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√ ：Simple Operation: Just place the heating pad under your fermenting containers and plug in, no more straps, tapes or glue are needed.
√ ：Ideal sizes: The 12” heating pad is ideal for fermenters in different sizes, with this heating pad, you can precisely control the temperature of your home brew.
√ ：Uniform Heat: The radiate far-infrared heating pad provides gentle and warm heats for the fermentation,
√ ：122℉/50℃: It can be heated up to 122℉/50℃ and raises the temperature by 37.4℉-50℉/3℃-11℃ above the ambient temperature, ideal for home brewing.
√ ：High Quality: The heating pad has adopted high-quality waterproof PVC , shut off automatically if the temp of the pad surface is over 122℉/50℃.
√ ：Safety : The reinforced connection and the internal fire-resistant cotton sheet make the heating pad more durable.
√ ：Certification: MET certificated heating pad &UL listed power cord.
√ ：Waterproof: IP64 waterproof, proofed against splashes, showers and sprays, resistant to abrasion, convenient to clean by rinsing and wiping.
Do you have any recommendations for heating an erlenmeyer flask on a stir plate?
I initiially thought the linked product might work, but after reconsidering, it's likely too thick to use between the sitrplate and the flask.
Would be good to add temp control for yeast starters.