How it works
Warmables Thermal Sleeves keep meals warm for 4–6 hours. They are a game changer for people who pack food for health reasons or who need to bring meals due to dietary restrictions such as celiac disease, diabetes, food allergies, or weight loss.
Warming the Heat Packs 🔥
Place the Heat Pack on a paper towel in the microwave. Microwave on a low setting, heating in 30-second intervals. Shake the Heat Pack between each interval and continue warming until it is very warm, not hot.




Using the Thermal Sleeve 🍲
Place the warmed Heat Pack inside the Neoprene Thermal Sleeve for 2–3 minutes, then remove it. Place your hot meal inside the Thermal Sleeve. Reheat the cherry pits as needed and place them back inside the sleeve along with your warm meal to extend heat time.
💡 Tips
• For optimal heat retention up to 6 hours, use a well insulated lunch bag and include a bottle with hot liquid (for adults only).
• Food heated on the stove or in the oven stays warm longer than food heated in the microwave.
• Packing food in a glass or stainless steel container helps keep it warm longer.
• Moist foods like stews, mac’n cheese, or mashed potatoes hold heat better than dry foods.
• Larger portions stay warm longer. Keep food huddled together like penguins. Spreading it out causes heat to escape faster.
• Packing hot and cold items together doesn’t work by nature. Sorry!
⚠️ Caution
DO NOT MICROWAVE THE THERMAL SLEEVE
Avoid overheating the Heat Pack. It is filled with 100% natural cherry pits and may burn or cause damage to your microwave if overheated.
