No-Cook Techniques That Are Perfect For Summer:

Fermented Foods

And More

Quick Summary

Summer is the perfect season to try no-cook techniques like fermentation, curing, etc. Not just because cooking feels extra tiresome in the heat. But because it saves the food from the dreaded spoilage that marks this season. During summers, anything kept outside for too long, especially during the oppressive heat hours of noon and afternoon, will not stay unhampered and might promote microbial activity. So, preservation techniques like curing, fermentation and pickling were invented to keep foods edible for longer. These techniques continue to thrive, even today.  

Deep Dive

With K-dramas frequently showing Ajummas (aunty) and Halmeonis obsessively smoking and pickling ingredients with condiments for their kids and grandchildren, it's almost like they were born prepared for summer. These no-cook techniques are shared by many older generation folks, even in India, where seasonal produce is turned into fermented foods or pickles so they can be eaten later with rice, roti, soups or as a part of a big meal. Carrying over tradition when it comes to food promotes seasonal eating, which is good for your overall health. So, here are three no-cooking techniques you could try.

What Are Fermented Foods?

If you look into research papers on fermented foods, most will state that these are not spoiled ingredients or dishes, but food or beverages that are made under a controlled environment that encourages microbial growth. The food is converted through the action of enzymes. While fermentation is a conscious practice now, there are many such foods that were accidentally discovered in the past, after they had undergone the fermentation process. 

The Fermentation Process

In this process, microorganisms such as bacteria, yeast, or fungi break down sugars and other compounds, transforming the food’s chemical structure and properties. The ingredients and the environment also play a vital role in the fermentation process.

Historically, the fermentation process was practised as a way of preserving select food items by using organic acids or ethanol. But some foods just can't be eaten without fermentation, like certain kinds of fish and root vegetables.

The Fermentation Method

There are also two proper methods when it comes to the fermentation process – the first is spontaneous or ‘wild’ fermentation, where naturally occurring microorganisms present in the raw ingredients or environment drive the process, as seen in foods like Korean kimchi. 

The second is culture-dependent fermentation, which involves the addition of starter cultures, such as in kefir or the fermented beverage kombucha. A common technique within this method is backslopping, where a portion of a previously fermented batch is introduced into a new one to initiate fermentation. Starter cultures may be naturally derived, as in backslopping, or commercially selected to ensure consistency.

What is Curing Food?

One of the most widely used no-cook techniques, when it comes to preservation, is curing. It uses salt (often with sugar, nitrates, or nitrites) to stabilise food by removing moisture and controlling microbial activity. The core mechanism is osmosis, for curing, where the high concentration of salt outside the food draws water out of its cells. This reduces overall water availability, making it difficult for bacteria to grow or survive. At the same time, salt also dehydrates microbial cells directly, disrupting their internal processes and inhibiting spoilage. 

The Curing Process

Curing begins by treating food, typically meat, fish, or sometimes vegetables, with a mixture that usually includes salt, and often sugar, nitrites, or nitrates. This can be done in several ways: salt rubbed directly onto the surface (dry cure), immersing the food in a salt solution (wet cure or brine), or injecting that solution into the food. 

Once the salt (and other cure ingredients) contacts the food, it draws water out through osmosis – water moves from inside cells to the salty environment outside. This reduces available water (water activity), which is essential for most spoilage bacteria to grow.

With less free water and a high salt concentration, conditions become unfavourable for bacteria and other microorganisms that cause spoilage. Salt also penetrates the food, helping preserve it more deeply over time.

What is Pickling?

Pickling is one of the oldest and most widely used no-cook techniques when it comes to food preservation, dating back thousands of years, that protects perishable foods by immersing them in acidic or salty environments so harmful microbes can’t thrive. In the process, foods such as vegetables, fruits, meats, and seafood are soaked in brine (saltwater), vinegar, or other acidic solutions, which not only extends shelf life but also develops distinct flavours and textures. 

The Pickling Process

The food is placed in a container with a brine (saltwater) and/or acidic liquid (like vinegar). This environment is intentionally hostile to bacteria that cause spoilage. What happens is:

• Acetic acid from vinegar lowers pH immediately, which prevents decay.
• Salt draws moisture out of the food and helps inhibit microbes.

In some traditional pickling (especially with vegetables in salty brine), naturally occurring lactic acid bacteria convert sugars in the food into lactic acid over time, further increasing acidity and flavour. This is fermentation pickling, and it’s what gives some pickles a deeper sour taste.

Types of Pickling

• Vinegar pickling: food is preserved with an acidic solution like vinegar, often boiled and then packed for storage.
• Brine pickling: salty water allows fermentation by bacteria, creating natural acids that preserve and flavour the food.

A Comparison of the No-Cook Techniques of Preservation

No-cook techniques are great during the summer heat, because they don’t require you to sweat away at the stove. If you are confused about where to start, then this table simplifies things further and will help you pick what to try and when. 

No-Cook Techniques Made Easy

While no-cook salads and desserts are amazing for summer, you should also venture into fermented foods and other no-cook techniques that might be laborious, time-consuming, and technique-driven, but are rewarding in the long run. The best part is that you can make these in bulk and support your long-term health goals.