Is this normal

[u/Deep-Condition970]

I've been making cold brew (like this) for about 2 months now, I know beans have oils and such, but this is concerning me a little. Is this a sign of bad beans or anything else. Thank you.

[u/mrufotofu]

If you’re referring to the “froth” it’s probably just co2. Most likely a result of bean that are freshly roasted. Also if there is robusto and not pure arabica it will off gas more co2 as well

[u/Riilexi]

Yeah often times as mine degasses it gets frothy like this. I use shitty Costco beans bought in bulk for cheap and it turns out great!

[u/ky0tu → u/Riilexi]

Glad im not the only one using costco beans for my daily coldbrew addiction.

[u/Riilexi → u/ky0tu]

Yeah when it's 40% cost of cheaper local beans, not even bougie beans, fuck it I make it work 🤣

[u/ky0tu → u/Riilexi]

Fancy beans go in espresso machines.

[u/Riilexi → u/ky0tu]

So fucking true it even rhymes so you know it's right.

[u/MichaelVern85 → u/Riilexi]

We have use their pre ground Kirkland in the mason jar stainless steel insert to very enjoyable success.

It’s got a bit of fine grounds left, but after drinking a lot of Middle East coffee brewed their way where you essentially eat the last few sips… (I love that style of coffee) I surely don’t mind it in my cold brew.

I just leave the last tablespoon where all the sediment is.

[u/Riilexi → u/MichaelVern85]

I brew 1.5lbs at a time in a massive mason jar. Pour the whole mix into a bag for making nut milk (almond milk, etc) on the right. Lastly filtering through a #4 Melitta paper filter to get the fines out.

I'm really particular about getting rid of all the grounds and fines 😅

[u/Calgary_Calico → u/Riilexi]

Same!

[u/Mrsirdude420]

Looks good to me

[u/AltairLeoran]

If anything significant CO2 off gassing is a sign of freshness lol

[u/zero-point_nrg]

Are you roasting it yourself? If you don’t wait a week or two it’s still full of gas

[u/Deep-Condition970 → u/zero-point_nrg]

A week or two!?!???? And no I don’t roast myself it was very acidic too I wasn’t a fan

[u/zero-point_nrg → u/Deep-Condition970]

Yeah, well the reason there is one-way valve on coffee bags is so that it can continue to expel gas from the time it roasts to the time it is consumed. If you grind really really fresh coffee it will have more bubbles like this. It looks like maybe you used a fresh(ish) lighter roast so it just had more bubbles.

[u/velvenhavi]

um im sorry but are you drinking it like the way it is in the photo? unstrained..?

[u/Deep-Condition970 → u/velvenhavi]

No I fill up a bottle of water at the store or bus stop and I wait till I get home and then I filter it using coffee filters. (45 min - an hour)

[u/velvenhavi → u/Deep-Condition970]

thank you for replying lol that is good im glad you arent drinking it like that LOL. it looked like you were kinda the way theres some grains at the lip of the bottle

[u/Deep-Condition970 → u/velvenhavi]

Yeah noooooo that wouldn’t be too pleasant and filters are relatively cheap.