How to make Rice Drinking Straws at Green Starch J.S.C

Over the past one year, Rice drinking straws have gradually become an alternative to plastic straws to reduce the amount of waste into the environment. Rice drinking straws are made from 100% natural ingredients that are totally safe for users’ health and the environment. So, how is the process of making rice drinking straws different from plastic straws? Let’s find out: how to make rice drinking straws with Green Starch J.S.C, Vietnam.
Raw materials for making Rice Drinking Straws

Our rice drinking straws are made from whole grain rice that we use daily in our family meals combined with some natural color ingredients such as beetroot, activated charcoal, tapioca,… which are adjusted appropriately to create the color and durability of the straws.

The stages of making Rice Straws


Whole grain rice is pulverized and then filtered through a sieve. After that, the fine rice powder will be mixed with food colors derived from natural vegetables, tubers, and fruits such as black from activated charcoal, purple from beets, green from tea leaves, etc. This first phase is very vital because it affects the color of the outputs.

Thermal addition

Rice Drinking Straws at thermal addition stage

Once mixed, the rice flour will be steamed by an autoclave. Rice flour, after being steamed, will be transferred to a pelletizing machine to create small granules. This thermal addition phase helps the dough have toughness and elasticity, thus creating the durable rice straws in the drink.


Rice Drinking Straws at forming stage

After the thermal addition stage, the granules will be transferred to the extruder. The dough will be pressed into long tubes and then transported on a conveyor belt through a temporary cooling system with evaporator fans. The forming stage determines the diameter of each rice straw through the extruder heads. For instance: 6.5mm diameter rice straws8mm diameter rice straws12mm diameter rice straws, and so on.


Rice Drinking Straws on cutting room

At the end of the temporary cooling system, the cutting head determines the length of the tubes through the sensor and cuts the tubes to the calibrated length. This stage helps create the length of each type of rice straws such as 15cm20cm22cm, etc.


After being cut, the straws are not shaped yet, they will be carried to the dehydrating system. The straws are dried in roughly 60 minutes. The dehydrating system is programmed to heat in stages to ensure the greatest condition of straws after drying. This phase makes the straws dry and have a vertical shape.


After finishing the desiccating stage, the straws will be packed into standard packaging. The final straws have an expiry date under normal environmental conditions approximately 18 months on average. In room temperature and icy water, rice drinking straws can be kept in shape for up to 180 minutes. The rice straws will decompose immediately in the environment after use.

How to make Rice Drinking Straws at Green Starch J.S.C?

Green Starch aims to make the world become a safer place for future generations. Therefore, quality has always been a decisive factor in our rice straws production chain. Hopefully, rice straws could completely replace plastic straws in the near future.

Our factory is located in Sa Dec Rice Flour Village, Dong Thap Province, Vietnam on a 3000m² area. Our manufacturing facility consists of four production lines that run two shifts per day, allowing us to supply 800 – 1,000 tons of rice straws to the market annually. We are committed to deliver rice drinking straws of the highest quality to the market. Besides increasing production capacity, we also invest heavily in R&D through research programs with major universities across the country.

In addition, we also provides OEM service, so that customers can choose the processing specifications and packaging designs as required to create their very own rice straw products which transmit the brand message to everyone. This is the difference in how we produce rice straws here at Green Starch J.S.C.

With a dedicated and professional team, Green Starch Company is always ready to advise customers from sizes, styles, colors to packaging designs to get the most satisfactory and suitable products. Should you need any further information, please do not hesitate to contact us. Let us serve you and together we make our environment greener.


Green Starch Joint Stock Company!

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