Dispose of that disposable cup

Chemicals and wax lining in various throwaway containers can cause heart diseases, diabetes, bladder stones, kidney failure and even cancer\

The longer you take to drink your coffee, tea or cold drink, higher will be the wax content in your drink thinkstock

In the course of attending a long training course, the only solace for the participants was different mouth watering snacks, served along with a steaming cup of tea. The tea break was the most awaited of sessions as this was the time to for interactions and networking, while holding tightly to that small, seemingly unsuspicious disposable cup of tea. 

After almost a week, the problem started. Those with sensitive stomachs complained of some discomfort, and began avoiding their morning cuppa. Others laughed it off as an excuse to their diet consciousness. Another week passed, the problem spread. Now, the members of the laughter club also switched sides with non-tea drinkers. Since the snacks and tea were all freshly prepared, who or what was the culprit? The answer lied in that cup only. The wax from disposable paper cups being ingested through hot beverages was probably causing the problems though some remained sceptical. However, many scientific studies have found out similar results.

Wikipedia says that ‘a disposable cup and other tableware are a type of disposable tableware and disposable food packaging. Disposable cups and other containers are meant for single use, thus contributing as a major source of consumer and household waste.’ 

Historically, disposable cups were developed in the USA in 1907 by Lawrence Luellen, a lawyer in Boston, Massachusetts, as these were convenient and addressed hygiene concerns. 

Deadly cocktail

Disposable cup types include paper cups, plastic cups and foam cups. Research indicates that plastic cups may cause 52 types of cancer. Toxins released into food by plastic cups have been linked with heart diseases, diabetes and reproductive development failure. Styrene migration into food has been observed in case of polystyrene or foam cups. This migration increased with increase in fat content of the food and at higher temperatures. Styrene can cause fatigue, nervousness, sleep disorders, reduction in platelet counts and in some cases has been linked with cancer. 

Not a lesser threat

Considering the hazardous effects of plastic and foam cups, food retailers and restaurants are substituting these with paper cups. Disposable paper cups use high-quality, bleached, virgin paper board. These have to be lined with polythene or wax in order to provide insulation, durability and for preventing the paper getting soaked. The cups have also to be glued at the seams. There are many health concerns related to disposable paper cups as well. The polythene or plastic lining releases Bisphenol A (BPA) and the glue releases melamine into the food. The Journal of the American Medical Association says the BPA is linked to increased risk of heart disease, diabetes and liver problems. Melamine has been shown to be a contributor of weight gain, diarrhoea, bladder stones, kidney failure, and cancer. 

Not just cups, all other disposable tableware also contributes to the similar risk of contaminating the food due to migration of styrene from polystyrene, plasticisers from PVC, acetaldehyde from PET, etc. This migration of contaminants is dependent on the chemical structure of the migrants, type of food, and its temperature. Even aluminum leaches from the foil into the food depending on the spices in the food, its acidity and temperature.

Waxing woes

Approved waxes are safe to eat and are added in minute amounts in chocolates and confectionery items. Wax is also used as a coating of fresh fruits and vegetables to retain their freshness. In case of instant noodles and pastas, though there has been lot of hullabaloo on social media that these are coated with wax, manufacturing standards and various tests prove otherwise. In fact, the wax is not digested by our body and is excreted as such. But with no checking measures in place, industrial wax may be used for lining the cups in order to reduce the production costs. So, the harmfulness of paper cups depends on the quality control in its manufacturing. Food-grade waxes can be naturally sourced from plants, petroleum, beeswax, and/or shellac or resin. The Food Safety and Standards Authority of India (FSSAI) mentions that packaging material should be designed such that migration of any of the specified contaminants should not render the food served in it unfit for consumption.

Environmental issues

In addition to health concerns, environmental pollution due to non-degradable wastes generated, deforestation, water consumption, chemicals and energy in manufacturing of these containers is a major threat. In order to mitigate these challenges, recycled cups are being manufactured. However, these should not have recycled content of more than 10 per cent as it leads to higher concentration of BPA.

Scary facts

A research was published in the proceedings of International Conference on Recent Advances in Emerging Technologies (ICRAET – 2016). The study comprised testing wax content and its migration into hot and cold beverages from different branded and unbranded paper cups. Wax content in the inner lining of these cups was found to be in the range of 3.83 per cent to 4.88 per cent. Wax migration was more in case of hot beverages as compared to cold beverages and the amount increased with longer holding time. The longer you take to drink your coffee, tea or cold drink, higher will be the wax content in your drink. Average two cups per day consumption of hot beverage from wax-coated paper cups leads to an annual consumption of wax from 15g to 34g; while for cold beverages, it is 3.64g to 5.1g, for drinking time of 15 minutes. 

There should be guidelines in place for takeaway containers. Regulators need to formulate guidelines on wax as a food contaminant. Also usage of paper cups should be made discretionary and fast-food joints should be willing to serve in containers of our choice.

— The writer is head, Department of Food Science, MCM DAV College for Women, Chandigarh

Cleaning the water

The poor in India often fall sick by drinking contaminated water; many even die. The middle classes are over-cautious, even paranoid, installing sophisticated water purifiers, while water continues to be non-potable.

The FSSAI (Food Safety and Standard Authority of India) is exploring the possibility of making municipal corporations and State water supply boards accountable for the quality of water.

About time. At least 32 per cent of households which have access to treated tap water can be assured of safe drinkable water.

The CCPC (Central Consumer Protection Council) supports the FSSAI’s move on monitoring the quality of water; one hopes a well-intended move doesn’t end up in jurisdictional tussles. Regulations for packaged water are in place; the FSSAI is the licence-giving body; the certification comes from the Bureau of Indian Standards.

Despite this, several cases of violation of standards have come before the Green Tribunal. Though standard procedures are prescribed for water supply under different Water Boards, contamination persists in the absence of monitoring. Even in the capital city, water is found to be non-potable.

There are reports of water getting mixed with sewage at several points. About 21 per cent of the communicable diseases are related to unsafe water; diarrhoea alone causes 1,600 deaths daily.

The source of water - rivers - is blamed for causing contamination in potable water. For the first time, the CCPC is advising the government to standardise the quality of water supplied through pipelines, irrespective of its source.

This should make several agencies accountable, including those involved in storage, treatment and supply. Lack of accountability of Water Boards has promoted a 25 per cent annual growth of packaged water; bottled water alone does business worth Rs 3,000 crore and the sale of water purifiers exceeds Rs 7,000 crore a year.

By 2012, about 15 million units of water purifiers were sold in India. The FSSAI Act is undergoing amendments; standardising and monitoring water quality should be its priority. The Modi government is doing the right thing in focusing on these every-day issues.

Even though the TV channels are discussing only the controversies, a lot of silent and good work is being done. And the case in point being this development on the water front.

Vadodara Municipal Corporation food safety teams check eateries

VADODARA: The Vadodara Municipal Corporation (VMC) continued with its extensive checking of eateries in the city in wake of the monsoon season that brings with itself diseases related to food.

Teams of the civic body checked eateries around the Uma Crossroads on the Waghodiya Road and Sangam Crossroads in the Karelibaug area of the city. Shops, handcarts and restaurants operating in these areas were checked by the food safety officers of the civic body.

In all, the teams checked 61 establishments and collected 10 samples that were sent to the public health laboratory of the civic body for testing. Around 260 liters of tamarind and mint water used for panipuris, 195kg of other material including gravy, sauces, syrups and raw material were destroyed by the teams. As many as 19 food business operators were issued notices for not maintaining hygiene.