell in their cans.Īs for your coffee maker, a French press is an excellent way to make coffee. By the time you get that can of ground coffee home, it's probably quite a bit older, and a little staler, than the coffee used in the store. The second reason may be that the coffee beans being used in the store are almost certainly fresher. But I bet it tastes better in a Starbucks store. You can buy their coffee too, and make it at home. It's probably the same deal at Starbucks. The environment of coffee-making, donuts and people likely combine to make the coffee taste a little bit better. There's something about the strong aroma of fresh-brewed coffee that just permeates the whole place. In part, perhaps it is the influence of the aroma and atmosphere in a coffee shop. Interesting question! I think there may be two reasons. I bought the grinds at the same location as I buy the coffee in a cup. Why does store-bought coffee smell and taste better at their location than at my home? I use a French press coffee maker.
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