Best Cold Brew Makers & Filters
Toddy immersion, mason jar systems, French press style, and large-batch pitchers — the four immersion setups that actually make good cold brew.
Cold brew has become a fixture in specialty coffee for a reason: it's cheap, easy, forgiving of coffee quality, and produces a cup with dramatically less acidity and bitterness than iced hot-brewed coffee. The immersion method — soaking grounds in cold water for hours, then filtering — is the practical home approach. This guide covers the four immersion equipment categories: dedicated Toddy-style buckets, mason jar systems, French press adaptations, and large-batch pitchers.
Immersion cold brew equipment is genuinely inexpensive — the entire category fits in the $ to $$ range even for the higher-end picks. The premium in cold brew doesn't come from equipment cost; it comes from coffee quality (fresh, decent-origin beans) and filtration quality (removing fines cleanly so the cup isn't muddy).
What Actually Matters in an Immersion Cold Brew Maker
Filter design. The single biggest quality factor. Fine cloth or paper filters produce clean cold brew; coarse mesh filters let fines through and produce muddy results. Cheap cold brew makers with basic wire mesh filters often need a second filtration through paper to be drinkable.
Grounds-to-water ratio capacity. The vessel needs to hold enough coffee grounds at 1:4 concentrate ratios to actually produce useful concentrate volumes. Some cute small cold brew jars max out at a few ounces of concentrate per batch, which barely covers one drink.
Ease of cleaning. Wet coffee grounds are messy. A cold brew maker that separates cleanly into components you can rinse individually will get used more often than one where dumping the grounds is a wrestle. This is the underrated durability question that separates makers you keep from makers that end up in the back of a cabinet.
Refrigerator fit. The vessel spends 12 to 24 hours in your fridge. If it doesn't fit alongside normal groceries, you'll skip making cold brew during weeks when the fridge is full. Check the height and diameter against your fridge shelf before buying.
The one variable that changes everything
Grind size and coffee freshness matter more than the maker you buy. A perfect grinder and fresh coffee in a cheap mason jar will beat a premium Toddy setup with stale pre-ground drugstore coffee. If your cold brew is disappointing, address grind and coffee before shopping for equipment.
Pick 1 — Toddy-Style Bucket System
Toddy Cold Brew System (Classic 5-Cup) $
Best For: The classic cold brew experience, gift buyers, first-time cold brew makers
The Toddy system is the classic American cold brew setup — a plastic brewing bucket with a filter port at the bottom, a reusable cloth filter, and a glass carafe that captures the finished brew when you unplug the filter port. The 5-cup Toddy produces about 30 to 40 ounces of concentrate per batch and dominated the home cold brew market for decades before the wave of alternatives showed up.
The Toddy's cloth filter is what makes it work well — it captures fines effectively and produces genuinely clean cold brew concentrate. The tradeoff is that the cloth filter needs to be rinsed after each use and kept damp (in the refrigerator between uses) to prevent bacterial growth in the wet fabric. Some brewers find this ritual acceptable; others find it annoying enough to jump to paper-filter alternatives. Replacement filters are available and eventually needed after many uses. Also worth noting: the plastic bucket picks up faint coffee color over time, purely cosmetic.
Pick 2 — Mason Jar Cold Brew System
Mason Jar Cold Brew Kit with Fine-Mesh Filter $
Best For: Small households, gift buyers, minimalist kitchens, first-time brewers
The mason jar cold brew category is exactly what it sounds like: a wide-mouth mason jar (typically 32 oz or 64 oz) with a fine-mesh stainless steel filter insert that sits inside the jar. Grounds go in the filter, water fills the jar around and through the filter, the whole thing sits in the fridge, and after brewing you lift the filter out with the grounds contained. Some kits include the jar; others just include the filter and expect you to supply the jar.
The appeal is simplicity, cost, and compatibility with the mason jars most kitchens already own. The tradeoff is filter quality — mesh filters are coarser than cloth or paper and let more fines through, so the resulting cold brew has slightly more sediment than a Toddy or a paper-filtered brew. For most drinkers this is a non-issue (settle the concentrate, decant clean); for people who want the cleanest possible cup, a second filtration through paper (an aeropress filter or a paper coffee filter) after the initial brew handles it.
Pick 3 — French Press Cold Brew Adaptation
French Press (Used as Cold Brew Maker) $$
Best For: People who already own a French press, single-brewer households, dual-use kitchen equipment
A standard French press works surprisingly well as a cold brew maker if you already own one. Load the press with coarse coffee grounds, fill with cold water, stir once, put the lid on with the plunger up, and refrigerate for 18 to 24 hours. Press when done, decant the cold brew. The French press mesh acts as the primary filter; the concentrate has more body and fines than a paper-filtered brew but a similar profile to Toddy-style cloth-filtered brews.
The dual-purpose economics are the main appeal. If a French press is already living in the cupboard, cold brew adds a use for it without new equipment. The size limits the batch — a standard 34-ounce French press produces around 12 to 18 ounces of concentrate depending on ratio. Fine mesh French presses (some brands make presses with double-mesh filters) produce cleaner cold brew than single-mesh presses. Not the first-choice dedicated cold brew maker, but a legitimate way to try the method with zero new spend.
Pick 4 — Large-Batch Pitcher System
2-Quart Cold Brew Pitcher with Filter Basket $$
Best For: Households with multiple cold brew drinkers, weekly brewing schedules, entertaining
Large-batch cold brew pitchers scale up the same basic concept — coffee grounds in a filter basket, water around it, refrigerator time — to 2-quart or larger capacities. OXO, Takeya, and similar brands dominate this category with plastic-and-mesh designs that fit standard fridge shelves and dispense concentrate through a spout or pour lip on the pitcher.
Where these excel is scheduled weekly brewing for households with regular cold brew drinkers. One large batch on Sunday holds a family for the week without daily brewing effort. The filter baskets are usually coarse mesh (similar tradeoff to mason jar systems — clean-enough concentrate but not the cleanest possible), and most pitcher systems accept a secondary paper filter for people who want that additional clarity. Cleaning is reasonable if the basket lifts out cleanly, which most modern designs do well. Check pitcher height against fridge shelf clearance before buying — some are tall enough to be awkward in shorter fridges.
Filter Choices Across All Systems
Cloth filters (Toddy and cloth-filter-compatible pitchers): Produce the cleanest cold brew, contribute slightly to body/mouthfeel, need rinsing after each use and refrigerated storage between uses, replace every few months. The classical choice.
Mesh filters (mason jars, most pitchers, French presses): No consumables, easiest cleaning, but coarser filtration lets some fines through. Fine for most drinkers; combine with a paper secondary filter for maximum clarity.
Paper filters (secondary filtration after any of the above): The cleanest possible cold brew — filter your finished concentrate through a paper coffee filter or an AeroPress filter to remove the last of the fines. Adds a step but produces genuinely clarified concentrate that pours clean.
Ratios and Dilution
1:4 by weight (concentrate): 200 grams coffee to 800 grams water. Yields a strong concentrate that dilutes 1:1 with water or milk for a normal-strength drink. Standard for people who want maximum versatility from one batch.
1:5 by weight (medium concentrate): 200 grams coffee to 1000 grams water. Slightly weaker concentrate that needs less dilution. Good middle ground for people who mostly drink cold brew straight or lightly diluted.
1:8 to 1:10 by weight (ready-to-drink): 100 grams coffee to 800 to 1000 grams water. Produces cold brew you can pour straight over ice with no dilution. Wastes less water in the finished product but gives less flexibility per batch.
Ratios by volume work too but are less precise — a "cup of coffee per quart of water" is a rough approximation of 1:4 but varies by grind density. If you're serious about consistency, weigh both coffee and water.
Final Word
Cold brew is one of the highest-reward-per-effort methods in coffee. A cheap mason jar setup and a bag of decent coffee produces cold brew as good as most cafes serve. The equipment matters less than the coffee quality, the grind, and whether you actually brew regularly. Pick the vessel that matches your household size and fridge space, use a coarse grind, and match the ratio to how you'll drink the result. Everything else is refinement.
Frequently Asked Questions
What is the difference between immersion cold brew and slow-drip cold brew?
Immersion cold brew soaks coffee grounds in cold water for 12 to 24 hours, then filters everything out at the end. Slow-drip (also called Dutch or Kyoto style) drips cold water through a bed of grounds over 3 to 8 hours. Immersion produces a rounder, heavier, sweeter cup; slow-drip produces a cleaner, brighter, more tea-like cup. Both are cold brew, but they taste noticeably different. This guide covers immersion setups; separate coverage exists for slow-drip towers.
How long should I brew immersion cold brew?
Standard is 12 to 24 hours in the refrigerator. Room temperature brewing works too and is slightly faster, but refrigerated brewing gives more predictable results and keeps the coffee safer against any bacterial growth from long steep times. Shorter than 12 hours produces weak, under-extracted cold brew; longer than 24 hours starts extracting bitter compounds even at cold temperature.
What ratio of coffee to water should I use?
For concentrate you'll dilute later, use 1:4 or 1:5 by weight (1 gram coffee per 4 to 5 grams water). For ready-to-drink cold brew you'll pour straight over ice, use 1:8 or 1:10. Concentrate is more versatile — you can dilute it with water, milk, or ice to any strength you want — so most home brewers make concentrate and dilute per drink.
What grind do I need for cold brew?
Coarse — similar to French press or coarser. Fine grinds produce over-extracted, muddy cold brew and clog most cold brew filters. If you're using pre-ground coffee, look for a bag labeled specifically for cold brew or French press. If you're grinding yourself, a burr grinder set to coarse works better than a blade grinder at any setting.
How long does cold brew keep in the fridge?
Sealed in the refrigerator, cold brew concentrate keeps 1 to 2 weeks without significant flavor degradation. Diluted cold brew is best within a few days. Some brewers report longer keeping — up to a month — but flavor quality drops noticeably past two weeks. Making smaller batches more frequently produces better cups than making one large batch that sits.