What Is Kimchi?
Kimchi is a traditional Korean fermented vegetable dish that has been at the heart of Korean cuisine for thousands of years. At its core it is simple: vegetables most commonly napa cabbage (baechu) are salted, rinsed, then coated in a vibrant paste of chilli flakes (gochugaru), garlic, ginger, and often a little fish sauce or fermented shrimp. The mixture is then left to ferment, typically for days to weeks, during which time lactic acid bacteria transform its flavour into something altogether more complex: simultaneously spicy, sour, savoury, and deeply umami.
There are thought to be over 200 varieties of kimchi in Korea. The most common is baechu kimchi (cabbage kimchi), but you'll also encounter kkakdugi (crunchy cubed radish), oi sobagi (stuffed cucumber), and pa kimchi (spring onion). Each has a distinct flavour and texture and each responds beautifully to fermentation time, meaning a one-week kimchi tastes entirely different from one that's been fermenting for a month.
"Kimchi is the cornerstone of Korean cuisine." — Judy Joo, Korean-American chef and food writer
The Health Benefits of Kimchi
Kimchi's reputation as a functional food is backed by growing scientific research. Here's what makes it worth eating regularly:
Gut Health and Probiotics
Kimchi is rich in lactic acid bacteria produced during fermentation beneficial microbes that support a healthy gut microbiome, aiding digestion, immunity, and overall wellbeing. Unlike most supermarket versions (which are pasteurised and stripped of live cultures), fresh kimchi from a market stall is raw and alive with probiotics.
Immune System Support
A 2025 clinical study by the World Institute of Kimchi found that regular kimchi consumption can simultaneously strengthen immune defences while preventing harmful overreactions acting as what researchers called a "precision regulator" of the immune system. It was the first study to identify these effects at a single-cell level.
Heart Health and Weight
A 2024 meta-analysis found that fermented kimchi was linked to lower fasting glucose, reduced triglycerides, and improved blood pressure. A separate randomised trial found daily kimchi consumption over 12 weeks led to a significant reduction in body fat, attributed to positive changes in gut microbiota.
Fresh, unpasteurised kimchi retains its live cultures unlike pasteurised supermarket versions. If you're eating kimchi for gut health, fresh from a market stall is the way to go.
How to Buy Kimchi: What to Look For at a Market Stall
Not all kimchi is equal. If you're at a food market, here's how to get the best:
Ask if it's unpasteurised. Raw kimchi from a market stall retains its live probiotic cultures — a major advantage over most supermarket jars.
Check the fermentation stage. Young kimchi (under a week) is crunchy and mildly spicy. Aged kimchi is softer, more sour, and deeply flavoured. Ask the vendor what suits how you want to use it.
Look for clean ingredients. Good artisan kimchi has a short, recognisable list: cabbage, gochugaru, garlic, ginger. Many UK makers now offer vegan versions using miso instead of fish sauce.
Where to Find Fresh Kimchi at UK Food Markets
The best fresh kimchi in the UK isn't on a supermarket shelf, it's at food markets and farmers' markets, made by artisan producers using traditional methods. Here's where to look:
London
Borough Market (London Bridge) is the natural starting point, its specialist produce traders include fermented food vendors, and Korean-influenced dishes appear throughout the Market Kitchen. Broadway Market in Hackney and Camden Market are also strong hunting grounds, the latter with a particularly vibrant Korean food presence. Food halls like Mercato Metropolitano and Market Halls regularly feature vendors serving kimchi-laden dishes. Look out for Kimchi With Everything, a Greater London artisan producer making unpasteurised, vegan, gluten-free kimchi at markets and online.
Edinburgh
Stockbridge Market, a beloved Sunday destination beneath Edinburgh Castle, regularly features artisan fermentation stalls. Edinburgh Fermentarium produces kimchi and sauerkraut sold at local markets and even runs kimchi-making workshops. Harajuku Kitchen, which grew from a Stockbridge Market stall into a permanent venue, is widely praised for its Korean dishes.
Bristol & Beyond
St Nicholas Market in Bristol is a South West favourite for international street food. Bath Culture House based in Somerset, is one of the UK's most respected artisan kimchi makers: handmade, raw, unpasteurised, Great Taste award-winning. They sell at farmers' markets and food events across the region. Nationwide, look out for Mr. Kimchi and The Cultured Collective at food markets and festivals.
Use the Food Marketplace directory to find food markets and fermentation vendors near you and discover what's trading this weekend.
Pro tip: Market vendors often offer tasting samples. Try before you buy to find your preferred style, young and crunchy, or aged and punchy.
How to Use Kimchi at Home
Once you've brought your market kimchi home, here are a few of the best ways to use it:
Kimchi fried rice: fry day-old rice with kimchi, top with a fried egg and a drizzle of sesame oil. One of the most satisfying quick meals going.
Grilled cheese: layer aged kimchi into a sourdough toastie, the spicy-sour cuts beautifully through melted cheese.
Kimchi butter pasta: butter, aged kimchi, and your pasta of choice. Sounds unconventional, tastes brilliant.
As a side dish: the traditional Korean way, a small bowl alongside any savoury meal. Pairs particularly well with rice, noodles, and grilled meats.
The Verdict
The gap between a pasteurised supermarket jar and a fresh, handmade kimchi from an artisan market vendor is vast. If you've only ever had the former, a trip to your nearest food market will be a revelation. Use the Food Marketplace directory to find what's trading near you this weekend.