So a note on this that no one has discussed, it’s not always about the housing. I’ve been through two metal immersion blenders that I was assured were fine for hot foods and both were ruined due to the lubricant in the blade mechanism not being suitable for heat. This meant the oil leached out and the mechanics ceased. Before that happened, food started to taste chemical metallic, and I noticed after cleaning a dark liquid would appear on the surface I had it placed on where it was draining/drying. Spend the money, get a pro immersion blender. I’m still looking for the best one. My suggestion in the interim with plastic or metal is to plan ahead so you can allow your foods to cool first. Then re-heat food before serving.