Why is it advised not to store pickles and curd in metallic utensils? [3 MARKS] (2024)

FAQs

Why is it advised not to store pickles and curd in metallic utensils? [3 MARKS]? ›

Pickles and curd are not stored in metallic utensils because when they are kept in metallic utensils. Curd or pickle reacts with metals. This reaction will initiate the formation of toxic compounds which may be unfit for human consumption and may cause food poisoning.

Pickles and curd are not stored in brass and copper utensils because when they are kept in copper or brass utensils, curd or pickle reacts with copper and brass. This reaction will initiate formation of toxic compounds (Toxic Salts) which may be unfit for human consumption, and may cause food poisoning.

Pickles contain acetic acid (in the form of vinegar). If pickles are stored in metal containers made up of iron or copper, the acids can react with the metal. This may lead to the formation of some health-hazardous compounds. Hence pickles should not be stored in a metal container.

Curd and sour substances are both acids. Acids combine with metals to form salt and hydrogen gas. When sour things, such as curd, are stored in brass or copper vessels, the lactic acid in the curd reacts with the metals, causing corrosion and the creation of toxic salts that cannot be digested.

Do not use aluminum, copper, brass, galvanized, or iron utensils or containers. These will react with the salt and acids during pickling. This can cause undesirable changes to the pickles.

No, we cannot store lemon pickle in an aluminium utensil because aluminium is a metal and metals readily react with acids to produce hydrogen. When aluminium comes in contact with lemon, which is acidic, would react to give hydrogen and the pickles will be spoiled.

Curd contains lactic acid. The acid from it can react with the metal to to form harmful salts that are not recommended for ingestion.

Curds contain lactic acid, which will react with metal container to give out toxic substance detrimental to our health, if consumed. However, we can store curds in stainless steel vessels for a few days, as stainless steel is an alloy and doesn't react immediately with curds.

Because pickles are made of weak acids, we shouldn't put stainless steel spoons in them. These acids erode stainless steel when they interact with it, creating dangerous salts in the process.

Pickles contain acetic acid. An acidic solution reacts with metals such as iron to form metal salt and hydrogen gas. The metal salt mixes with food items making them unfit to eat. Hence, it is advisable to store pickles in glass container and not in iron container.

Why should not be stored in metal containers? ›

Metal containers, on the other hand, are significantly more chemically reactive than other materials like plastic or glass. For this reason, it is not suitable to store certain chemicals in metal containers as they are likely to corrode.

Answer: no we can't store curd in aluminium metals as it will react with the metal to form hydrogen gas and become acidic in nature and led to formation of aluminium salt.

We know that metals react with acids to form salts and hydrogen gas. When curd and other sour substances are kept in metallic containers like copper vessel, copper reacts with the acid in it to form hydrogen gas and toxic substances which are unhealthy and unfit for human consumption. It may cause food poisoning also.

we keep pickles in glass containers than in metal containers because the citric acids in the pickles react to the metal, therefore this reaction formed in pickle when eaten can harm us , there can be chemical reactions in our body. Thus harmful.

This reaction will initiate the formation of toxic compounds which may be unfit for human consumption and may cause food poisoning. Thus, pickles and curd are not stored in metallic utensils.

Pickling is a metal surface treatment used to remove impurities, such as stains, inorganic contaminants, and rust or scale from ferrous metals, copper, precious metals and aluminum alloys. A solution called pickle liquor, which usually contains acid, is used to remove the surface impurities.

This is because curd and other sour foodstuffs contain dilute acids which can react with the metal of the vessel to form poisonous metal compounds which can cause food poisoning and damage our health. To store foodstuffs which contain dilute acids, we can use vessels made of stainless steel.

Therefore, when they are kept in brass and copper vessels, the metal reacts with the acid to liberate hydrogen gas and other harmful products, thereby spoiling the food.