TempCalc was written with home brewing in mind. During the DIY beer making process, you may have to mix hot water with cold to arrive at a predetermined temperature that is cold enough so it will not kill yeast, yet warm enough to aid fermentation. The calculator can suggest the amount of cold water that must be added to boiling wort. This program was written to aid readers of How To Never Run Out of Beer, the home brewing handbook on Amazon: https://www.amazon.com/How-Never-Run-Out-Beer/dp/B08LNLBY8C/ref=sr_1_1?dchild=1&keywords=Never+run+out+of+beer&qid=1603668816&s=books&sr=1-1 although it can be used for other purposes when liquids of differing temperatures must be mixed.
