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Immersion vs plate vs counterflow chillers for wort

A coil in the kettle, a brazed block of plates, or a tube inside a tube. All three cool wort fast; they differ in cleaning, clogging and how much gear they need.

Updated November 2026 · 6 min read

A gasketed plate heat exchanger with its frame and pipework
JaDeD Brewing Hydra Triple-Coil Copper Immersion ChillerNY Brew Supply Copper Immersion Wort Chiller, 3/8 in. x 25 ftNorthern Brewer Copperhead Copper Immersion Chiller, 25 ftAnvil Stainless Immersion Chiller with Hose and FittingsJaDeD Brewing 50 ft x 3/8 in. Copper Immersion ChillerNY Brew Supply Stainless Immersion Wort Chiller, 3/8 in. x 50 ft
Photo: Renegade, Public domain, via Wikimedia Commons
The short version
  • Immersion: a coil sits in the kettle with tap water running through it. Easiest to sanitize (drop it in the boil) and clean. Works with any kettle and BIAB.
  • Plate: brazed stainless plates in a small block; wort and water flow in opposite directions. Fastest per size and uses the least space, but can clog with hop debris and can't be opened.
  • Counterflow: a copper or stainless tube inside a water jacket. Fast single-pass chilling with a larger flow path than plates.
  • In a hot summer, ground water may be too warm to reach pitching temperature with any chiller; a pre-chiller in ice water helps.

Immersion vs plate chiller is the main wort-chilling choice, with counterflow as the middle option. All three move heat from boiling wort into cold tap water so you can pitch yeast quickly and get a good cold break. An immersion chiller sits in the kettle; plate and counterflow chillers sit outside it, and the wort flows through them on its way to the fermenter, by gravity or a pump.

Below we compare the three types on listed sizes, maker chill-time claims, cleaning, clogging and water use, with picks from JaDeD Brewing, NY Brew Supply, Northern Brewer, Anvil, KegLand, CC-STAR, FERRODAY and Grainfather. All of them live in the brewing systems and chillers hub.

Immersion chillers

Copper or stainless coil in the kettle; simple to clean, no pump needed

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vs

Plate and counterflow chillers

Wort flows through the chiller on its way to the fermenter; fast, but filter the hops

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Picks from each side

Immersion chillers

Plate and counterflow chillers

Immersion vs plate vs counterflow at a glance

ImmersionPlateCounterflow
Where the wort isIn the kettleFlows through brazed platesFlows through the inner tube
Needs a pump or gravity drain✗✓✓
Sanitizing✓ Drop in the boil for the last 10–15 min~ Recirculate hot wort or flush with sanitizer~ Recirculate hot wort or flush
Cleaning✓ Wipe the outside✗ Can't open; backflush right away~ Flush; the inside isn't visible
Hop and trub tolerance✓ Not affected✗ Clogs without a filter~ Larger flow area than plates
Size and storage~ Bulky coil✓ Palm-sized block~ Coil with jacket
Works with BIAB and any kettle✓~ Needs a valve~ Needs a valve
Cold break stays inKettle (whirlpool and leave it)Fermenter, unless you settle itFermenter, unless you settle it

Source: Listing data for the chillers shown; Palmer, How to Brew (cooling the wort)

Copper or stainless, and how long a coil?

Copper conducts heat about 20–25 times better than stainless steel (published thermal conductivity values), so a copper coil of the same length cools faster. Stainless resists corrosion and looks clean for longer, so makers make stainless coils longer to compensate.

Hands fitting tubing to a homemade copper coil wort chiller
A homemade copper coil.Photo: Wheeler Cowperthwaite, CC BY 2.0, via Flickr

Listed immersion coil length

Feet of tubing in contact with the wort

NY Brew Supply copperNY Brew Supply copper: 25 ft25 ftNorthern Brewer CopperheadNorthern Brewer Copperhead: 25 ft25 ftAnvil stainlessAnvil stainless: 28 ft28 ftJaDeD 50 ft copperJaDeD 50 ft copper: 50 ft50 ftNY Brew Supply stainlessNY Brew Supply stainless: 50 ft50 ftJaDeD Hydra (3 × 25 ft)JaDeD Hydra (3 × 25 ft): 75 ft75 ft
Source: Listings for each chiller

A 25-foot, 3/8 in. copper coil is the classic 5-gallon size. The JaDeD Hydra runs three 25-foot coils in parallel; JaDeD claims it cools 5 gallons from boiling to 68°F in 3 minutes with 18 gallons of 58°F tap water. That is a maker claim under ideal water temperature, not something we measured.

3 min5 gal to 68°F with 58°F water, JaDeD Hydra (maker claim)
16 min23 L cool and transfer, Grainfather counterflow (maker)
20 min100 L chilled, CC-STAR 30-plate (maker claim)

Plate chillers: fast and compact, but filter the hops

A brazed plate chiller packs a large heat-transfer area into a small block: the CC-STAR 30-plate lists 0.336 m² in a block about 191 × 73 mm, and KegLand's Chillout MKIV 30-plate measures 12.4 × 2.9 × 2 in. The narrow channels are the catch. Hop pellets, whole cones and break material can clog them, and the plates can't be opened for inspection.

Corrugated stainless plates of a plate heat exchanger
Thin channels clog with hop debris.Photo: termoprom.com.ua, CC BY-SA 4.0, via Wikimedia Commons
  • Use a hop spider, hop bags or a kettle hop filter, and whirlpool before you drain.
  • Backflush with hot water immediately after use, then with a brewing cleaner used per the label.
  • Sanitize by recirculating near-boiling wort through it for the last minutes of the boil, or with sanitizer at label dilution.
  • Check the fittings: KegLand uses 1/2 in. BSP posts; many generic chillers use 1/2 in. NPT or barbs.

Counterflow chillers: the middle ground

A counterflow chiller runs wort through a copper or stainless tube while water flows the other way in an outer jacket. KegLand notes its Red Reaper has a larger flow area than plate chillers, which helps against clogs, and Northern Brewer's stainless model lists 18 ft of contact length with threaded stainless fittings. Grainfather's counterflow chiller is designed to attach to its G30 and G40 systems and lists 3 L/min of water flow.

Counterflow and plate chillers both send cold break into the fermenter. That isn't a flaw in normal amounts, but if you want clearer wort, let the fermenter settle for an hour and rack off, or use a kettle fining (see Whirlfloc vs Irish moss).

Summer water and pitching temperature

Any chiller can only bring wort near the temperature of the water you feed it. In a hot summer, ground water can be warmer than the pitching temperature for ales or lagers. Two fixes: run tap water first, then switch to ice water through a pre-chiller or a pump in a bucket of ice; or chill as low as you can and finish in a temperature-controlled fermentation chamber. See the temperature control and summer page.

Once chilled, check the volume and gravity (the dilution and boil-off calculator helps you correct both) and work out how much yeast to pitch with the yeast pitch rate calculator.

Who should choose which

Chiller type by situation

SituationImmersionPlateCounterflow
First chiller, 5 gal extract or BIAB✓~~
Kettle with no valve✓✗✗
Pump already in the system~✓✓
Very hoppy beers, lots of pellets✓✗ Unless filtered~
10+ gal batches~ Long or multi-coil✓✓
Small storage space~✓~
Grainfather G30 owner~~✓ Matching fittings

Choose an immersion chiller for your first chiller, for BIAB and for kettles without a valve; a 25-foot copper coil or a multi-coil Hydra covers 5-gallon batches. Choose a plate chiller if you have a pump, filter your hops and want the fastest, smallest unit. Choose counterflow if you want single-pass speed with fewer clog worries, or if you own a Grainfather.

Mistakes to avoid

  1. Putting an unsanitized immersion chiller in cooled wort. Add it to the boil for the last 10–15 minutes instead.
  2. Leaving a plate chiller wet and dirty. Residue inside is invisible; backflush right away.
  3. Running water before checking fittings. A leaking hose connection can drip cold water into the wort. Check connections first.
  4. Chilling in the garage next to a propane burner. Burners belong outdoors; electric systems are the indoor option.
  5. Wasting water. Collect the warm outflow in buckets for cleaning, or recirculate ice water in summer.
Propane burners: outdoors onlyRun jet burners in open air, away from the house. CPSC says to keep fryer-style propane burners out of the garage, off the deck and away from the house; a garage, porch or carport with the door open is still not outdoors. Burning propane makes carbon monoxide. Leak-check fittings with soapy water and never leave a boil unattended.Source: CPSC holiday cooking safety
Verdict

Immersion chillers are the simplest and most forgiving: no pump, no clogging, easy to sanitize. Plate chillers are the fastest and smallest if you have a pump and keep hops out of them. Counterflow chillers sit in between, with a larger flow path than plates. For most 5-gallon brewers, a 25–50 ft copper immersion coil is the first chiller to buy.

How we chose

We compared listed coil lengths, materials, plate counts, dimensions and maker chill-time claims for the chillers shown, plus Palmer's How to Brew chapter on cooling. We did not time or measure these chillers; speed figures are the makers' claims.

Yeast pitch rate calculatorYeast pitch rate calculator: cells needed for ales and lagers by volume and gravity, dry yeast grams from…Dilution and boil-off calculatorDilute wort to a target gravity, and work out pre-boil volume from your boil-off rate, boil time and losses,…Printable brew-day log and recipe sheetFree brew-day log: record recipe, water and salts, mash, gravities, yeast, fermentation temperatures,…

Questions

Immersion vs plate chiller: which is faster?
Plate chillers usually cool faster for their size because of their large plate area, and they chill wort in a single pass. Large immersion designs close the gap: JaDeD claims its triple-coil Hydra cools 5 gallons to 68°F in 3 minutes with 58°F water.
Is copper or stainless better for a wort chiller?
Copper conducts heat roughly 20–25 times better than stainless, so a copper coil of the same length chills faster. Stainless resists corrosion and is easier to keep shiny, so stainless coils are often longer.
How fast should I chill wort?
As fast as practical, so you can pitch yeast promptly and get a good cold break. Most homebrewers aim to reach pitching temperature within about 30 minutes or less.
Do plate chillers clog?
They can, with hop debris and break material. Use a hop spider or kettle filter, whirlpool before draining, and backflush the chiller right after use.
Do I need a pump for a counterflow or plate chiller?
Not always. Gravity draining from a kettle valve works if the kettle sits higher than the chiller and fermenter. A pump gives steadier flow and lets you recirculate to sanitize.
What size immersion chiller for 5 gallons?
A 25-foot, 3/8 in. copper coil is the classic 5-gallon size. Longer coils (50 ft) or multi-coil designs chill faster or handle bigger batches.

Sources

  1. John Palmer, How to Brew (online edition)
  2. The Engineering ToolBox: Thermal conductivity of metals
  3. Grainfather: G30v3 counterflow chiller (US/CA)
  4. CPSC: holiday cooking safety (outdoor-only propane fryers)