I am souring a German wheat gose tonight with lactose thats on grains. Was looking for a large enough container to keep the mash at 118 for 48 hours, Could I use my kettle for this or is stainless not an appropriate container It will be wrapped in a blanket and sulifane will seal out oxygen...

5 lbs amercan pale malt 5 lbs white wheat 1 oz cluster 60 min 1 oz cluster 5 min 1 lb sour cherry candy suger 1 1/2 gallons of kombucha (pasturized at 160 for 20 min) added at flame out 2 tsp of fresh ground grains of paradise 5 min amercan wheat yeast (recomend starter) I'm fermenting at...