{"title":"Thermometers","description":"\u003cp\u003eMost dedicated home roasting appliances come with a built-in thermometer, though usually that reading is taken inside the bean chamber, not in the coffee itself. If you really want to know what is happening to the roast, having a thermometer is the bean mass is key. It is not essential, because over time you can learn to use your five senses to tell what is happening to the roast, but having a temperature reading can help you tremendously. The stick thermometers are useful in some applications (hot air poppers, and stovetop); the digital thermometers with flexible temperature probes are handy in many situations.\u003c\/p\u003e","products":[{"product_id":"coffee-roasting-accessories-pocket-type-thermometer","title":"Pocket-type Thermometer 50-550","description":"\u003cstyle\u003e#html-body [data-pb-style=ECS7P3A]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll;border-style:none;border-width:1px;border-radius:0;margin:0 0 10px;padding:10px}#html-body [data-pb-style=J2SP7L7]{border-style:none;border-width:1px;border-radius:0;margin:0;padding:0}\u003c\/style\u003e\u003cdiv data-content-type=\"row\" data-appearance=\"contained\" data-element=\"main\"\u003e\u003cdiv data-enable-parallax=\"0\" data-parallax-speed=\"0.5\" data-background-images=\"{}\" data-video-fallback-src=\"\" data-element=\"inner\" data-pb-style=\"ECS7P3A\"\u003e\u003cdiv data-content-type=\"text\" data-appearance=\"default\" data-element=\"main\" data-pb-style=\"J2SP7L7\"\u003e\u003cp\u003eThis is a pocket-type instant read thermometer that has a 0-550 degree range. It is a low-cost alternative to $20-$40 thermometers that will read temperatures in this range, required for monitoring coffee roasting. The face cover is polycarbonate, but as long as the shaft is exposed to the high heat and the face is not it will be fine. The shaft is stainless steel.\u003cbr\u003e\u003cbr\u003eYou can calibrate this thermometer by turning the nut on the stem (calibrate by putting the stem into boiling water, which is 212 degrees F at sea level). You might want to calibrate it even before its first use, since vibration in shipping can affect the setting. The dial face is just over an inch, quite small, but it does have a magnifying lens to make it a little easier to read. The 5 inch shaft works very well for dropping into stovetop poppers, or most air roasters and air poppers. And hey, it costs five bucks! It has no clip besides a little pocket clip ... I made an \u003ca title=\"Thermometer Clip Instructions\" href=\"https:\/\/library.sweetmarias.com\/thermo_images\/thermo.how.to.install\" target=\"_blank\" rel=\"noopener\"\u003einstruction page\u003c\/a\u003e for this simple process or making one.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Sweet Maria's","offers":[{"title":"Default Title","offer_id":46204988489878,"sku":"MISC-THRM-0232","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/1518\/0182\/files\/550-degree-thermometer-7.jpg?v=1769166822"},{"product_id":"k-type-thermocouple","title":"Bare K-Type Thermocouple","description":"\u003cstyle\u003e#html-body [data-pb-style=J04DC9W]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll;border-style:none;border-width:1px;border-radius:0;margin:0 0 10px;padding:10px}#html-body [data-pb-style=FF1Y2FU]{border-style:none;border-width:1px;border-radius:0;margin:0;padding:0}\u003c\/style\u003e\u003cdiv data-content-type=\"row\" data-appearance=\"contained\" data-element=\"main\"\u003e\u003cdiv data-enable-parallax=\"0\" data-parallax-speed=\"0.5\" data-background-images=\"{}\" data-video-fallback-src=\"\" data-element=\"inner\" data-pb-style=\"J04DC9W\"\u003e\u003cdiv data-content-type=\"text\" data-appearance=\"default\" data-element=\"main\" data-pb-style=\"FF1Y2FU\"\u003e\n\u003cp\u003eThese are standard, inexpensive “naked” thermocouples, meaning the end has bare wires with an exposed bead. We prefer this style of thermocouple because they are so responsive, whereas some fancier probes with the thermoprobe Inside a metal casing are much less responsive to temperature change. We use this type of probe on our sample roasters, test roasting equipment, and our 12kg drum roaster too. However, these raw wire probes will not last as long as rigid probes in a metal casing. \u003c\/p\u003e\n\u003cp\u003eThis thermocouple wire cable is 36 inches long. The length of wire is coated in a heat resistant shielding. It is possible to get the wire to fail or melt so be careful what it comes in contact with. Make sure just the end of the wire is touching the bean mass to get a proper reading and to ensure long life of the thermoprobe.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Sweet Maria's","offers":[{"title":"Default Title","offer_id":46205055271062,"sku":"PART-KYPE-0373","price":4.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/1518\/0182\/files\/thermocouple_basic_bare_type_36_inch.jpg?v=1769169054"},{"product_id":"ss-rigid-thermocouple","title":"Stainless Steel Rigid Thermocouple 50mm","description":"\u003cdiv data-content-type=\"row\" data-appearance=\"contained\" data-element=\"main\"\u003e\u003cdiv data-enable-parallax=\"0\" data-parallax-speed=\"0.5\" data-background-images=\"{}\" data-element=\"inner\" data-pb-style=\"60C978E8682E8\"\u003e\u003cdiv data-content-type=\"text\" data-appearance=\"default\" data-element=\"main\" data-pb-style=\"60C978E8682FA\"\u003eThis is the replacement thermocouple for the digital thermometer we sell. It would likely work with other thermometers that use a K-type probe as well. The end of the probe on our digital thermometer is worn through the protective coating - but it seems to still be working fine. So I am not sure you need to replace it just because the wire is bare. If you are getting strange readings (if say when you check the temperature of boiling water), then a replacement is likely in order.\u003cbr\u003e\u003cbr\u003e\r\nNOTE: the wire is rated up to 480 degrees, plenty of room to watch coffee go from 1st to 2nd to ... too much.\u003cbr\u003e\u003cbr\u003e\r\nIt is possible to get the wire to fail or melt so be careful what it comes in contact with. Make sure just the end of the wire is touching the bean mass to get a proper reading and to ensure long life of the thermoprobe.\u003cbr\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cstyle\u003e#html-body [data-pb-style=\"60C978E8682E8\"]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;}#html-body [data-pb-style=\"60C978E8682FA\"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}\u003c\/style\u003e","brand":"Sweet Maria's","offers":[{"title":"Default Title","offer_id":46205059006614,"sku":"PART-THRM-0399","price":8.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/1518\/0182\/files\/rigid_ss_thermocouple_sweet_marias-2.jpg?v=1769169202"},{"product_id":"basic-celsius-thermometer-with-thermocouple","title":"Basic Celsius Thermometer with Thermocouple","description":"\u003cstyle\u003e#html-body [data-pb-style=RYXKIRD]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}\u003c\/style\u003e\u003cdiv data-content-type=\"row\" data-appearance=\"contained\" data-element=\"main\"\u003e\u003cdiv data-enable-parallax=\"0\" data-parallax-speed=\"0.5\" data-background-images=\"{}\" data-background-type=\"image\" data-video-loop=\"true\" data-video-play-only-visible=\"true\" data-video-lazy-load=\"true\" data-video-fallback-src=\"\" data-element=\"inner\" data-pb-style=\"RYXKIRD\"\u003e\u003cdiv data-content-type=\"text\" data-appearance=\"default\" data-element=\"main\"\u003e\n\u003cp\u003eKnowing the temperature of your roast is a key to greater repeatability of your roast profile. Whether you are able to measure bean temperature, or hot air temperature, you can use a basic thermometer\/thermocouple probe to make notes and, ideally, reproduce roast results. With the low price of this unit, it’s a great low cost way to add temperature measurement to your roast method. \u003c\/p\u003e\n\u003cp\u003eBut … and this is a big but (lol), \u003cem\u003ethis only reads in Celsius scale\u003c\/em\u003e, so you need to put on your metric hat to use it. (Yes I tried, they don’t make a Fahrenheit version). See our other thermometer option for a Farenhiet unit (related product below).\u003c\/p\u003e\n\u003cp\u003eA flexible thermocouple can be added to everything from a popcorn popper, to a Behmor to a Freshroast. Exactly how you do that, and whether you will be able to probe the beans directly, or the ambient roast chamber temperature is something to figure out though! Also, a probe needs to be fixed in position - if it moves around when roasting it’s not going to be accurate. \u003c\/p\u003e\n\u003cp\u003eCelsius Readings Only:  \u003cem\u003eCelsius- Metric - Eurostyle - No Farenheit! Got it?\u003c\/em\u003e\u003cbr\u003eSize: 25 x 70 x 105 mm\u003cbr\u003ePower: 2 AAA batteries, Included\u003cbr\u003eMeasurement range :-50℃~1300℃ , Resolution: 1 ° C\u003cbr\u003eThermocouple probe included\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Sweet Maria's","offers":[{"title":"Default Title","offer_id":46205086761110,"sku":"THMO-BUDG-0451","price":5.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/1518\/0182\/files\/basic-celsius-thermometer-with-thermocouple-13.jpg?v=1769170278"},{"product_id":"quest-compatible-thermal-probe","title":"Quest-Compatible Thermocouple Probe 38mm","description":"\u003cstyle\u003e#html-body [data-pb-style=RGLADB9]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}\u003c\/style\u003e\u003cdiv data-content-type=\"row\" data-appearance=\"contained\" data-element=\"main\"\u003e\u003cdiv data-enable-parallax=\"0\" data-parallax-speed=\"0.5\" data-background-images=\"{}\" data-background-type=\"image\" data-video-loop=\"true\" data-video-play-only-visible=\"true\" data-video-lazy-load=\"true\" data-video-fallback-src=\"\" data-element=\"inner\" data-pb-style=\"RGLADB9\"\u003e\u003cdiv data-content-type=\"text\" data-appearance=\"default\" data-element=\"main\"\u003e\n\u003cp\u003eWe had a new thermometer probe made that is compatible with the \u003ca tabindex=\"0\" href=\"https:\/\/www.coffeeshrub.com\/the-quest-m3s-coffee-roaster.html\" target=\"_blank\" rel=\"noopener\"\u003eQuest M3s\u003c\/a\u003e and \u003ca href=\"https:\/\/www.coffeeshrub.com\/quest-m6-coffee-roaster.html\" target=\"_blank\" rel=\"noopener\"\u003eM6\u003c\/a\u003e coffee roasters (as well as other roast applications too). It features a 38 mm long probe with threaded M8 metric which will work with the Quest models.\u003c\/p\u003e\n\u003cp\u003eWe opted for a slender probe tip here, only 2 mm, which makes it very sensitive to temperature change. It’s a bit delicate, but will respond quickly to changes … and that’s what we wanted! The cable connects to a standard mini plug that will work with your standard thermometers, including the types we sell.\u003c\/p\u003e\n\u003cp\u003eThe cable is a rather short 3 feet, but we keep finding ourselves coiling up longer cables so wanted to opt for a short one here. This isn’t a high-end Fluke quality probe, but it’s also not $50 ! For that kind of money,  you can buy 6 of these to last a long, long time.\u003c\/p\u003e\n\u003cp\u003eWe'll also note that in some positions the nut on this probe can prevent the bean door from opening fully. Rotating the nut slightly works for us, so it's not been an issue (but it's worth mentioning). You can always add another nut as a spacer.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Sweet Maria's","offers":[{"title":"Default Title","offer_id":46205093838998,"sku":"MISC-QTHR-0468","price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/1518\/0182\/files\/sm-quest-thermal-probe-1.jpg?v=1769170553"},{"product_id":"dual-probe-thermopro-thermometer","title":"Dual Probe ThermoPro Thermometer","description":"\u003cstyle\u003e#html-body [data-pb-style=E8OUFI9]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}\u003c\/style\u003e\u003cdiv data-content-type=\"row\" data-appearance=\"contained\" data-element=\"main\"\u003e\u003cdiv data-enable-parallax=\"0\" data-parallax-speed=\"0.5\" data-background-images=\"{}\" data-background-type=\"image\" data-video-loop=\"true\" data-video-play-only-visible=\"true\" data-video-lazy-load=\"true\" data-video-fallback-src=\"\" data-element=\"inner\" data-pb-style=\"E8OUFI9\"\u003e\u003cdiv data-content-type=\"text\" data-appearance=\"default\" data-element=\"main\"\u003e\n\u003cp\u003eAdding a thermometer to your coffee roaster is a great DIY hack. Having 2 probes allows you to (for example) have one directly probing the mass of roasting coffee beans, and the other to check the roast chamber air temperature (or input air temp ... or output air temp etc). This is similar to how commercial roasters check coffee roasting temperatures, by comparing and monitoring bean temperature, to \"environmental temperature\".\u003c\/p\u003e\n\u003cp\u003eExactly how you want to use the ThermoPro, and how you will install it, is going to be up to you. But when we were checking out options for a thermometer that can measure 2 temperature points at once, it was a meat thermometer that stole the show. ThermoPro has great reviews, and the temperature range it can measure works great for coffee roasting. The 15 cm long metal probes are less sensitive than raw thermocouple beads, but are easier to postion and last longer! It's a well-built device, and the AAA battery is included to boot. (Remember to peel the plastic wrap off the batter first though!)\u003c\/p\u003e\n\u003cp\u003eFor more details, tips and images see our \u003ca tabindex=\"0\" href=\"https:\/\/library.sweetmarias.com\/thermopro-thermometer-for-home-coffee-roasting-not-meat\/\" target=\"_blank\" rel=\"noopener\"\u003eThermoPro Thermometer page on our Coffee Library site\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Sweet Maria's","offers":[{"title":"Default Title","offer_id":46205117268118,"sku":"MISC-THRM-0500","price":21.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/1518\/0182\/files\/thermopro-thermometer-sweet-marias-14.jpg?v=1778224905"}],"url":"https:\/\/www.sweetmarias.com\/collections\/thermometers.oembed","provider":"Sweet Maria's","version":"1.0","type":"link"}