Unanswered Questions

61 questions with no upvoted or accepted answers
18
votes
0answers
1k views

Research funding for health benefits by coffee trade associations

How much funding is provided by the coffee industry for research on the health benefits of coffee? I came across a statistic that surprised me by its meagerness. According to their website, the ...
7
votes
0answers
124 views

Empirical data on reuse of grounds, by flow and filter

We wanted to know are there quality empirically generated chemical composition tables examining the relationship between filter porosity, flow by volume per time, and grounds of different varieties?
5
votes
0answers
46 views

Does hydration level change the effect of caffeine?

Apologies if this question does not belong here, it may be suit for the chemistry site, but it pertains to the consumption of coffee directly -> so here it is. Does your prior level of hydration ...
5
votes
0answers
77 views

How can I test or repair my Keurig k45 heating component?

My k-cup coffee maker has stopped making coffee. It's a Keurig K45. It will take water, activate the pump, then it will just stay on the step with the red heating light on. I've let it sit for 15 ...
4
votes
1answer
51 views

What measurement should I take to buy an atmospheric filter for my espresso machine?

I want to buy an atmospheric filter for my espresso machine, but I don't know what part of the filter I should measure. Should I be measuring the radius from the internal part of the border of the ...
3
votes
0answers
50 views

What is the process for roasting and preparing chicory for coffee?

It seems to me that Community Coffee is essentially the standard for chicory coffee, both blended and just straight brewed chicory. What are the recipes, steps and ratios for roasting, preparing and ...
3
votes
0answers
45 views

Caffeine content of different brewing methods

For a given type of bean, do different brewing processes and temperatures (drip, French press, Mocha, espresso, cold brew, etc.) produce coffee with different caffeine content? It would seem ...
3
votes
1answer
40 views

Chemex Setting for Bay Area Costco Grinder Machines

I recently bought Peet’s ground coffee at Costco for the first time. It's too fine for Chemex (although usable) so next time I plan to buy whole beans and grind them at the store (sorry, coffee ...
3
votes
0answers
55 views

What are these mystery numbers on the Nescafe disposable coffee sachets?

I noticed the numbers 1-9 (did not see any with double digits) on these nescafe sachets. Anyone know what they are for?
3
votes
0answers
33 views

Requirements for Nel Drip Coffee

I have a question about Nel Drip coffee requirements. Recently I've been checking few blogs and articles about this type of brewing, it mostly leads to these "settings": - Old coffee beans - Coarse ...
3
votes
0answers
26 views

Intermittent Bottomless Filter Spray — Any Suggestions?

I have a Rancilio Silvia and a Breville Conical Burr Grinder. We roast our own beans using a Behmor 1600, and typically do kinda light roasts. Very often, regardless of the bean, roast, packing ...
3
votes
0answers
106 views

about the most expensive coffee

is there anyone who has an idea about Kopi luwak like ? how it tests and what makes it different from others.do we use the same coffee making procedure for it tooo?
3
votes
0answers
548 views

Messy grounds inside of DeLonghi ESAM 2600

I've got a DeLonghi bean-to-cup machine (ESAM 2600), which I find decent in overall. But there is one very annoying issue: not all of the grounds make it from the basket into the internal waste bin. ...
3
votes
0answers
86 views

What steam wand to replace my Gaggia Carezza old machine?

I have an old model of Gaggie Carezza that can be found here. The steam wand needs to be replaced. Does anyone know which one is suitable? I have been looking at this Rancilio Silvia steam wand but ...
2
votes
0answers
21 views

Frothing issues in coffee machines

I have an expresso machine of Morphy Richards, which I have been using for quite some time. The problem which I encounter is that the froth formed from its nozzle doesn’t stay for long, like it stays ...

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