Cold Brew Coffee Filters -Single Use Filter Sock Packs, Disposable, Biodegradable Fine Mesh Brewing Bags for Concentrate, French/Cold Press Kit, Tea in Mason Jar or (30 Pack - Commercial Size)

I use these with 32 oz mason jars and make two batches at a time. Easy to fill, easy to remove and most importantly NO COFFEE SLUDGE! I have two other cold brew systems the Bodum one from Target that looks like a giant French Press and a larger pitcher style from Walmart. Both require double straining or the inevitable coffee sludge in the bottom. The best part is just remove the bag and toss. I believe they’re compostable also. It works just like a tea bag. Update: 6+ years later and I still continue to love these. I now prefer to use 2 bags in a 64 oz mason jar and I’ve added a pour spout. It’s still the easiest and most cost effective cold brew system out there. I also prefer to brew at room temp for a better extraction and then chill the final product after 18-24 hrs. If you use an espresso size grind there may be a little residue at the bottom but most pre ground coffee is medium coarseness and it will leave no coffee sludge. Happy brewing fellow coffee folk.

I fill each pouch with 1 1/2 - 2 oz coffee (2 oz makes a strong brew), using a large opening collapsible kitchen silicone funnel (only found in the kitchen gadget section of Walmart). Regular kitchen funnels have too small an opening for the coffee to easily flow into the pouch. "Mason jar" funnels are too large, barely fitting the pouch opening without a lot of effort. All that said, you can spoon the coffee into the pouch, but it takes longer. Once the pouch is filled, pull the strings until the pouch is closed and tie the strings. Then place one pouch in a 32 oz Mason jar and fill with water, or 2 pouches in this SUPER pitcher I found on Amazon: Bormioli Rocco Hermetic Seal Glass Pitcher With Lid and Spout [68 Ounce] (see picture), and fill with water. Then refrigerate for 18-24 hours. Remove the pouch and discard. Some fines are in the coffee as I have been using drip grind, not coarse grind, but I filter the coffee before drinking. The only downside is that the strings that hang outside the container carry liquid via osmosis and I have found coffee on the refrigerator shelf after a day of brewing. No big deal. I will try placing the string on top of the container and see if the liquid stays off the shelf or just put the string inside the container. So far, I have had delicious coffee using McDonald's Premium and Breakfast blends, even microwaving the cold brew. The coffee is smooth and flavorful. Much better and more consistent than brewing hot. I have 2 pitchers and lots of Mason jars, so a bag of coffee gets completely used up in one brew. After brewing, I fill mason jars to the top and screw closed with white plastic tops available on Amazon. The refrigerated coffee stays fresh until used up. This solves the problem I had with coffee (beans or ground). The unused remainder of grounds or beans always went stale after only brewing one or two pots of coffee using a drip coffee maker, no matter what I did - vacuum sealing the coffee in bags or containers, using oxygen absorbers, freezing, refrigerating or room temperature. I drink black coffee so freshness is important.

Almost too good means very little gets out other than a very fine dust but when you put the bags into the water, the bags/ground tend to float very high. I push them under and give a few gentle squeezes to get some of the air out. After a few hours, I will push them down a few times. By the end of the 24 hour cycle, they have soaked up the water and while floating, 99% is under the surface. I read that the bag takes 1.5 cups. I disagree with this. I use a 2 cup/64 oz water ratio and 1 cup just fits into the bag and still allowing room to tie it off neatly. I wish the bags were available in a larger size that would accommodate say 4 cups which would allow a nice loose pack of 2 cups to allow the water to freely circulate. I tested these with my favorite cold brew recipe.. 2 cups of Sumatra ( starbucks) and 64 oz of water for 24 hours on the counter( not the fridge). The warmer ambient air works well at drawing out a lot of flavor. I lose about 8 oz of water to absorption which I add back when bottled. I use this straight up in a cup filled 2/3 coffee and 1/3 milk, no sweetener. This give a very nice nuanced cup with chocolate overtones. The dark roast holds up well to the milk and the ice slowly melting ( a yeti style 20 oz cup). I would not recommend this style for pure straight ice coffee.. it's a bit aggressive for that

These work great, for me. I am a senior citizen, never driven (a vehicle), so have always brewed coffee at home. Decided to try "cold brew," so I did a little research. I ordered these "coffee brewing bags." So easy to use I had no hope of this being a "thing" that I would continue to do. Well, I was wrong! I love this and as I stated, "so easy to use." You put coffee in the bags, immerse in cold water for 12 hours and ta-da! Delicious cold coffee with no bitter after taste, no mess to clean up, I am sold! I will be ordering more of these same bags in the future.

Simple and easy to use. I used 2 of These with coffee in a pitcher and the cold brew was nice and smooth.