Question
What ratio of Propylene Glycol to add to machine tank for freezing ice popsicles?
Answer
Recommended Propylene Glycol to Water Ratio:
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30% Propylene Glycol / 70% Water
🧊 Freezing point: approx. -12°C (10°F)
✅ Best balance between cooling efficiency and freeze protection.
✅ Ideal for typical popsicle machines where freezing temp is just below 0°C.
📌 Why This Ratio Works:
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Too little glycol → poor freeze protection
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Too much glycol → reduced heat transfer efficiency
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30:70 offers optimal thermal conductivity and efficient freezing for food-grade applications.
⚠️ Important:
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Always use USP-grade (food-safe) propylene glycol for food applications.
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Mix thoroughly before filling the machine tank.