No, i use one of these. Cold smoked cheese, salts, tomatoes and onions for salsa. You can use a smoker or grill without needing to have ice trays to keep temps down. Unless it's like it's been here the last few day, of high 90's .
Place smoker tube on bottom of grill or smoker. If you want a heavier smoke keep tube on main or top rack of grill. It works best using a propane torch to get the pellets going. Or a cotton ball soaked in alcohol.
https://www.amazon.com/MAZE-N-OET-00...s%2C250&sr=8-4