Making Cold Brew Coffee Using the Toddy System

Quick answer

• Use a coarse grind for your coffee beans.
• Always use filtered water.
• Stick to the recommended coffee-to-water ratio.
• Let it steep for 12-24 hours.
• Filter the concentrate carefully.
• Dilute with water or milk to your taste.

Who this is for

• You’re new to cold brew and want a foolproof method.
• You’ve tried other cold brew makers and want to upgrade.
• You crave smooth, low-acid coffee without the bitterness.

If you’re looking for a reliable and easy-to-use cold brew maker, the Toddy Cold Brew System is an excellent choice for consistent results.

What to check first

Brewer type and filter type

You’re using the Toddy Cold Brew System. That means you’ve got a brewing container, a decanter, and a set of paper filters (or a reusable felt filter). Make sure all the pieces are clean and accounted for. The paper filters are key for a clean cup.

Water quality and temperature

Cold brew is mostly water, so good water makes good coffee. Use filtered water if your tap water has a funky taste. You don’t need hot water here, obviously. Room temperature or slightly cooler is fine.

Grind size and coffee freshness

This is a big one. You need a coarse grind, like breadcrumbs or coarse sea salt. Too fine, and your coffee will be muddy and over-extracted. Freshly ground beans are always best. Store your beans in an airtight container away from light and heat.

For the best cold brew, always start with high-quality coarse grind coffee beans, as the grind size significantly impacts the final taste.

Coffee-to-water ratio

The Toddy system usually recommends a 1:4 ratio of coffee to water by weight. So, if you use 1 pound of coffee, you’ll use 4 pounds (or about 64 oz) of water. Don’t eyeball this too much, especially at first. A kitchen scale is your friend.

To ensure precise ratios and consistent flavor, a reliable coffee scale is an invaluable tool for measuring your coffee and water.

Cleanliness/descale status

If your Toddy hasn’t been used in a while, give it a good wash. Any lingering coffee oils can turn rancid and mess with your brew. Descale if you have hard water, though it’s less critical for cold brew than hot.

Step-by-step (brew workflow)

1. Gather your gear. You’ll need your Toddy system (brewing container, lid, decanter), paper filters, and the filter holder. Make sure everything is clean.

• What “good” looks like: Clean components ready to go.
• Common mistake: Using a dirty brewer. This adds off-flavors. Always rinse or wash before brewing.

2. Prepare the filter. Wet one Toddy paper filter and place it inside the filter holder. Then, place the holder into the top of the brewing container.

• What “good” looks like: A damp, well-seated filter.
• Common mistake: Not wetting the filter. This can lead to a weak seal and grounds in your coffee.

3. Add your coffee. Measure your coarsely ground coffee and add it to the filter. The Toddy system is designed for a specific amount, often around 12 oz of coffee for the standard setup.

• What “good” looks like: An even bed of coffee grounds.
• Common mistake: Using a fine grind. This clogs the filter and leads to bitter, muddy coffee.

4. Add the water. Slowly pour in your filtered water (room temp or cooler). Aim for about 64 oz of water for the standard Toddy recipe. Pour gently to avoid disturbing the coffee bed too much.

• What “good” looks like: Water saturating all the grounds evenly.
• Common mistake: Pouring too fast. This can create channels in the coffee bed, leading to uneven extraction.

5. Stir gently. Give the coffee and water a gentle stir to ensure all grounds are saturated. You’re not looking for a vigorous mix, just ensuring no dry pockets.

• What “good” looks like: All grounds are wet.
• Common mistake: Over-stirring. This can break up the grounds and lead to bitterness.

6. Place the lid. Put the lid on the brewing container.

• What “good” looks like: A secure lid.
• Common mistake: Leaving the lid off. This lets dust and other things in.

7. Let it steep. Place the brewing container on top of the decanter and let it sit at room temperature for 12-24 hours. Longer steeping equals a stronger concentrate.

• What “good” looks like: Patience. 12 hours is a good starting point.
• Common mistake: Impatience. Brewing for only a few hours won’t extract enough flavor.

8. Remove the lid and holder. Once steeping is done, carefully remove the lid and then the filter holder with the wet grounds. Be careful, it’s heavy.

• What “good” looks like: A clean removal.
• Common mistake: Spilling grounds. Let it drain for a bit before lifting.

9. Let it drip. Allow the concentrate to drip fully into the decanter. This might take a few minutes.

• What “good” looks like: Slow, steady dripping.
• Common mistake: Rushing the drip. You want all that good stuff out.

10. Remove the filter. Carefully lift the filter holder and discard the used grounds and paper filter.

• What “good” looks like: Clean hands and a clear brewing container.
• Common mistake: Not discarding the grounds promptly. They can start to smell.

11. Store the concentrate. Seal the decanter and store the cold brew concentrate in the refrigerator. It’s best consumed within 1-2 weeks.

• What “good” looks like: A well-sealed container in the fridge.
• Common mistake: Leaving it out. This spoils the concentrate.

12. Dilute and enjoy. When you’re ready for a cup, dilute the concentrate with water, milk, or your favorite creamer. A 1:1 or 1:2 ratio of concentrate to liquid is a good starting point.

• What “good” looks like: A perfectly balanced drink.
• Common mistake: Drinking it straight. It’s a concentrate, remember!

Common mistakes (and what happens if you ignore them)

Mistake	What it causes	Fix
Using a fine coffee grind	Muddy, bitter coffee; clogged filter	Use a coarse grind; check your grinder settings.
Using stale or pre-ground coffee	Flat, dull flavor; lack of aroma	Grind fresh beans right before brewing.
Incorrect coffee-to-water ratio	Weak or overly strong concentrate	Use a scale to measure; start with 1:4 ratio by weight.
Not steeping long enough	Weak, watery coffee; not enough extraction	Steep for at least 12 hours; up to 24 hours for stronger.
Not pre-wetting the filter	Grounds in your cup; weak seal	Wet the paper filter thoroughly before adding coffee.
Over-extraction	Bitter, astringent taste	Avoid fine grinds, don’t over-stir, and don’t steep too long.
Using poor quality water	Off-flavors; dull taste	Use filtered water for the cleanest taste.
Not cleaning the brewer	Rancid oils; stale coffee taste	Wash all parts thoroughly after each use.
Storing concentrate improperly	Spoilage; off-flavors	Keep concentrate refrigerated in a sealed container.
Diluting incorrectly	Too strong or too weak drink	Start with 1:1 or 1:2 ratio and adjust to your preference.

Decision rules (simple if/then)

• If your cold brew tastes bitter, then try a coarser grind because fine grounds over-extract.
• If your cold brew is weak, then steep it longer or use more coffee because insufficient extraction leads to a watery taste.
• If you have grounds in your coffee, then check your filter seal and grind size because a poor seal or fine grounds will let them through.
• If your cold brew tastes flat, then use freshly roasted and ground coffee because stale beans lose their vibrancy.
• If you notice an off-flavor, then clean your Toddy system thoroughly because residual oils can go rancid.
• If you want a stronger concentrate, then increase the coffee-to-water ratio slightly or steep for a few more hours because more coffee or more time equals more extraction.
• If you prefer a smoother, less intense flavor, then dilute the concentrate more because cold brew is meant to be diluted.
• If your tap water tastes bad, then use filtered water because water quality significantly impacts coffee flavor.
• If you’re brewing for the first time, then stick to the 12-hour steep time to get a baseline because you can adjust from there.
• If you want to experiment with different flavors, then try different coffee origins or roast levels because this is where the fun begins.

FAQ

How coarse should my coffee grind be for the Toddy?

You want a grind that looks like coarse breadcrumbs or sea salt. If it’s too fine, it’ll clog the filter and make your coffee bitter.

How long can I store my cold brew concentrate?

In the refrigerator, sealed tightly, it should be good for about 1-2 weeks. After that, the flavor can start to degrade.

Can I use hot water to speed up the Toddy process?

No, the whole point of cold brew is slow, cold extraction. Hot water will extract differently and defeat the purpose of cold brew.

What’s the best coffee-to-water ratio for the Toddy?

The system usually suggests around a 1:4 ratio of coffee to water by weight. This makes a concentrate that you dilute later.

Why is my cold brew bitter?

This is usually due to a grind that’s too fine, over-extraction (steeping too long or too hot), or stale coffee. Double-check your grind size.

How do I dilute the Toddy concentrate?

Start with a 1:1 ratio of concentrate to water or milk. You can adjust from there. Some people prefer 1:2 or even 1:3 for a less intense drink.

Can I use a reusable filter with the Toddy?

Yes, Toddy offers reusable felt filters. They work well, but make sure to clean them thoroughly after each use to prevent off-flavors.

What if I don’t have a scale?

You can use volume measurements, but it’s less accurate. A good starting point is about 2 cups of whole beans to 8 cups of water. Weighing is much more consistent.

What this page does NOT cover (and where to go next)

• Specific coffee bean recommendations (explore different origins and roasts).
• Advanced cold brew techniques like double-filtering or oxygenation.
• Recipes for cold brew-based coffee drinks (beyond simple dilution).
• Detailed grinder reviews or comparisons.