Thickening Calculator

Calculate the amount of thickening product needed to achieve your target IDDSI consistency level.

Thickening Calculator

Thickening Tips

  • Always follow manufacturer instructions - ratios may vary by product
  • Add thickener to liquid, not liquid to thickener
  • Stir vigorously to prevent lumps
  • Allow time for thickening (varies by product type)
  • Gum-based thickeners maintain consistency longer
  • Starch-based thickeners may continue to thicken over time
  • Recheck consistency before serving if liquid has been sitting
  • Hot liquids may thin slightly as they cool
  • Acidic liquids (juice) may require more thickener
  • Carbonated beverages lose fizz when thickened

Product Comparison

ProductTypeLevel 1Level 2Level 3Level 4
Thick-It Originalstarch0.5 tsp/oz1 tsp/oz1.5 tsp/oz2 tsp/oz
Thick-It Clear Advantagegum0.25 tsp/oz0.5 tsp/oz0.75 tsp/oz1 tsp/oz
SimplyThick Easy Mixgum0.25 packet/oz0.5 packet/oz0.75 packet/oz1 packet/oz
Resource ThickenUpstarch0.5 tsp/oz1 tsp/oz1.5 tsp/oz2 tsp/oz
Resource ThickenUp Cleargum0.3 tsp/oz0.6 tsp/oz0.9 tsp/oz1.2 tsp/oz
Hormel Thick & Easystarch0.5 tsp/oz1 tsp/oz1.5 tsp/oz2 tsp/oz