How to Start a Thermos Flask Manufacturing Business

The function of a vacuum flask is to insulate its content. It maintains the temperature higher or lower than the surrounding temperature. This keeps the content hot or cold for extended duration.
It works by eliminating air from the chamber between the two flasks. The vacuum flask consists of two flasks placed within the other joined at the neck. This is achieved because a layer of vacuum space is created.
It is used to keep hot coffee or cold water, food or beverages. The product has good economic value and attracts premium prices. Although there are many types the market is not saturated.
Therefore investors interested in the business can carve a niche through design quality and branding. To start the business you need to learn the manufacturing process. Then purchase appropriate equipment and raw materials.
Try to focus on one type of thermos and work on quality. You need startup funding, good location and an effective marketing strategy. You can supply you local demography or look at export opportunities.
A Brief History
The insulated bottle was originally designed by Sir James Dewar in 1892 as a result of research in cryogenics. He evacuated the air between two flasks through a vacuum system to create the product.
Common uses of the bottle are for household use and scientific chemical experiments. Later development of the product includes the introduction of aluminum and glass.
By 1904 commercial glass blowers Albert Ashenbrenner and Reinhold Burger designed and patented the thermos. They later sold the design to the thermos company who expanded the size, shape and product rage. The thermos design was significantly refined by Gustav Robert a Viennese inventor.
Types of Thermos Flask
They generally work the same but come in different designs. The different types can be based on materials used in the construction. Common types include all-steel vacuum bottles, stainless steel and ceramic thermal tumbler, glass.
Business Plan
The first step is to write a comprehensive thermos flask making business plan. Then carry out a feasibility study and product sampling. You need appropriate funding, good design and quality equipment. Try to study your competitions prices, products and marketing strategy.
Learn the Trade
It is important you learn the manufacturing process. You can hire an expert in the business. Other ways are through industrial training or apprentice programs. Learn through trade workshops, seminars or tutorials.
hot water bottle
Raw Materials
The raw material depends on the type of thermos you want to make. To manufacture the product you need stainless steel, plastic resin. Others include soda-lime silicate glass, an aldehyde solution, silver ammonia complex solution and liquid foam.
  • stainless steel
  • plastic resin
  • soda-lime silicate glass
  • aldehyde solution
  • silver ammonia complex solution
  • liquid foam
  • borosilicate glass
  • metal
Register a business name and incorporate a company. Your company could be an enterprise or LLC. Go to the corporate affair commission of your country for details. You also need tax identification number TIN, liability insurance cover.
Your products should pass the basic quality assessment and standardization of such products. Other requirements include environmental issues, proper waste disposal system and safety of employees.
Make sure your company hires experience machine operators and administrative staff. You need direct labor for packaging, location drivers and sales representatives. You need a marketing department and quality control department.
The location could be close to the source of raw materials or market. Make sure the factory has basic utilities, good road network and easy accessibility. The factory should accommodate equipment, storage and loading area.
Manufacturing Process of Thermos Bottle
The vacuum flask consists of two vessels placed one within the other. Air is evacuated between the spaces to create a partial vacuum to reduce convection or conduction.
There are a couple of steps you need to make thermos bottle. The manufacturing process depends on the type of flask. The stages are the perform preparation, system of billet. Then the introduction of a complex solution poured into the bottle ballet inner layer and finally the vacuum system.
To make plastic vacuum flasks small pellets of plastic resin is blow molded into desired shape. A stainless steel sheet is shaped for the outer covering.  The formed outer cap is fitted with inner layer and glass filter placed inside the outer cup.
Insulation is added and liquid foam is sprayed between the cup spaces and allowed to harden. To manufacture a hot insulated bottle instead on liquid foam, air is sucked out of the cup space with a powerful vacuum machine.
The steel bottle is coated, bottle stamped or logo added. Blow molding is used to make the top and a stopper is introduced. The final product goes through a series of quality assessment and standardization tests.
Manufacturing Process
1. Perform preparation
2. System of billet
3. Introduction of a complex solution
4. Vacuum system
Quality Control and Safety
Insulated bottles go through strict control measures. The heat or cold retention are tested, viscosity or discolorations.  The vessel should be fitted with metal base for safe handling or prevention from physical damage. Rapid vessel temperature changes can lead to implosion or unexpected shattering.
To get your product noticed you need an effective marketing strategy.  You need wholesalers, retailers and export market. Use electronic and print media, proper pricing and attractive packaging. Leverage on marketing professional’s to introduce your brand to the general public.


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