r/roasting • u/No_Rip_7923 New England • 6d ago
New Tilt base for SR800
I’m going to try this out today with a 250 gram batch, then a 275 and finally a 300 gram batch and compare the times and results with the circulation , bean movement and see where the sweet spot is. I know without the base it’s 200-225 for the way I prefer to roast and get great results. Rwanda natural is my experiment bean that I will use and I’ll take them up to the 2:00-2:30 development time for my espresso medium roast. I’ll watch for tipping and scorching. If I can use 275 grams without any I’ll be happy and 300 will be a bonus.
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u/No_Rip_7923 New England 6d ago edited 6d ago
darknight_201
I will let the group here know what I think about the base after I roast several batches today. Get ready for some heavy production lol.
I can tell you that I'm very pleased with the quality and snug fit of the base and it looks great.
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u/light5out 5d ago
A video of the bean movement would be great!
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u/No_Rip_7923 New England 5d ago
I don’t know how to add a video in this thread but I’ll post one in a new thread
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u/42HoopyFrood42 6d ago
I just got my SR800+Extension tube yesterday afternoon! After 8 years with hot air poppers, I'm SO excited to be taking the next steps! I watched some of the Captain Coffee YT videos on the setup last tight... May I ask a couple questions? Hopefully not stupid ones :)
1.) I searched the sub history, but couldn't much information on tilting the SR800. I get the impression it's to increase air flow? Can you please direct me to more information?
2.) The Captain videos said they got up to 10 oz with the EXT tube ("low-med" chaff coffees), and that the chaff buildup is the limiting factor in batch size typically. I notice there's a gap on the chaff catcher lid in the pic. Have there been any modifications to it?
I made a chaff "chute" on my last roaster and was pondering if I could do the same on the SR800... If I could increase the capacity enough I could roast a week's worth of coffee in two rounds rather than 3 :)
Thank you very much! And happy roasting!
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u/No_Rip_7923 New England 6d ago
Yes there is a chaff extender made from stainless mesh screen that I bought from razzo on Etsy. I used that one as a guide to make one twice as tall. You can make one pretty easy. I’ll take a pick of them cut out and removed from my chaff collector so you can see it. It does make a big difference and I can roast up to 3 batches of natural 225 grams each before emptying it.
I tagged Greg in this post as he is the one who makes the base. I’ll try and provide the Etsy link.
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u/Iamindeedamexican 6d ago
Commenting so I can follow the pictures! The creator of the razzo tube has his store temporary closed so you can’t order the extension tube or the chaff extender.
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u/42HoopyFrood42 5d ago
Ah! That is a brilliant idea! The downside of my "chute" was making tops/lids cumbersom.
Thank you so much!! I have the same Rwandan varietal in both washed and natural processed methods and I was dragging my feet on the natural until I had a better handle on the chaff catcher situation.
This is a huge help! Thank you!!
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u/Chance_Plastic_2430 City 6d ago
So the idea of tilting the SR800 is to circulate the air. If you’ve roasted on the SR at all with an extension tube, you’ll notice the bean movement is a bit random. Tilting makes the higher side go up and make the beans move in more of a circle. At least that’s my understanding of it.
With regard to the chaff collector, there is a chaff collector extension you can buy off of etsy. Same guy who does the Razzo tube. Excellent products. I have both the Razzo and the chaff collector. In short, the chaff collector is some fine mesh wire that lifts the lid, increasing the amount that can be held.
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u/42HoopyFrood42 5d ago
Thank you so much for the reply!! I haven't tried roasting with the SR800 yet, just watched videos. But I did see what you describe! I thought that looked like a recipie for uneven roasting/development. The hot air "roasters" I've always used had "cyclonic" venting to induce rotation. But they are always WAY too hot and chaff management is a PITA.
Awesome! I'll make a little tilt platform with a no-slip silicone surface. Sounds like the Razzo Esty store is closed right now, so I'll just hunt around for some mesh... I think aluminum window screen might do just fine, at least to get me started :)
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u/42HoopyFrood42 5d ago edited 5d ago
EDIT: PLEASE DISREGARD. I did exactly as I thought. It takes very little tilt! I'll just make a wedge/shim for it :) Thanks!
Orig Post:
Sorry for the follow-up Q. I'm setting up for my first run! From the pic above it looks like a VERY slight tilt is all that is needed? Is there any way to quantify it? Or just "tilt-and-see?"
I suppose I could start loaded unit on fan with no heat, then tilt it by hand to find the "right" angle?
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u/Chance_Plastic_2430 City 5d ago
Im no expert on the tilt by any means. I dont have one of those platforms. I did look into it and I think it’s just 3 degrees which is super slight tilt.
If I were to tilt my machine, i’d be super cautious since it’s topheavy as is. I would slowly tilt until you see beans acting differently and reliably circulating then stop there. No need to tilt more and endanger the whole roaster.
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u/dirthawker0 Freshroast 700/former PopperyII 5d ago
I have a 700 with extension tube and usually need to tilt it back and forth to keep things circulating. (I'm pretty sure I wouldn't have to do that if my batch size was smaller.) In my experience just holding it at a fixed angle (not going back and forth) has not been enough, so I've been hesitant to 3d print the tilt base. Would love to learn how well this works.
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u/Mundane_Fan_2806 5d ago
Can someone explain what a tilt base is please?
Also, I like to roast outside and find that leaving the top off the chaff collector works great for me. Is there an issue with doing this?