Be A Better Zymologist


The Fermometer® is a liquid crystal display thermometer  designed to monitor the temperature of the fermentation process without the sanitation concerns of immersion thermometers.  It sports suggested ranges for the fermentation of both ales, lagers, Belgian ales and red and white wines.  Please follow the yeast manufactures recommendations for the correct fermentation temperature.  Be a better homebrewer or winemaker.  Links to fermentation temperature suggestions by yeast producers are listed below.


It’s is easy to use. Simply peel off the paper and attach to the outside of your fermenter with the self-adhesive backing.  It is best to stick it at mid-height on your fermenter to average out any stratifications in temperature that may occur once the fermentation slows down.  Be careful, once it’s on, it won't come off without damaging it.

Reading the temperature is straight forward.  If one crystal is highlighted in green, it is that temperature.  If two adjoining crystals are highlighted in blue and tan, it is the temperature in between.

The Fermometer™ is water resistant, not water proof.  While it can easily be rinsed or washed with traditional cleaning and sanitizing solutions, it should not to be immersed for extended time periods.  That includes using t-shirts as evaporative coolers.  Such exposure will result in water seeping between the laminate layers and permanently discoloring the crystals.  As with beer, keep your Fermometer out of direct sunlight.


People have often inquired about the accuracy of the Fermometer® and what it is measuring when placed on the outside of the fermenter in contact with ambient air.   It’s very close to measuring the temperature of the fluid in the fermenter.  In most normal fermentation situations, the fermometer is only off by about 0.0 - 0.5 degrees from the internal fermenting temperature.

Yeast Fermentation Temperatures by Manufacturer



        Brew Lab



        White Labs




        White Labs



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Alabrew Homebrewing, 8916 A Parkway East, Birmingham, AL, 35026,  205-833-1716,

Fairview Homebrew LLC, 1012 E Fairview Ave., Montgomery, AL, 36106, 334-322-3143,

The Wine Smith, 6800A Moffett Road, Mobile, AL, 36618, 251-645-5554,

Werner’s Trading Company, Highway 278, Cullman, AL, 256-734-5673,


Alaska Homebrew Supply, 617 S Knik Goose Bay Road, Ste H, Wasilla AK, 99654, 907-863-0025,

Brew Time, 29 College Road, Fairbanks, Alaska, 907-479-0200,

Gourmet Alaska, Nugget Mall, 8745 Glacier Highway, Ste 362, Juneau, AK, 99801, 907-789-0606


Brewers Connection, 1435 E University Drive, Suite 10, Tempe, AZ, 480-449-3720,

Brew Your Own Brew, 2562 N. Campbell Ave, Tucson, AZ,  520-322-5049,

Brew Your Own Brew, 8230 E. Raintree Rd. #103, Scottsdale, AZ, 85260, 480-625-4200,

Brew Your Own Brew, 525 E. Baseline Rd., Gilbert, AZ, 85233, 480-497-0011,


Growfresh, 2900 Zero Street, Fort Smith, Arkansas, 72936, 479-648-8885,

The Home Brewery, 455 E. Township Street, Fayetteville AR, 479-587-1440, http://www.thehomebrewery.comCalifornia

The Water Buffalo, 106 S Rodney Parham Rd., Little Rock, AR, 722205, 501-725-5296,


Beer, Beer & More Beer, 2413 Buena Vista Avenue, Walnut Creek, 800-600-0033,

Beer and Wine Craft, 220 Sandy Springs Circle #109, Sandy Springs, CA, 30328, 404-252-5606,

Beer & Winemakers of America, 755 E. Brokaw Rd., San Jose, CA, 95112, 408-441-0880,

Beverage Factory, 8510 Miralani Drive, San Diego, CA, 92126, 800-710-9939,

Eagle Rock Homebrew Supply, 4981 Eagle Rock, Blvd., Los Angeles, CA, 90041, 323-258-2107,

Fermentation Solutions, 2507 Winchester Blvd, Campbell, CA 95008, 408-871-1400,

GroBrew, 765 W. 3rd Ave, Escondido, CA, 92025, 657-888-5125,

Home Beer, Wine, Cheese Shop, 22836 Ventura Blvd, #2, Woodland Hills, CA, 800-559-9222,

HopTech Homebrewing Supplies, 6398 Dougherty Rd. # 7, Dublin, CA, 925-875-0246,

Hydrobrew, 1319 S. Coast Highway, Oceanside, CA, 92054, 760-966-1885,

MoreBeer!, 995 Detroit Ave, Unit G, Concord, CA, 94518, 925-771-7107,

MoreBeer!, 991 N. San Antonio Rd, Los Altos, CA, 94022, 925-949-2739,

MoreBeer!, 1506 Columbia Ave, Suite 12, Riverside, CA, 92507, 925-779-9971,

MoreBeer!, 2315 Verna Ct., San Leandro, CA 94577, 510-351-3517,

NorCal Brewing Solutions, 1768 Churn Creek Rd, Redding, CA 96002, 530-243-2337,

Portable Potables, 1011 B 41st Avenue, Santa Cruz, CA, 95062, 831-476-5444,

San Francisco Brewcraft, 1555 Clement Street, San Francisco, CA  415-751-9338,

Seven Bridges Cooperative, 325A River Street, Santa Cruz, CA 831-454-9665,

Stein Fillers Fermentation Supply, 4160 Norse Way, Long Beach, CO, 90808, 562-425-0588,

The Beverage People, 1845 Piner Road, Suite D, Santa Rosa, CA,  95403, 704-544-2520,

Home Beer, Wine, Cheese Shop, 22836 Ventura Blvd, #2, Woodland Hills, CA, 800-559-9222,


Grainy Days Homebrew Supply, 12445 E 39th Ave, #301. Denver, CO 80239, 303-373-4169,

Quirky Homebrew, 425 W 115th Ave, Unit 6, Northglenn, CO 80234, 303-457-3555,

Old West Homebrew Supply, 229 East Pikes Peak Avenue, Colorado Springs, CO, 719-635-2443,

The Brew Hut, 15120 E Hampden Ave, Aurora, CO 80014, 303-680-8898,

Tom’s Brew Shop, 883 Parfet St., Suite J, Lakewood, CO, 80215, 303-232-5347,


Beer and Winemakers Warehouse, 290 Murphy Road, harford, CT, 06114, 860-247-2969,

EPIC Homebrew Supply, 487 Federal Court, Brookfield, CT, 06804,  203-826-8797,

Stomp & Chrush, LLC , 6 Pepperbush Drive, Clinton, CT 06413, 860-552-4634,

Maltose Express, 246 Main Street, Monroe CT, 06468, 203-452-7332,

Zok’s Home Brewing & WinemakingSupplies, 18 North Street, Willimantic, CT, 860-456-7704,



Booth’s Brewing, 333 Falenburg Road N D-405, Tamp, FL, 813-685-1909,

Bx Beer Depot, 2964 2nd Avenue North, Palm Springs, FL 33461, 561-965-9494,

Hearts Home Brew, 6190 Edgewater Drive, Orlando, FL, 32810, 407-298-4103,

HiFi Homebrew Supply, 1650 N Hercules Ave, Unit I, Clearwater, FL 33765, 727-240-0804,

HomeBrew Den, 1410 Market Street, Tallahassee, FL, 32312, 850-219-1310,

FLAGALA Hardware, 9700 Front Beach Road, Panama City Beach, FL, 32407, 850-234-6550,

St. Augustine Beer Brewing Solutions, 215 W King Street, Ste 2, St. Augustine, FL 32084, 904-814-1514,

The Homebrew Store, 1422 S. Narcoossee Road, St. Cloud, FL 34771,  407-957-2337,


Barley & Vine,  1445 Rock Quarry Road, Stockbridge, GA, 770-507-5998,

Beer Necessities, 10595 Old Alabama Connector, Ste 10, Alpharetta,GA, 30022, 770-645-1777,

Brew Depot, 10595 Old Alabama Rd Connector, Appharetta, GA 30022, 770-645-1777,

Gravity Craft & Homebrew Supply, 1136 Dogwood Dr. SE, Ste A, Conyers, GA, 30012,


Homebrew in Paradise, Honolulu, HI, 740a Moowas Street, Honolulu, HI, 808-834-2739,


Brewers Haven, 1795 S Vista Ave, Boise, ID, 83705, 208-991-4677,

Brewers Haven, 1311 12th Ave. Rd, Nampa, ID, 83705, 208-461-3172,

Home Brew Stuff, 9115 W Chinden Blvd, #105, Garden City, ID, 83714, 208-375-2559,

MakeWine MakeBeer, 9424 N. Government Way, Hayden, ID, 208-762-2550,

Twin Fools Brew Shoppe, 157 2nd Ave. W, Twin Falls, ID,


Brew & Grow, 3625 N Kedzie Ave, Chicago, IL, 60618, 773-463-7430,

Brew & Grow, 176 W Terra Cotta Ave, Ste. A, Crystal Lake, IL 60014,  815-301-4940,

Brew & Grow, 359 W Irving Park Rd., Roselle, IL 60172, 630-894-4885,

Brew & Grow, 3224 S. Alpine Rd, Rockford, IL, 61109, 815-874-5700,

Brew & Grow, 19S Morgan St., Chicago.IL 60607, 312-243-0005,

Brew & Grow, 181 W. Crossroads Parkway, Bolingbrook, IL, 60440, 262-717-0666,

Chicago Brew Werks, 14903 S Center Street, Unit 107, Plainsfield, IL 60544,

Perfect Brewing Supply, 619 E. Park Ave., Libertyville, IL, 60048, 847-816-7055,

U-Brew, 1525 3rd Ave A, Moline, IL, 61265, 309-524-5219,


Brew-By-U, 3021 Meridian Meadows Road, Greenwood, IN 46142,

Great Fermentations of Indiana, 5127 E. 65th Street, Indianapolis, IN,  317-257-9463,

Great Fermentations West, 7900 E US Highway 36, Avon, IN,  317-268-6776,


Camp McClellan Cellars, 2302 E. 11th Street, Davenport, IA, 52803, 319-322-2100,


LA Homebrew, 7987 Pecue Lane, Suite 7-G, Baton Rouge, LA, 70809, 225-773-9128,


The Hop Shop, 59 Portland Road (Rt. 100), Gray, ME, 207-657-5550,

Maine Brewing Supplies, 542 Forest Ave, Portland, ME, 04101, 207-791-2739,

Mainiac Brewing & Supply, LLC, 325 Water Street, Gardiner, ME,207-588-2337,


The Hombrew Cellar, 815 Matthew Street, Aberdeen, MD, 21001, 206-365-7660,


Adega Beer & Wine Makin Supplies, 151B State Rd, Westport, MA, 02790, 774-319-5454,

Beer & Winemaking, 154 King Street, Northhampton, MA, 01060, 413-586-0150,

Beer & Wine Hobby, 155 New Boston St., Unit T, Woburn, MA, 01801, 781-933-8818,

Cape Cod Homebrew Supply, 1336 Phinney’s Lane, Hyannis, MA, 508-790-4200,

NFG Homebrew Supplies, 72 Summer Street, Leominster, MA, 978-840-1955,

Modern Homebrew Emporium, 2304 Massachusetts Ave, Cambridge, MA 02140, 617-498-0400,

Tamarack Wines & Spirits, 157 Bedford St., Lakeville, MA, 02347, 508-947-6922,

South Shore Homebrew Emporium, 58 Randolph St., Weymouth, MA, 02190, 781-340-2739,

The Hoppy Brewer, 1182 S Main St., Attleboro, MA, 02703, 508-223-4677,

Wapole Wines & Spirits, 669 Main Street, Wapole, MA, 02081, 503-668-3338,

West Boylston Homebrew Emporium 45 Sterling Street, West Boylston, MA, 01583, 508-835-3374,


Michigan Brew Supply, 126 Townsend Street, Midland MI, 48640, 989-486-9265,

O’Connor’s, 619 Lyon St NE, Grand Rapids, MI, 49503, 616-635-2088,

The Red Salamander, 205 N. Bridge Street, Grand Ledge, MI, 517-627-2012,


Brew and Grow, 8302 Highway, 65, Spring Lake Park, MN, 55432, 763-780-8191,

Midwest Supplies, 5825 Excelsior Blvd, Minneapolis, MN  55416, 952-925-9854,

Northern Brewer Ltd., 1150 Grand Avenue, St. Paul, MN,  651-291-8849,

Still-H2O Inc, Home Brewing, 1266 W. Frontage Road, Stillwater, MN 651-351-2988,


Apex Brew Wares, 4380 S Noland Road, Independence, MO 64055, 816-313-5039,

The Home Brewery, 1967 W Boat Street, Ozark, MO,  65721, 800-321-2739,


Hobby Home Brew, Oxford, MS,

North Carolina

Alternative Beverage, 1500 River Dr., #104, Belmont, NC, 28012, 704-527-2337,

American Brewmaster, 3021-5 Stony Brook Dr. Raleigh, NC 27604, 919-850-0095,

Asheville Brewers Supply, 712-B, Asheville, NC, 28804, 828-358-3536,

Atlantic Brew Supply, 3709 Neil St., Raleigh, NC, 27607, 919-400-9087,

Bull City Homebrew, 1906 E Nc Highway 54, Ste 200B, Durham, NC, 27713,

Grapestompers, 102 Thistle Meadow, Laural Springs, NC, 28644, 413-803-9850,


Brew Bums, 610 Main Street, Ansley, NE, 303-935-9121,

Patriot Homebrew Supply, 2929 N 204th Street, #107, Omaha, NE, 68022, 402-991-6655,

New Hampshire

The Homebrew Barn, 861 Lafayette Rd. #6, NH 03841, 603-601-2548, 603-601-2548,

Jasper’s Homebrew & Winemaking, 522 Amherst St, # 17,  Nashua, NH, 03063, 603-881-3052,

Kettle to Keg, 123 Main Street, Suncook, NH 03272, 603-485-2054,

New Jersey

The Thirsty Quaker, 492 Monmouth St., Jersey City, NJ, 07302, 201-659-2304,

New Mexico

The Grain Hopper, 4116 Jackie Rd., Suite 104, Rio Rancho, NM, 87124, 505-859-7606,

Victor’s Home Brew, 2436 San Mateo Place NE, Albuquerque, NM, 87110, 505-883-0000,


BrewChatter,  1275 Kleppee, Unit 21, Sparks, NV, 89431, 775-358-0477,

The Reno Homebrewer, 2235-A Dickerson Road, Reno, NV, 775-329-2537,

New York

Arbor Wine and Beer Making, 184 Islip Ave, Islip, NY 11751, 631-277-3004,

Brewshop@Cornell’s, 310 White Plains Road, Eastchester, NY 10709, 914-961-2400,

Brew It!, 346 Route 202, Somers, NY, 10589, 914-617-8339,

Homebrew Emporium, 470 North Greenbush Rd., Rensselaer, NY, 12144, 518-283-7406,

Homebrew & Handgrenades, 2378 Grand Avenue, Baldwin, NY, 11510, 516-223-9300,

Karp's Homebrew Shop, 2 Larkfield Road, East Northport, NY, 631-261-1235,

KegWorks, 1460 Military Road, Buffalo, NY, 14217, 716-856-9675,

Pantano’s Wines Grapes & Homebrews, 249 Rt. 32 South, New Paltz, NY, 12561, 845-255-5201,

Saratoga Zymurgist, 112 Excelsior Avenue, Saratoga Springs, NY 12866, 518-580-9785,

Sunset Hydroponics & Homebrewing, 133 Balta Drive, Henrietta, NY, 585-475-0011,

Sunset Hydroponics & Home Brewing, 1590 W Ridge Road, Rochester, NY, 14615, 585-323-2180,

Sunset Hydroponics & Homebrewing, 3530 Erie Blvd, East Syracuse, NY, 315-446-5208,

Sunset Hydroponics & Homebrewing, 40 Cobblestone Court Drive, Victor, NY, 585-223-3410,

Westchester Homebrew Emporium, 550 North Ave, New Rochelle, NY, 10801, 914-6374-2337,

North Carolina

Bull City Homebrew, 1906 E NC54, Suite 200B, Durham, NC 27713, 919-682-3000,

Atlantic Brew Supply Contract, 3709 Neil Street, Raleigh, NC, 27607, 919-400-9087,

North Dakota


The Grape and Granary, 945 Home Avenue, Akron, OH, 800-695-9870,

The Hops Shack, 119 W Rensselaer St, Bucyrus, OH, 44820, 419-617-7770,

Osborn Brewing Company, 820 Lebanons Street, Suite A, Monroe, OH, 513-360-0076,


High Gravity, 7142 S Memorial Dr, Tulsa, OK, 74133, 918-461-2605,


Brews Brothers Homebrew Products, 2020 NW Aloclek Drive, Suite 107, Hillsboro, OR 97124, 888-528-8443,

Falling Sky Brewing, 30 East 13th Avenue, Eugene, OR, 97401, 541-484-3322,

F.H. Steinbart, 234 SE 12th, Portland, OR, 97214, 503-232-8793,

Harvest, 501 NW Douglas Blvd., Winston, OR, 97496, 541-679-4524, http://www.harveststore.bizs

Home Fermenter Center, 123 Monroe Street, Eugene, OR, 97402, 541-485-6238,

Keller’s Brew Supply, 1800 W 10th St., #3, The Dalles, OR, 97058, 541-296-2288,

Mainbrew Beer, Kegs and Homebrew Supplies 23596 NW Clara Lane, Hillsboro, OR, 97124, 503-648-4254,

Winemakers Depot, Internet Only, Olympia, WA,


Home Sweet Homebrew, 2008 Sansom Street, Philadelphia, PA, 215-569-9469,

Keystone Homebrew Supply, 435 Doylestown Road, Montgomeryville, PA 18936, 215-855-0100,

Keystone Homebrew Supply, 128 East Third Street, Bethlehem, PA 18015, 610-997-0911,

Wine Barley & Hops Homebrew, 248 Busleton Pike, Feasterville, PA 19053, 215-322-4780,

Rhode Island

South Carolina

Bet-Mar Liquid Hobby Shop, 736-F Saint Andrews Road, Columbia, SC, 29210, 803-798-2033,

Grapes and Grains, 104 Mauldin Rd., Suite A, Greenville, SC 29605, 864-236-5676,

Yeast Everything Homebrew, 557 Belle Station Blvd, Mount Pleasant, SC, 29464, 813-971-7122,


Rebel Brewer, 105 Space Park North, Goodlettsville, TN, 37072, 615-859-2188,



Brewhound, 8808 Camp Bowie, #160, Ft. Worth, TX, 76116, 817-615-9551,

Dallas Homebrew, 1500 N Interstate 35e, Ste 116, Carrolton, TX, 75006, 866-417-1114,

Homebrew Supply, 130 East San Antonio, San Marcos, TX, 78666, 877-800-2294,

The Winemaker’s Toy Store and Dallas Home Brew, 1500 Interstate 35E, Suite 116, Carrolton, TX, 75006, 972-323-7921,

Yellow House Canyon Brewworks,  6001 North University, Lubbock, TX 79415, 806-744-1917,


Ogden City Brew Supply, 2269 Grant Avenue, Ogden, UT, 84401, 385-238-4995,

River City Homebrew, 15 West Maine Street, Richmond, UT, 84333, 435-258-5118,

Salt Lake Brew Supply, 723 E. Ft Union Blvd, Midvale, UT, 84047, 801-849-0955,

The Beer Nut, Inc., 1200 S. State, Salt Lake City, UT, 84111, 801-531-8182,


My Local Homebrew Shop, 6201 Leesburg Pike, Ste 3, Falls Church, VA, 20444, 703-241-3874,

The Brew Shop, 4413 Lafayette Boulevard, Fredericks, VA, 540-891-6200,

Wine and Cake Hobbies, 6527 Tidewater Drive, Norfolk, VA, 23509,



Bader Beer & Wine Supply, Inc., 711 Grand Blvd., Vancouver, WA, 360-750-1551,

Homebrew Heaven, 9109 Evergreen Way, Everett, WA, 425-355-8865,

Mash Brew Supply, 2714 N. 21st St, Tacoma, WA, 253-579-4908,

Mountain Homebrew and Wine Supply, 8530 122nd Ave, Ste. B2, Kirkland, WA 98033, 425-803-3996,

RockyTop Homebrew Supplies, 3533 Mud Bay Road SW, Olympia, WA, 360-956-9160,

Sound Homebrew Supply, 6505 5th Place S, Seattle , WA, 98108,

Cellar Homebrew, 14320 Greenwood Ave N, Seattle WA, 800-342-1871,

Yakima Valley Hops LLC, 702 N. 1st Ave, Suite D, Yakima, WA, 98902, 208-649-4677,


Brew and Grow, 1525 Williamson St., Madison, WI, 53703, 608-226-8910,

Brew and Grow, 2246 W Bluemound Rd, Ste B, Waukesha, WI, 53186, 262-789-0555,

Grain Days Home Brew Supply,

Northern Brewer, 1306 S 108th St., Milwaukee, WI, 53214, 414-935-4099,

RiteBrew, 1700 Lamers Drive, Little Chute, WI, 54140, 920-687-2533,

WindRiver Brewing Company, 861 10th Ave., Barron, WI, 800-266-4677,


Fermometers are available from the following wholesalers

   BSG Handcraft, Atlanta, GA                           

    BSG Handcraft, San Leandro, CA                  

    BSG Handcraft, Providence, RI,                     

    Brewmaster, San Leandro, CA                       



Zymurgy Product Review - Spring' 94

As we are all aware, temperature always affects our moods. Likewise, it is no surprise that the mood of one of our dearest expressions of creativeness, homebrew, is linked to temperature. Alas, there is now available the Fermometer, a mood ring for your wort. The Fermometer is an economical alternative to the traditional immersion thermometer during the fermentation stage. It is a flexible liquid crystal thermometer designed to stick to the outside of the fermentation vessel with a self adhesive backing.

The Fermometer provides continual monitoring to signal the time for pitching and is a tireless sentry of temperature during fermentation. This eliminates the sanitation blues and the threat of contamination associated with the more traditional immersion thermometer. It also eliminates the nagging question, "Is it time to pitch yeast yet?", and sends packing the faith brewers who must do a laying of hands on the wort.

The temperature range of 36 to 78 degrees F is in two degree increments. Color changes ingeniously designed into the liquid crystal allow actual one-degree increment readings. It also displays range bars for suggested fermentation temperatures of lagers and ales.

The manufacturer's suggested retail price is $3.50. This makes the Fermometer an economical and fun way to prevent off-flavors and reduce the risk of contamination - a definite mood enhancer. The Fermometer is available at homebrew supply shops. For more information write Tkach Enterprises, P.O. Box 344, Castle Rock, CO 80104, or call 303-660-2297.

Reviewed by Ross Libenson, a brewphile

Yankee Beer News: February/March 1997

Easy Monitoring of Wort Temperature with the Fermometer

The Fermometer, Tkach Enterprises, POB 344, Castle Rock, CO 80104, 303-660-2297, $1.50-$2.50

The Fermometer is a paper thin liquid crystal thermometer that attaches to the outside of a fermenter with a self-adhesive backing. Measuring 1" x 8", the Fermometer has a temperature range of 36 to 78 degrees Fahrenheit measured in two-degree increments. Tan, blue and green colors highlight the current temperature. Depending on the color changes between each liquid crystal, temperature increments of one degree can be determined. Suggested fermentation temperature ranges for lagers and ales are also printed on the strip.

The Fermometer is water resistant, so it can be left on the fermenter during cleaning. Steve Tkach, developer of the Fermometer, designed the device to monitor wort temperatures for yeast pitching and during fermentation. The Fermometer also eliminates the risk of contamination from using a traditional immersion thermometer.

Homebrewing Corner - By Gregg Glaser, Yankee Brew News Staff