I'm roasting every day bro - Black and White Photo Challenge Day 5

I was very Kindly nominated for this challenge by @thethreehugs , this is day 5 and I'm going to ignore the no explanation rule as usual. It's been a busy week clearing all my orders before the Christmas break, roasting coffee day in and day out it's been

Green in, brown out - seems easy right? But like baking a cake timing and temperature is essential - too quick and we don't develop the flavours of the coffee - too slow and it bakes developing unwanted flavours and loosing the best. So it's a delicate balance.

So when I roast it is all about getting the roast to work right, when I drop the coffee in to roast it reduces the temperature of the drum - to counteract this I have the gas flame high giving more heat and the airflow out of the drum closed down - the aim being to reduce the turn around temperature - this is how low the drum drops to before the coffee stops cooling the drum and starts getting hot instead. When I reach turn around, so the drum starts heating up again - I reduce the flame and start to open the air flow. This will stretch out the roast - a high flame all the way through would roast the coffee too quickly and it would not develop the flavours - depending on the coffee load and also the origin of coffee will dictate the flame height to give - every coffee origin needs a different flame height and lower weight of coffee (it's a 5kg roaster so that is the normal load) will need less flame to roast. While I log all the data to make it repeatable, the more you roast the more you just "feel" what you are doing with each origin - it's why people say that it can take ten's of years to learn to roast coffee well.

The Challenge:

7 black & white images that represent an aspect of your life.
Present one image every day for 7 days.
No people.
No explanation.
Nominate someone every day. Although anyone can join in.
Use the tag #sevendaybnwchallenge as one of your five tags.

Today I nominate @mokh-tar who consistently works hard at his blog posts and I am sure is more then capable of handling this challenge.

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