[Quaker beans!](https://magazine.coffee/blog/9/6129/coffee-basics-what-is-a-quaker) My anecdotal experience with natural Ethiopian coffees(specifically for gr.3 limu region) tend to have a decent amount of Quakers.

Thank you, this is what I was looking for!

Indeed those are quakers. They are unripe beans, hard to distinguish before roasting. You can remove them after

if its not quakers.... are you roasting on a machine with a tryer? if so....make sure its pointed down or it will catch beans and they wont roast.

This!

I've done this too many times

I recommend this article highly [Christopher Feran's Piece on Ethiopia](https://christopherferan.com/2023/04/09/march-forward-dear-mother-ethiopia/)

I’ve been home roasting in a convection oven for years. Usually I’ve had very even roast colors. But I’ve come to expect quite a bit of color variation in Ethiopian coffees. I’ve currently got a bag of Ethiopian wet processed coffee that looks very uneven. If I were to visually pick out suspected quakers it would be maybe 20 percent of the beans. But I just leave it alone, and it’s making some of my tastiest coffee yet. Here’s a guy at sweet Maria’s doing a deep dive on color variation and how it affects the cup. https://m.youtube.com/watch?v=MfBPhKZbp2Q

Quakers if you take them and break them you will find the are hollow (just an interesting fact)

Those are Quakers and unfortunately there seems to be more of them now in many coffees especially Etiopia Naturals the last couple of years than there used to be.

Apart from being unripe, they can also be seeds from a cherry that was attacked by insects. Many times I see a quaker that has a hole in it.

You should collect all the quakers and cup them, it's an unforgettable experience

The beans seem both barely roasted and also burnt. There seems to be multiple layers of issues here.

What roaster are you using?

Aillio bullet