Unanswered Questions

82 questions with no upvoted or accepted answers
18 votes
0 answers
2k 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 ...
6 votes
1 answer
133 views

Slow Roasting Coffee Beans

Conventional Coffee bean roasts at around 200-240C at around 11-19mins to ensure Maillard reaction in the beans to create the familiar taste of coffee we all know today. Could we instead roast the ...
6 votes
0 answers
137 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?
6 votes
1 answer
74 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 ...
4 votes
0 answers
38 views

Does anyone know the history of the “washed process?”

Where did the washed process originate and how has it developed and progressed? And what are the different forms and variations it has taken over the years? I have a hunch that it began in Ethiopia ...
4 votes
0 answers
92 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 ...
3 votes
0 answers
48 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
0 answers
41 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
0 answers
828 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
0 answers
121 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 ...
3 votes
1 answer
97 views

Least Expensive Way to Make Decent Espresso-based Milk Drinks?

I want to know the cheapest machines to make decent espresso for my situation. Needs: I need steam for milk drinks I need the proper brewing pressure I need to use fresh ground coffee, no pods ...
2 votes
0 answers
39 views

Is 270ml of coffee in a 6-cup Bialetti Moka attainable with the correct grind size?

I have just bought a 6-cup Bialetti Moka Express, and the user manual quotes its 300 ml reservoir should result in 270 ml of coffee. However, I have conducted some tests, and unless the grind size is ...
2 votes
1 answer
41 views

Decipher Lavazza roast/batch code

Can anyone help deciphering Lavazza coffee roasting / batch codes on ground coffee? The bag on the left was great. The one on the right is bad enough I will return the several I bought. Both were ...
2 votes
0 answers
33 views

What happens if I use relatively short burrs (55mm) to grind lightly roasted coffee as opposed to longer (65mm+) ones?

I am making the first steps towards drinking a decent/good coffee at home (where I also work). My shortlist was composed of Lelit-PL72, MACAP M42M, EUREKA MIGNON SPECIALITA 16CR, and Eureka Mignon XL ...
2 votes
0 answers
38 views

What Coffee to use for Cuban-inspired coffee?

I have been drinking Cafe Bustelo espresso for over 20 years. What are some similar (flavor, boldness, caffeine, strength, & consistency) but better espresso options I can try? This is the exact ...

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