Hardware Startup Challenges in India!

We had first-hand experience of building a Hardware product (MyT, Chai Brewing systems for Offices & Cafes). This blog outlines in simple words some of the challenges we faced while developing MyT.  In this blog, I won’t touch upon the business challenges that we faced but only the product challenges. 

About MyT (pronounced as mytea) – it is a Chai Brewing System for Workplaces and F&B setups.  MyT automates the Indian-style Tea (Chai) making process by boiling all the ingredients (CTC tea, real spices, milk, water) together.  MyT neither uses Tea Bags, premixes & coffee process to prepare Chai, nor does MyT stores pre-prepared Chai (Read more on types of Chai Machines).  It is a novel Brewer that employs the preparation process and ingredients that are used in Indian homes.  If you would like to know more about MyT, get in touch!

Before I start, consider the following points to set the context:

  • When we started MyT, we had zero experience of building a Hardware product
  • We bootstrapped MyT and were extremely tight on money throughout our journey
  • We wanted to build something that many large companies failed at in last couple of decades – a machine that can make Chai which India loves.
  • We really really wanted to make it work
  • We were based out of Bengaluru, India

Hardware product are challenging because they are money, time and effort guzzlers. Additionally, they require knowledge of multiple disciplines, undergoing a long R&D process, implementing market feedbacks and then cracking Mass manufacturing.

In the following paragraphs, I will touch upon aforementioned points and provide examples (where I can) from our journey about the challenges Hardware startups in India in the mentioned context.

Hardware Requires Multi-disciplinary Expertise

Hardware products require knowledge of multiple disciplines.  I will try to be specific and mention briefly what all did we needed to know while building MyT.  

Understanding of relevant Engineering 

Generic beverage machine engineering , thermal systems, fluids & thermal engineering

Embedded systems

Fundamanetals of Electronics/Electrical Engineering, Drivers, Microcontrollers, Interfacing of various hardwares 

Mechanical engineering

Different Motion mechanisms, Motors (DC, Stepper, Servo), Structural aspects

Firmware aspects

Generic programming skills and how to program various hardware components


Sheet metal manufacuring, Plastic manufacturing/fabrication, Rapid prototyping, Jugaad protyping, Machining, Moulding etc.

Design aspects

General Design thinking, Industrial design

So, if the founding team can handle these areas, great!  If not, then the startup needs to acquire these skills themselves, hire or outsource.  Acquiring skills can be most effective but time consuming & frustrating affair; hiring is fine if startup can pay salaries.  Outsourcing is a tricky and comes with its own set of problems (quality, delays, expensive). What one does really depends on their inclination and their constraints.   

R&D Process is long and expensive

R&D involves coming up with a workable product idea, prototyping it fast and cheap, testing it, learning from it and then improving upon it.  This is repeated till one hits something which is worthwhile of further development.  It sounds simple but in reality it requires relentless creativity, mountains of motivation and endless optimism to keep generating new ideas and ruthlessly rejecting ideas that don’t work.

Prototyping takes time

A typical prototyping involves setting up hardware (sensors, heaters, pumps, motors, valves etc), interfacing hardware to the circuit, programming the board to run as desired and if needed build an enclosure around it.  If the function is not final then the idea is to see whether the prototype functions the way one wants it to.  If it does the prototype is developed further, if not a new concept / idea is worked upon.   

I’ll give an example.  We prototyped thermoelectric cooler to cool the stored milk so that milk does not spoil at room temperature. The aim of making this prototype was to check how many peltiers it takes to cool milk down and find out the rate of cooling.


The prototype cooled 1.5 litres of mik by ~20C in 2 hours with an efficiency of ~3%.  The conclusion was that we won’t go this way.  Later, we learned that in a typical office more than 1.5 litres milk is consumed easily in less than an hour so milk does not reach a point where it gets spoiled.  In the hindsight, we should have never tried this in the first place. 

Building this jugaad setup was easy – fix cold side of peltier on a vessel, fix heat sinks with a fan on hot side of the peltier, connect it to power supply, program the sensor and run.  But still it took slightly more than a month before we obtained the curve shown above.  Things blowing up, adhesive coming off, different design, different thickness of vessel, improper insulation, sensor calibration, manufacturing of vessel and sometimes wrong ideas take away a lot of time.  I wish something as easy as ctrl-C, ctrl-V, ctrl-Z, ctrl-X existed for physical products 🙂    

Non-availability of components

As prototyping progresses, new ideas come up and the need for some specialized components/electronics arises.  Usually such components are not available in India and need to be imported from EU, US or China.  They components are expensive with very limited information available about their working; mostly they are available as spares of some existing products.  It takes time for components to arrive, takes time to learn how to use them and sometimes they get stuck in customs which further delays things. 

  • Once we ordered an expensive heater from EU which was supposed to run in a specific way which wasn’t described anywhere; we ended up melting it during our tests and had to re-order. 
  • On another ocassion we wasted a month trying to run an arduino shield ordered from sparkfun US. After a couple of weeks of frustration, we ordered  the second one which worked fine and we realized that we probably blew the first one on the first day of use. 
  • At another time, a seller from China decided to downvalue parts we had ordered and consequently those parts got stuck in customs.  Later we had to let go of those and re-order as the penalty was way too much.   

There are weeks where one would feel “what did I achieve in this week?”

Custom part development

Manufacturers don’t entertain custom part development in small quantity.  Its a hassle for them as their machines are already occupied with the other ongoing job-works.  Additionally, a new custom part development can’t be offloaded to a junior member and a senior person at the factory needs to get involved. It is time consuming deal for one-time money and most of the time there is no recurring business for the Manufacturer.

After a lot of searching around in Bangalore, we found a couple of manufacturers who were willing to help us on our prototypes and custom parts. 

  • One of them did development for us twice for four times the usual cost and later stopped responding to us. 
  • While the other reguarly took 2.5-3 months (on a 2 week delivery committment) for our parts with daily whatsapp / calls followups and weekly in-person followup visits (~100 km round trip). 
  • We wasted aggregate of 1+ years easily waiting for components to arrive, manufacturer to give us the parts and design modifications from the design firm.
  • Lastly, it used be disturbing when you get a part after months only to realize that even after multiple discussions, the specifications are off and will need to be re-done.

Thankfully, last year we discovered IKP and got rid of time component of the aforementioned problems.

Prototype Manufacturing

After churning and rejecting several prototypes, we were satisfied with our 25th. We were anxious / curious to give it out to customers on subscripton basis.  But generally the sentiment at the prototype level was to crack functionality literaly at any cost.  Which meant that some more work was required before we could actually have a version that can be pitched for a paid use.  Specifically we now had to do the following:

  • A decent enclosure was required that was required to be done without using plastics or incurring any fixed costs
  • Some components needed to be optimized for cost and reliability
  • We realized a couple of modules required re-engineering to ensure reliable and predictable performance so that we don’t have to fix them often.  
Chai Brewer MyT 25th and 26th prototype
25th Prototype (on the left) and the launched subscription version (26th on the right)

After so many prototypes, we were shattered that another 6 months of effort was still there before a single rupee of revenue is earned; sadly there was no escape.  Finally, the design firm delivered the CAD design in 1.5 months, manufacturer gave us 5 units in 3 months; in the meantime, we had changed engineering to be more reliable and were ready to install in the 6th month. 

Product-Market Fit Evaluation

Once the paying customers are in, the real feedback pours in.  We, particularly, were looking for the feedback on usablity, usefulness and functionality of the product. 

  • Usability was realtively quick and easy and within a month and talking to a few users told us what needed to be done. 
  • Usefulness was pretty straightforward but it took time – if the monthly consumption was stable for 6-month period then it implied that the users were repeatedly using MyT and find it useful enough. 
  • However, the functionality evaluation was difficult and time-consuming because of the following:
  1. Incorporating feedback was difficult if any hardware modification was involved. In general, this required going to installed locations, opening up the Brewer in office / cafe during off timings, installing the new part and then testing it then and there.   
  2. Another aspect was evaluation of robusness of the components.  Components / modules were observed for several months to see which component wears out followed by fixing it / replacing it and observing it again if it didn’t work.  This required at least 6 months of operation in different settings so that it could amount to thousands / lacs of cycles of a component. 

Took us almost an year and half to understand and be sure of what really worked in the real setting, what didn’t, what users wanted, what they didn’t, what we wanted and what we didn’t.  Thereafter we ideated for a few months (~6-7) and fortunately we hit on a concept which we firmly believe would prove to be the dominant design for future Chai machines.  Although the new concept required complete architechture overhaul of the 26th version, we were able to achieve that post 9-10 functional jugaad prototypes. This new version (36th) solves all our product problems that we experienced first-hand in the market.  Particularly, the improvements over the 26th version were – improved taste in half brewing time, enhanced usability & automation, simple to manufacture, assmble & service, easier maintenance, and more robust.   

Mass Manufacturing

This is the next item that we need to figure out in near future.  I won’t write about it as of now but would update it later. 

Chai Machines used in Offices & Cafes

Making a good cup of Chai (Indian-style Tea) takes time (~5 minutes) and requires monitoring (to prevent boilover) thereby making it an involved process. Hence, people resort to Chai Machines outside homes specially in Offices and Cafes. This blog provides a quick overview of the existing methods employed to deliver Chai outside homes.  This blog is helpful for folks who are contemplating getting a Chai Machine for their employees or customers.

Premix Chai Machines

This technology is at least 3 decades old. These machines mix hot water with a mix of spray-dried milk, spray-dried tea, spray-dried spices and powdered sugar.  

Quick – dispenses in 10 seconds Tastes artificial and far from real Chai 
Inexpensive – INR 2-3 / cupNot hot & leaves a residue on tongue 
Available in multiple spice (spray dried) flavours  Stored milk powder and sugar attracts cockroaches and flies
advantages/disadvantages of a premix based Tea vending machine
Vending Machine - Tea Vending Machine Manufacturer from Jabalpur
A typical Premix-based Chai machine or a Tea vending machine

Liqueur-based Chai Machines

These machines are actually filter coffee machines in disguise. Just as filter coffee machines prepare coffee by mixing hot milk with coffee decoction, these machines prepare Chai by mixing hot milk with stored Tea liqueur.  

Quick – dispenses in 10 secondsNon-homogeneous, light and smelly Chai
Variety of Spices (spray-dried)Uses processed (spray-dried) spices – does not taste authentic
Uses Fresh MilkMilk vessel is difficult to clean and stinks after a few uses
 Creates wastage as Tea liqueur needs to be flushed every few hours
advantages/disadvantages of a liqueur-based Tea vending machines
Liqueur based Chai Machines mix pre-prepared & stored liqueur with hot milk

Tea bag based Chai Machines

These machines dispense a mix of hot water and warm milk in a cup. The user then grabs tea bag and dips it multiple times.

Variety of Tea bags (ginger, cardamom, masala)Tea is light and not homogeneous as the tea leaves are not boiled
Variety of beverages (Tea, Coffee, Lemon Tea)Time consuming & inconvenient as it requires dipping tea bags multiple times
Available in multiple spice (spray-dried) flavours  Not hot so needs to be microwaved or steamed 
 Expensive as usually using 2-3 tea bags for a cup need to be used
 Tea dust in these Tea bags are of very poor quality
advnatages/disadvantages of a Tea-bag based Tea vending machine
Plain Tea Bag at Rs 395 /pack | Yerwada | Pune | ID: 13335472630
Tea bags are dipped multiple times in milk-water mixture

Pre-prepared Chai stored in Vessels & Flasks

These are not machines per se but sometimes referred to as specially if the flask / urn is heaterd.  At tea stalls and cafes, to reduce effort, Chai is pre-prepared in bulk (~1 – 20 litres depending on the need) and stored in flasks or heated or non-heated vessels.

Quick as Chai is pre-prepared. Just open the tap and fillThe flavour & freshness disappears within a few minutes of storage. Chai tastes bad
 Inconsistent taste from preparation and storage.
 Cleaning of these vessels is difficult and after a few uses the vessels stink of milk 
 Wastes a lot of Tea if not consumed
advantages/disadvantages of stored pre-prepared Chai tea vending machines
Heater Tea urns used in Cafes and Tea flasks used at Tea stalls

In short, machines present an efficient way to make Chai but fail terribly at providing the authentic taste that we want in our Chai. The real method of making Chai is too slow and involved thereby making it impractical to put to use outside homes. Pre-prepared and stored Chai option makes Chai taste bitter and stale within a few minutes and creates a lot of waste.

If you have to decide for one for your office / cafe and are unsure about something, you can get in touch with us at connect@mytbrewer.com or fill out this and we will help out!

MyT’s website