PTPes 30.a:1[2] :דלא מיתן קופייא אילין על אילין‏ : not to put the baskets one on top of the other
See the entire entry for quppā, qoppṯā n.f. sack; basket

PTPes 30.a:1[2] :ירתחן ויחמען ר׳ חיננא‏ : so that they should not become hot and ferment
See the entire entry for rtḥ vb. to be hot; boil over