Live data from Hacker News

A brief history of instant coffee

worksinprogress.co

1–10 of 63 posts

Re: A brief history of instant coffee

#2
Thanks for posting this!

I started using instant coffee in hot chocolate as a quick DIY mocha, mainly because the cost-caffeine ratio was sooooo much better than beans (ground or whole) and the mix of ingredients that doesn't trigger any reflux (unlike the 400 mg / serving powdered energy drink I had been guzzling).

Which is to say - this is a fun and interesting article about something I had just been taking for granted. It's really neat to learn about the trials and tribulations that folks went through to figure it out.

Thanks for posting it! :)

Re: A brief history of instant coffee

#4
post #3

it's never instant because boiling water takes sooooo longgggg. apparently uk teakettles are faster due to voltage differences? i want to look for a usb-c solution sometime

U. K. 240v vs. 120v in the U. S., twice the voltage == twice the amperage (EDIT: oops, wattage, for the same amps) == half the time to boiling. I will note that doubling the voltage will still not make it "instant". For that I think you need liquid oxygen[0].

[0] https://improbable.com/2018/10/26/a-look-back-at-george-gobl...

Re: A brief history of instant coffee

#6
post #3

it's never instant because boiling water takes sooooo longgggg. apparently uk teakettles are faster due to voltage differences? i want to look for a usb-c solution sometime

In electric kettles or a microwave or even in a moka pot or another small container on a decent induction stove it's just 2-3 minutes. There was a video I can't find where they increased the voltage or something for a kettle and at one point it boiled the water in like 10-15 seconds.

Re: A brief history of instant coffee

#7
post #6
post #3

it's never instant because boiling water takes sooooo longgggg. apparently uk teakettles are faster due to voltage differences? i want to look for a usb-c solution sometime

In electric kettles or a microwave or even in a moka pot or another small container on a decent induction stove it's just 2-3 minutes. There was a video I can't find where they increased the voltage or something for a kettle and at one point it boiled the water in like 10-15 seconds.

Technology Connections?

https://youtu.be/INZybkX8tLI

Re: A brief history of instant coffee

#8
post #3

it's never instant because boiling water takes sooooo longgggg. apparently uk teakettles are faster due to voltage differences? i want to look for a usb-c solution sometime

Of all the things I have cooked on my induction cooktops over the years, boiling water fast is what I miss when I travel and have to use electric coils.

Re: A brief history of instant coffee

#9
post #4
post #3

it's never instant because boiling water takes sooooo longgggg. apparently uk teakettles are faster due to voltage differences? i want to look for a usb-c solution sometime

U. K. 240v vs. 120v in the U. S., twice the voltage == twice the amperage (EDIT: oops, wattage, for the same amps) == half the time to boiling. I will note that doubling the voltage will still not make it "instant". For that I think you need liquid oxygen[0]. [0] https://improbable.com/2018/10/26/a-look-back-at-george-gobl...

Twice the voltage == half the amperage for the same wattage. Are UK kettles higher wattage?

Re: A brief history of instant coffee

#10
post #3

it's never instant because boiling water takes sooooo longgggg. apparently uk teakettles are faster due to voltage differences? i want to look for a usb-c solution sometime

The good news is that boiling water is not functionally necessary since the extraction was done up front. I drink it cold or with warm water. Boiling is hotter than I want to drink anyway.

If there's significant scale at the bottom it's possible it's making your kettle materially less efficient. If you put in like a cup of vinegar and a cup of water (you could probably dilute it more than that), heat it up and swish it around (it doesn't need to be boiling), it should all come off.

Post reply on HN