Check out this site for info on new Texas State laws affecting Cottage Foods industry - http://farmandranchfreedom.org/wp-content/uploads/2013/08/sampling-DSHS-communications-laws-2013-faq.pdf
Texas A&M AgriLife Extension Service in Waller County will be hosting a program on 9/12/13 (Thursday)...
Use a number 3 wash tub (galvanized). Be careful, bottom of it will get black with soot. You can also heat large stones in fire and place in the #3 tub until water reaches desired temp. - that way you don't mess up mama's wash tub.
An ice chest would work as well - but hot water will ruin...