My Cheap No-Fuss Cold Brew Method for Summer

Why I stick with this method

I want smooth iced coffee all summer without another countertop gadget or fancy setup. This uses stuff most kitchens already have. It makes a concentrate I dilute to taste. One batch lasts me the week in the fridge.

No special skills needed. Just coffee, water, time, and a strainer.

The inexpensive gear

I use a large glass jar or pitcher with a lid. A big mason jar works great. If I have a French press on hand, that doubles as the brewer and first filter.

For straining I grab a fine-mesh kitchen strainer lined with a paper coffee filter or a piece of cheesecloth. A funnel helps pour into a clean storage bottle. That’s it. Nothing to buy if you already brew coffee or cook.

Coarse-ground coffee is key. I grind it myself to about the size of kosher salt or French-press grind. Pre-ground often runs too fine and can turn muddy or bitter. Filtered water tastes better if your tap is off.

The coffee-to-water ratio

After trying stronger and weaker batches, I settled on a concentrate ratio of about 1:8 by weight. That’s 1 gram of coffee for every 8 grams of water. For a simple no-scale version, roughly 1 cup of coarse grounds to 4–5 cups of water also works and gives a solid concentrate.

This is strong enough to dilute later with water, milk, or ice without tasting weak. If you prefer ready-to-drink strength, go closer to 1:12 and skip heavy dilution. Taste and adjust next batch. Cold brew is forgiving.

How I make a batch

1. Add the coarse grounds to the clean jar or French press.
2. Pour in cold or room-temp filtered water. Stir gently so everything gets wet.
3. Cover and put it in the fridge. I steep 14–18 hours. Overnight works. Up to 24 hours is fine if you want it bolder; longer can get woody.
4. Strain. Pour through the mesh strainer lined with a filter or cheesecloth into a clean container. For French press, press slowly then do a second pass through a paper filter if you want it cleaner.
5. Discard the grounds (or compost them). That’s the concentrate.

The whole active time is maybe 10 minutes plus waiting.

Storing it so it lasts the week

I pour the finished concentrate into a clean glass bottle or jar with a tight lid. Straight into the fridge.

Homemade cold brew concentrate stays good about 7 days, often up to 10 if everything was clean and it stays cold. I aim to finish a batch within the week for best flavor. It can mellow a bit after a few days, which I don’t mind. If it smells off or tastes sour in a bad way, toss it.

I keep it as concentrate and only dilute what I’m drinking. Diluted cold brew doesn’t keep as long—usually a couple of days—so I mix per glass.

How I serve it

Fill a glass with ice. Pour concentrate about halfway (or to taste). Top with cold water, milk, or a splash of both. Stir. That’s my everyday iced coffee.

Some days I go stronger over just ice. Other days lighter. No syrups or extras required, though a little sweetener works if you like it.

Small tips that help

• Clean gear matters. Old oils make the next batch taste off faster.
• Coarse grind keeps it from clogging filters and over-extracting.
• Make it on a weekend or whenever you have a free evening so it’s ready Monday.
• Scale up or down. Same ratio.

This covers me for hot days without the cafe run or extra gear clutter. Simple, cheap, and consistently good. Give the 1:8 concentrate a try and tweak from there.