How to Choose Between Single Wall vs Double Wall Cups

Beverage brands have to deal with one of the problems of choosing between single-wall and double-wall cups. Apart from the difference in cost and durability, there are several other things that make them different from each other. Single-walled paper cups are made of a single layer of paperboard that is coated with an appropriate coating. This paper cup is the cheapest and transfers heat directly to the holding hand. For single-walled paper cups, a sleeve is required to hold hot beverages. 

On the other hand, double-walled paper cups have two paper boards with a trapped air gap between the two. These paper cups measurably lower the exterior surface temperature of the cups and remove the need for a sleeve at a higher material cost. Ripple-walled cup is a third option that has features that sit between the single- and double-walled paper cups. At the time of paper cup selection based on your beverage type, you must consider these options as well. The core difference between the three cup types is as follows: 

What Each Cup Is Actually Made Of

Though all the paper cups are manufactured with the same type of raw material, the number of layers and GSM of the paper change based on the number of layers. Below is a brief elaboration of paper cup walls:  

Single Wall

This paper is manufactured with a single layer of paper that is coated with a thin layer of polyethylene or some bioplastics. The application of coatings is to prevent liquid from soaking into the fibre. Due to single-layer heat transmission from the internal layer to the external layer. That is why single wall paper cups are either used for cold beverages or paired with corrugated sleeves for hot beverages. 

Double Wall

This paper cup is manufactured with two layers of material and has an inner air gap between the two layers. Air is a poor conductor of heat and gives exceptional insulation against hot or warm beverages. The outer layer of double wall paper cups folds or knurls at the base. This leaves the gap open rather than sealed solid. 

Paper Cup GSM 

Paper cup weight is measured in GSM, which is a standardized measuring unit like Paper cup weight is measured in GSM, which is a standardized measuring unit like ISO 536 and TAPPI T 410. GSM is mass per unit area of the material and is not a direct measure of thickness. It also does not tell about the insulation and stiffness of the material. Two materials of the same GSM may have a different calliper, that is: 

• Physical thickness
• Measured separately under ISO 534

This difference is based on how densely the fibre is packed. In double-walled paper cups, a paperboard of 210 GSM or heavier is used. On the other hand, the GSM ins angel walled paper cup is 130 or above. The main difference is not just because of the GSM but also due to the number of paperboard layers and the air gap between the two layers. 

Measured Thermal Performance

If we compare the external surfaces of the two types of cups independently, we will get an idea whether the cup is comfortable for human holding or not. See the table to know to which extent the temperature of the cup increases when a hot beverage is poured in the cup: 

When it comes to takeaway orders, the use of double-walled paper cups is a better option. This is because custom coffee cups with a single wall cool the hot drink faster than double-walled cups. The exact degree of temperature change is unknown between singe walled cusp vs double-walled cups unless we know the ambient temperature and fill volume. The lid type is also an important factor in determining the degree of change in temperature. 

Cost Comparison

As double-walled paper cups use more material, that is why their cost is high. The exact pricing may vary based on the sizes and add-ons of the cups. If single-walled paper cups are used with sleeves and slides, then their cost may also vary. On the other hand, the cost difference between the two can also be moderate if single-walled cups are premium. Considering that both cups are manufactured with the same add-ons and size, double-walled paper cups are 40 to 60 % higher in price. 

The right comparison for a hot-drink program is not single wall vs. double wall in isolation. It is a single wall with sleeve vs. double wall alone. This is because the sleeve has its own material cost like compostable cups and inventory line with application time. 

If we compare the environmental cost of the two, then we get the following findings mentioned in the table:

How to Choose 

At the time of custom paper cup selection between single-wall cups and double-wall cups, there are several factors you have to consider. Cold drinks can go well in single-walled paper cups. But if you feel that the single-walled cup is not doing great against condensation, then you can go with the double-walled cup. Single-walled is a better option for a short duration. If hot drinks are consumed immediately on the site, then you can go with a single wall with sleeves. For takeaway and delivery, you must select double-walled cups.

Final Words! 

In comparison of single-wall cups vs double-wall cups, we cannot concretely say which one is the best. This is because both are useful for different applications and have their own benefits. At the time of ordering the cups, you must ask your manufacturer all the specifications that you need so that you can select the best. You can book your order at Wax Paper Canada and get the best option at market-competitive rates and with free consultation with the designers.