How an Ice Cup Making Machine Controls Ice Thickness and Clarity

At YUMYTH, we have a more complex understanding of an Ice Cup Making Machine. Rather than seeing it as a machine that makes cold water, we see it as a machine that removes heat to make ice. How heat is removed during each freezing cycle determines the thickness, clarity and uniformity of the walls of the ice. Resistance to heat to melt the ice is also determined by how heat is removed during the freezing cycle.

For this reason, the fastest cycle is not always the preferred cycle. A well-designed Ice Cup Making Machine must balance freezing speed with crystal growth, mold temperature, water quality, and the geometry of the ice cup itself.

How an Ice Cup Making Machine Forms an Ice Cup

The freezing process has four distinct steps:

• Water Filling: Water is allowed to fill a portion of the mold.

• Sensible Cooling: The water is cooled to a temperature below its freezing point.

• Phase Change: The water freezes and the latent heat of fusion is removed.

• Ice Release: The molded ice is ejected from the mold.

For continuous operation, a freezing process is typically broken down into four major steps. The second step is often incorrectly associated with completion of freezing.

During the freezing of water, the refrigeration system removes the latent heat of fusion to transform the remaining water to ice. When water is cooled to 0°C, it does not mean that freezing is completed.

Why are the Walls of Ice Cups Not Thicker?

Control Factor	Technical Effect
Freezing time	Gives the freezing front more time to move inward
Mold surface temperature	Influences nucleation and ice-growth rate
Refrigeration capacity	Determines how quickly heat can be extracted
Ice layer thickness	Creates increasing thermal resistance as freezing continues
Mold geometry	Changes heat-flow distance and local cooling intensity
Water temperature	Affects the initial cooling load

Thus, the heat of freezing is transferred through a combination of the mold and the ice wall, and the mold geometry and thickness affects the rate at which heat is transferred. Ice walls can be made thicker, but the growth rate decreases as the heat-transfer path through the existing ice becomes longer.

Why Cycle Time Matters

Our YUMYTH YF1201 Ice Cup Making Machine provides 15-, 30-, 45-, and 60-minute freezing modes.

The machine can produce two ice cups in approximately 15 minutes, while the longer 45–60 minute settings are available when the priority shifts toward clearer and longer-lasting ice.

From an engineering perspective, adjustable timing gives the freezing front more or less time to develop instead of forcing every batch into one fixed thermal cycle.

What Determines Ice Clarity?

Clear ice is mainly a crystal-growth issue.

When water freezes, impurities can be trapped.Some substances can get trapped if freezing happens too quickly.

Opaqueness in ice can occur due to many reasons. Some of them include:

•Limiting the dissolved gases in water before freezing

•Use of purification or some chemical treatments

•Turbidity due to very rapid freezing

•Irregularity in crystal growth due to changes in freezing temperature

•A powerful refrigeration system can help, but ice clarity depends mainly on how the freezing process is controlled.

Longer Freezing Does Not Automatically Mean Clearer Ice

A longer cycle can improve ice development, but clarity still depends on how the freezing process is controlled.

For an Ice Cup Making Machine, we evaluate several variables together:

Freezing time + Water condition + Mold geometry + Cooling stability + Freezing direction

If one variable is poorly controlled, simply extending the cycle may produce thicker ice without significantly improving optical clarity.

Mold Geometry and Heat Transfer Matter

Ice-cup molds have a more complicated thermal profile than conventional solid-cube molds.

Different areas of the mold can experience different heat-transfer rates. If cooling is concentrated too heavily in one zone, the finished ice cup may develop:

•Uneven wall thickness

•Thin upper edges

•Localized stress

•Cracking during release

•Different melting rates around the cup

At YUMYTH, mold design is therefore part of the freezing system itself, not just a way of determining appearance.

The YF1201 supports eight optional modules and multiple ice formats, including tube ice, ice cups, ice cubes, and specialty-shaped ice. This modular approach allows the freezing structure to be adapted to different mold geometries.

Water Quality Is Also a Thermal Issue

Water quality affects more than the appearance of the ice.

Buildup of hard-water minerals results in scale forming on the water circuit. Less heat is transferred by scale compared to metal, and when scale builds up, more thermal resistance forms and freezing consistency is reduced.

For this reason, our YF1201 Ice Cup Making Machine includes a cleaning mode that rinses the internal pipes and water tank with drinking water to help remove residual limescale and impurities.

The machine also supports tap-water or bottled-water connections and includes water-shortage detection with automatic pause protection.

Speed, Thickness, Clarity, or Melting Resistance?

There is no universal "best" cycle.

Priority	Recommended Direction
Faster ice production	Shorter freezing cycle
Thicker walls	Longer controlled freezing
Better clarity	Stable freezing plus suitable water quality
Better melting resistance	More developed ice structure
Consistent shape	Stable cooling and optimized mold geometry

A good Ice Cup Making Machine should provide enough process flexibility to balance these variables rather than optimizing only for speed.

YUMYTH YF1201 Technical Configuration

Our YF1201 combines adjustable freezing control with a compact refrigeration platform:

•Rated power: 240W

•Refrigerant: R290

•Water tank: 1.35L

•Ice modes: 15 / 30 / 45 / 60 minutes

•Standard 24-hour production: 12.6 kg / 27.8 lb

•Ice storage: 12–20 pieces

•Noise level: ≤48 dB

•Materials: ABS, silicone, SUS304

•Dimensions: 382 × 254 × 355 mm

•Water supply: Tap water or bottled water

•Functions: Ice / Clean / Timer

•Ice formats: Tube ice / Ice cup / Ice cubes / Specialty ice

The system also includes a 1–12 hour reservation mode and memory function that recalls the previously used ice-making mode.

Conclusion

The clarity and thickness of ice depends on several different factors. These include the rate at which the machine can transfer heat, how long the machine can hold a temperature, the shape of the mold, the quality of the water, how long the machine can maintain that temperature, and other factors.

The Ice Cup Making Machines manufactured by YUMYTH use modular designs and varying freezing times to give users more control over factors that are otherwise difficult to control. Most of YUMYTH's competitors rely on a single fixed freezing program.

The YF1201 by YUMYTH gives the user control over freezing times, ice modules, and the temperature of the water being used. To learn more about how YUMYTH approaches user control of ice formation,explore the YF1201 to see ice cup making machinery designs and specifics.

FAQs

Q1. What freezing modes does the YUMYTH Ice Cup Making Machine provide?

The YUMYTH YF1201 provides 15-, 30-, 45-, and 60-minute ice-making modes, allowing users to adjust the freezing cycle according to their preferred ice characteristics.

Q2. How quickly can the YUMYTH Ice Cup Making Machine make ice cups?

The YF1201 can produce two ice cups in approximately 15 minutes under its fastest ice-cup mode.

Q3. Can the YUMYTH Ice Cup Making Machine make clearer ice?

The 45- and 60-minute modes provide more time for controlled ice development. Ice clarity also depends on water quality, dissolved air, and freezing conditions.

Q4. What type of refrigerant does the YUMYTH YF1201 use?

The YF1201 uses R290 refrigerant, which is widely used in modern refrigeration systems because of its strong thermodynamic performance and low global warming potential.

Q5. What is the rated power of the YUMYTH Ice Cup Making Machine?

The YUMYTH YF1201 has a rated power of 240W.