Originally Posted by zach1288
Will the water in the tub be similar in temperature to the wort in the fermenter?
The water bath serves to temper the temperature swings caused by the increases from active fermentation and the decreases from the environment. They will not be the same. The fermenter will almost always be warmer. One quick way to drop the temps is to put the fermenter on a concrete basement floor. The concrete serves as a heat sink and pulls heat out of the fermenter. If you want a good idea of where your temps are, try inserting a sanitized thermometer into the top of the bucket and take a reading periodically.