Ideal temp of inlet air and humidity, green beans

Roasting on the Bullet R1
1

What are the ideal ambient temperature and humidity, the inlet air, for roasting? The R2 Pro requires 240V, so it’s located in the garage. Central Oregon experiences cold and humid weather, with garage temperatures ranging from low to mid-40 degrees Fahrenheit and humidity levels of around 50%. Additionally, the green beans are stored in the garage.
What is the ideal temperature for roasting green beans?

2

I checked the R2 Pro manual and found this for temps:

Max. Recommended Ambient Temperature: 10-30°C

that’s 32 - 86 Freedom Units. Inside that you should be fine, though you’ll see a longer pre-heat time for cold temps.

I’ve taken to storing my greens inside and taking them out to the garage to roast to give them better thermal stability for more graceful aging and to have the beans warm when I drop them to start roasting.

I can’t answer the Ideal roasting temp and humidity question, I just deal with what I’ve got with my R1.

3

Thank you all info is appreciated :sunglasses:

4

I had to move my greens from a cardboard box to a plastic crate because my Chiweenie was chewing on the box and almost broke through to the coffee.

5

:rofl:

6

10C is about 50F.

7

thank you for the information :+1:

8

It’s sort of a very dry joke. I think we all can Google that, but he was making fun of Fahrenheit and the USA while also getting the conversion wrong. But sorry if it seemed like I was actually correcting him, rather than poking fun. I should have added an emoji? The other user was being helpful and I jumped in with a weird sense of humour.

9

its cool, my before days are from the winemaking world, I am used to the conversions. I should probably footnote that in my posts, so everyone can use whatever units suites them without converting them. I use both all the time, wish everything was metric, but I get it. I tend to use metric for mass and Fahrenheit for temp.

10

Same, I grew up internationally, but roasted professionally in the USA, so I do both too. And I am pretty sloppy about my conversions in casual conversation all the time.

I like Fahrenheit for roasting and brewing. Roasting doesn’t really care about the water boiling and freezing point, so I don’t get easier math or more simplified targets from Celsius.

In brewing, I don’t brew at boiling temp, so 93.33C is more annoying than 200F. 200+ for lighter roasts and <200 for medium and ~190F for darker so in a weird way, the math maths better in Fahrenheit sometimes.

But in general, I prefer metric.

11

on point :+1:

1 Like