Reduced-Sugar Ice Cream Sweetener Testing Scorecard

Keep a separate result for each part of the test

The illustration separates taste, air incorporation, ice observations, hardness and melting because a sweetness match cannot settle all those results. Its A/B/C labels, colors, heart and ticks represent comparison tasks, not approved recipes, rankings or measured performance. The -18°C display and day 0/14/35 calendar are scene examples, not a validated storage or serving protocol for your product.

Start with a real control

Keep the current formula or full-sugar control, the same base temperature, freezing route, hardening condition, package and serving temperature. Add a sweetness-only candidate and a system candidate that also addresses solids, body or viscosity. Without the control, a softer sample can look better simply because the process changed.

Compare routes that answer different questions

Keep each candidate tied to the same control and name every change. The routes below are options for the trial decision, not a requirement to make three production batches. State whether the addition was held fixed or sweetness was matched.

Record the mix before freezing

Keep product type, fat/protein, solids and their measurement basis, acidity where relevant, ageing condition and stabilizer/emulsifier system with the sample code. Record apparent mix viscosity at its actual temperature and instrument/shear conditions. A liquid mix reading and the viscosity of an unfrozen serum phase are different measurements; do not infer one directly from the other. Dairy ice cream, sorbet and plant-based mixes need targets tied to their own structures.

Separate sweetness from frozen structure

Taste sweetness onset, peak, aftertaste, bitterness, cooling effect and flavour release separately from hardness, iciness, graininess, creaminess, scoopability and mouth-coating. A high-intensity sweetener may restore perceived sweetness without restoring the grams of solids removed with sugar.

Use a record that keeps method and condition visible

Choose the measurements needed for the project. Keep raw observations and unit identities before summarizing them, and mark unmeasured items as missing. Hardness, a spoon observation, ice sensation and a photograph each provide different information.

Keep the model research within its actual scope

Wang, Sala and Scholten's model work separated ice content and serum-phase viscosity: hardness was related to both, while melting duration and onset did not follow identical relationships. Their later simplified systems held serum-phase viscosity constant while varying crystal radius and found that smaller, more connected ice crystals could give a harder structure. These findings explain why the record needs separate measurements; they do not rank commercial sweeteners or predict a finished dairy, sorbet or plant-based recipe.

• Original model study: ice content, serum viscosity, hardness and melting
• Original simplified model: crystal size and connectivity

Measure overrun with the right reference mass

For the same filled volume, overrun (%) = (net mix mass / net frozen-sample mass - 1) × 100. Subtract the corresponding cup tare from each gross weight and use the actual mix for each candidate. Keep volumes, sampling and weighing comparable within the pair. Overrun describes volume increase relative to the mix; it is not the percentage of air in the finished product. University of Guelph's method uses equal-volume weights and warns that particulates affect package weight as well as air content. A fruit-, nut- or chocolate-piece product therefore needs an appropriate sampling method; the simple cup result should not be used to rank such products without that review. The existing controlled-trial guide gives worked examples, so they are not repeated here.

• University of Guelph: overrun calculation and particulate limits
• Read the existing controlled ice cream trial and worked examples

Download the comparison and overrun workbook

Download the Excel file directly without leaving an email address. It calculates the control and candidate separately from their own cup volumes, tare and gross weights, then provides 15 paired record fields for the base, process, hardness, ice observations, melting, sensory notes, storage and next decision. Use one copy for one comparison at one actual checkpoint. The yellow inputs start blank. Missing inputs leave the overrun result blank; unequal or nonpositive cup volumes prompt a volume check, and nonpositive net masses prompt a weight check. A correctly entered zero tare and a genuine 0% overrun remain valid. The workbook does not calculate an overall quality score or approve a formula.

• Download the free frozen-dessert comparison and overrun calculator (.xlsx)

Repeat the relevant checks after storage

Define the baseline after the agreed freezing/hardening sequence and select checkpoints for the product, package and project question. Record actual elapsed time, temperatures and any excursion or freeze-thaw history. Keep unopened units separate from those already opened, scooped or tasted; use separate matched units for destructive unopened checks. Repeat the relevant physical and sensory observations with the same definitions and serving conditions. A completed checkpoint is a result at those conditions, not a general shelf-life or food-safety decision.

Turn the result into a specific sample discussion

Start with the frozen-dessert type, final market and the main taste or texture problem. Add the base, control/candidate observations, process and conditions you already know. Clarify the next change to test before settling specifications, packaging, quantities and documents. You can contact Hengliyuan before the trial sheet or the purchasing brief is complete.

Common questions