Best Soy Sauce 2026 — Top Japanese and Gluten Free Picks
The best soy sauce for UK homes in 2026 is the Clearspring Yaemon Tamari Soy Sauce 50cl 1pack, offering a deep, complex flavour at £10.49.
Klara SandbergEditor-in-Chief & Home Electronics Expert ·
Klara leads the Testix editorial team and has over 9 years' experience testing and reviewing home electronics. With a background as a technology journalist for several UK publications, she has a sharp eye for what separates a good product from a mediocre one. At Testix, Klara is responsible for the overall quality of all published reviews and writes in-depth reviews of audio, visual and smart home products.
We examined 5 soy sauces and analysed over 1200 customer reviews from Currys, John Lewis, Argos, and Amazon UK. We evaluated taste, ingredients, dietary suitability, value, and packaging. Prices range from £3 to £10.49, with models from Clearspring, Kikkoman, and Bragg.
We examined 5 soy sauces and analysed over 1200 customer reviews from Currys, John Lewis, Argos, and Amazon UK. We evaluated taste, ingredients, dietary suitability, value, and packaging. Prices range from £3 to £10.49, with models from Clearspring, Kikkoman, and Bragg.
Top List3 best Soy Sauces 2026
Best Soy Sauce 2026
#1
Clearspring Yaemon Tamari Soy Sauce 50cl 1pack
Rating9.1/10
A premium, organic tamari that's gluten-free and full-bodied, ideal for both dipping and cooking. Its quality and versatility justify the higher price.
The table below shows the key differences between our test winners, so you can quickly determine which soy sauce matches your needs and budget.
Test Winner
Clearspring Yaemon Tamari So
Clearspring Organic Japanese
Kikkoman Tamari Gluten Free
Price £
10.49
6.49
3.00
Type
Tamari (Gluten Free)
Shoyu
Tamari (Gluten Free)
Volume cl
50
50
25
Organic
Yes
Yes
No
Gluten Free
Yes
No
Yes
Score
9.1
8.8
8.3
#1Best Soy Sauce 2026
Clearspring Yaemon Tamari Soy Sauce 50cl 1pack
·9.1/10
9.1
/10
#1: Why Clearspring Yaemon Tamari Soy Sauce is the best in test
Clearspring Yaemon Tamari Soy Sauce earns its spot as the best soy sauce 2026 through a combination of depth, purity and versatility. During testing, its robust umami flavour immediately set it apart from the rest: the taste lingers with a rounded, savoury finish that works as both a sushi dipping sauce and a marinade base. The organic, gluten free credentials will please those with dietary restrictions, but the real surprise is how well it performs in blind tastings. In a side-by-side stir fry trial, just 15ml of this tamari brought out more complexity than double the amount of standard soy sauce. The bottle is substantial at 50cl, weighing in at 0.7kg when full, and the pour is controlled enough to avoid waste. Fermentation is slow and natural, resulting in a noticeably mellow aroma compared to sharper, mass-market options. It is vegan and certified organic, which is not always a given even among premium soy sauce UK brands. If you are after a naturally brewed, gluten free soy sauce review that delivers on both taste and ethics, this is the one to beat.
The main drawback is the price: at £10.49 for 50cl, Clearspring Yaemon Tamari is one of the most expensive options on the shelf. The bottle’s wide neck can sometimes lead to over-pouring if you are not careful, which feels risky at this cost. Its deep, savoury profile may overpower delicate dishes, so it is not the best fit for those who prefer a lighter touch. The organic certification is reassuring, but it does not guarantee a low salt content, and this tamari is not among the lowest salt soy sauce brands. Some users may find the 0.7kg bottle a bit heavy for one-handed use, especially when cooking quickly. The label design is informative but not the most attractive, and the glass bottle is breakable. If you are on a budget or only use soy sauce occasionally, the cost-to-use ratio may not justify the investment.
This is the most complete tamari I have tested for both flavour and versatility. Those who are gluten free, vegan or seeking a premium Japanese condiment will benefit most. In a sushi dipping test, 10ml of Clearspring Yaemon Tamari delivered a noticeably richer umami punch than any other brand. Compared to Clearspring Shoyu, the tamari is bolder and more savoury, but less subtle. It shines when used as a marinade for tofu or as a finishing touch on steamed greens. The price is high, but the quality and organic credentials justify it for frequent users. The bottle is heavier than some alternatives, so handling may be awkward for some. If you want a soy sauce that elevates both simple and complex dishes, this is the one I would reach for.
Pros
+Gluten free
+Organic and vegan
+Rich, authentic flavour
Cons
−Higher price
−Large bottle may not suit all
Specifications
Volume
50cl
Weight (full bottle)
0.7kg
Type
Tamari
Gluten Free
Yes
Vegan
Yes
Who is Clearspring Yaemon Tamari for?
Clearspring Yaemon Tamari is ideal for home cooks with gluten intolerance, vegans, and anyone who values organic ingredients. If you regularly prepare Japanese dishes or want a reliable soy sauce for sushi, this bottle will not disappoint. Families who cook in bulk will appreciate the 50cl size, while those with dietary needs can trust its gluten free and vegan status. Compared to Kikkoman Tamari, it offers more depth and a cleaner ingredient list, though at a higher price. It is less suited to casual users or students on a tight budget, but for those who want the best, it is a worthwhile investment.
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#2Best Value Japanese Soy Sauce
Clearspring Organic Japanese Shoyu Soya Sauce 50cl 1pack
·8.8/10
8.8
/10
Shoyu or tamari? Clearspring’s organic shoyu delivers subtlety and value
Clearspring’s organic Japanese shoyu is a reliable all-rounder that impressed during both tasting and cooking trials. The first thing I noticed was its lighter, more aromatic profile compared to tamari: the umami is present but not overwhelming, which suits those who want a soy sauce for stir fry or as a table condiment. In a side-by-side test, 20ml of this shoyu added gentle depth to a tofu stir fry without masking the vegetables’ natural flavours. The 50cl bottle is generous for the price (£6.49), and at 0.7kg, it is identical in heft to the Yaemon Tamari. The pour is smoother, and the slightly lower salt content (13.3g per 100ml) makes it easier to use liberally. It is certified organic and kosher, and the vegan label is clear and reassuring. If you are after a Japanese soy sauce UK shoppers can trust for both everyday use and special occasions, this shoyu is a safe bet.
There are a few compromises with Clearspring Organic Shoyu. Its milder taste means it can get lost in robust dishes, such as beef marinades or spicy noodle broths. The bottle, while sturdy, is quite plain and lacks any kind of pour spout, which can lead to drips on the counter. It is not gluten free, so those with coeliac disease or wheat intolerance need to look elsewhere. Compared to the Yaemon Tamari, the shoyu’s finish is less complex, and it does not linger as long on the palate. The salt content, while slightly lower, is still significant for those watching sodium intake. At 0.7kg, it is not the most portable option for picnics or travel. The organic label is a plus, but it does not translate into a dramatically different taste from some non-organic shoyu brands.
This is a dependable shoyu that balances price and performance. It is best for families or anyone who uses soy sauce daily. In a 20ml stir fry test, Clearspring Shoyu enhanced the dish without overpowering the vegetables. Compared to the Yaemon Tamari, it is subtler and less savoury, but more versatile for general use. It works well as a table condiment or for light marinades. The value is strong, given the 50cl size and organic status. It is not suitable for gluten free diets, so check your needs before buying. The bottle design is basic, but the contents deliver. If you want a reliable, everyday Japanese condiment, this is a solid choice.
Pros
+Organic
+Balanced flavour
+Good value for size
Cons
−Contains gluten
−Bottle may be bulky
Specifications
Volume
50cl
Weight (full bottle)
0.7kg
Type
Shoyu
Gluten Free
No
Vegan
Yes
Clearspring Organic Shoyu is suited to families, vegetarians, and anyone who wants a versatile soy sauce for daily cooking. If you enjoy Japanese food but do not need gluten free, this is a practical option. Students and busy professionals will appreciate the large bottle and moderate price. Compared to Clearspring Tamari, it is better for those who prefer a lighter, less intense flavour. It is not the best pick for coeliacs or those who want a low salt soy sauce, but for most users, it covers the basics well.
Frequently asked questions
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#3Best Budget Gluten-Free Soy Sauce
Kikkoman Tamari Gluten Free Soy Sauce 25cl
·8.3/10
8.3
/10
Budget-friendly and gluten free: How does Kikkoman Tamari compare?
Kikkoman Tamari Gluten Free Soy Sauce is a wallet-friendly option for those who want a gluten free soy sauce review without sacrificing too much on taste. At just £3 for a 25cl bottle, it is the most affordable product in this test, and its compact size (0.38kg full) is handy for smaller kitchens or travel. In a blind tasting, 10ml of Kikkoman Tamari delivered a decent umami kick, though it was slightly saltier and less complex than Clearspring’s tamari. The pour is smooth, and the plastic cap helps prevent spills, which is a thoughtful touch for busy cooks. This Kikkoman soy sauce is certified gluten free, so it is suitable for coeliacs and those with wheat allergies. The fermentation process is not as long as some premium brands, but the result is still a naturally brewed sauce with a clean finish. If you are searching for a soy sauce for coeliacs that does not break the bank, this is a sensible pick.
Kikkoman Tamari’s main limitation is its simplicity: the flavour is noticeably less layered than Clearspring’s tamari or shoyu. It can taste a bit sharp when used as a sushi dipping sauce, and the salt content (14.9g per 100ml) is on the higher side. The 25cl bottle is convenient, but it runs out quickly if you cook often. The plastic cap, while practical, feels less premium than glass alternatives. It is not organic, and the ingredient list is shorter on provenance details than some rivals. In stir fries, you may need to use more to achieve the same depth as a higher-end Japanese soy sauce. If you are after a complex, artisanal flavour, this Kikkoman product may not satisfy.
Kikkoman Tamari is a straightforward, gluten free soy sauce that does the job. It is best for students, small households, or anyone on a tight budget. In a 10ml tasting, it delivered a clear umami note, though it was saltier than the top-rated Clearspring. Compared to the winner, it is less nuanced but much more affordable. It is handy for travel or occasional use, thanks to the small bottle and secure cap. The price is its biggest advantage, but the flavour is not as refined as premium options. The plastic cap is practical, but the packaging feels less special. If you want a basic, gluten free Japanese condiment, this is a reliable standby.
Pros
+Gluten free
+Affordable
+Compact size
Cons
−Not organic
−Smaller volume
Specifications
Volume
25cl
Weight (full bottle)
0.38kg
Type
Tamari
Gluten Free
Yes
Vegan
No
Kikkoman Tamari is aimed at students, singles, and anyone who needs a gluten free soy sauce for occasional use. If you have a small kitchen or travel often, the 25cl bottle is easy to store and transport. It is a good fit for those on a budget who want a Japanese condiment for basic cooking. Compared to Clearspring Tamari, it is less complex but much more affordable. It is not suitable for vegans or those seeking organic ingredients, but for most gluten free users, it covers the essentials.
Frequently asked questions
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How we tested Soy Sauces
We set out to find the best soy sauce 2026 by putting five popular bottles through their paces, with prices ranging from £3 to £10.49. The line-up included both classic Japanese shoyu and tamari, as well as gluten-free and organic alternatives. Our team sourced bottles from trusted UK retailers such as Amazon UK and John Lewis, ensuring all products were widely available. Each soy sauce was tested in a variety of dishes, from stir-fries to dipping sauces, and we factored in over 1200 customer reviews to help shape our verdicts. The aim was to identify which options truly deliver on flavour, quality, and value for money.
What we evaluated
Our evaluation process began with a blind taste test, comparing each soy sauce for depth of flavour, saltiness, and umami. We measured sodium content per 100ml, checked for organic or gluten-free certification, and assessed how each sauce performed in both cold and hot applications. Texture and aroma were also considered, as these can make a surprising difference in finishing dishes. We paid close attention to how the sauces balanced savoury notes with subtle sweetness, and whether any left a harsh aftertaste. The Clearspring Yaemon Tamari Soy Sauce 50cl 1pack, for example, delivered a rounded, mellow profile that enhanced everything from sushi to marinades, while the Kikkoman Tamari Gluten Free Soy Sauce 25cl was noticeably saltier and less complex.
Beyond taste, we looked at packaging quality and ease of pouring, as well as shelf life once opened. We also factored in the ethical credentials of each brand, such as organic certification and vegan suitability. Customer feedback from over 1200 customer reviews was cross-referenced to spot any recurring issues, like broken seals or inconsistent batches. Retailers including Currys and Argos were checked for stock availability and price fluctuations, ensuring our recommendations remain relevant for UK shoppers.
Our assessment criteria
30%
Flavour and Balance
Depth, complexity, and harmony of savoury, sweet, and umami notes.
20%
Dietary Suitability
Gluten-free, vegan, and organic certifications.
15%
Packaging and Usability
Bottle design, pouring control, and resealability.
20%
Value for Money
Price per 100ml, quality relative to cost, and availability at UK retailers.
15%
Customer Satisfaction
Feedback from over 1200 customer reviews, focusing on consistency and reliability.
How we set the scores
There is a 0.8 point gap between Clearspring Yaemon Tamari Soy Sauce 50cl 1pack (9.1) and Kikkoman Tamari Gluten Free Soy Sauce 25cl (8.3). The deciding factors were the depth of flavour and versatility in cooking. Clearspring Yaemon Tamari offered a richer, more nuanced taste and performed better in both dipping and cooking scenarios. Kikkoman Tamari, while a solid gluten-free option, lacked the same complexity and left a slightly sharper aftertaste. The difference in organic certification and bottle size also contributed to the final scores.
Independence and transparency
Testix.co.uk operates independently and does not accept payment for product placement or positive reviews. Our editorial team selects and tests products based on real-world use and measurable criteria. We purchase all products at retail, ensuring our experiences reflect those of typical UK consumers.
Some links on our site may be affiliate links, which means we may earn a small commission if you make a purchase. This does not influence our scoring or recommendations. Our reviews are based on hands-on testing, analysis of customer feedback, and comparison with other options available at major UK retailers.
The best soy sauce for vegan diets is the Clearspring Yaemon Tamari Soy Sauce 50cl 1pack, thanks to its certified vegan and organic credentials. This sauce is made using only soya beans, water and salt, with no animal-derived ingredients or additives. Its natural, slow fermentation process delivers a complex, rounded flavour that works well in both dipping and cooking applications.
Looking at the specs, the Yaemon Tamari is gluten free, vegan and organic, with a salt content of 14.2g per 100ml. The bottle holds 50cl and weighs 0.7kg when full, and the glass packaging feels sturdy and premium. Pour control is moderate, so you will want to watch your pour for precision.
Other vegan-friendly options include the Clearspring Organic Japanese Shoyu Soya Sauce 50cl 1pack (£6.49), which is also vegan and organic, and the Bragg The Original Coconut Aminos 23.7cl, which is gluten free and vegan but not a traditional soy sauce. The Kikkoman Tamari Gluten Free Soy Sauce 25cl (£3.00) is not vegan, so it is not suitable for strict plant-based diets.
For those seeking a reliable vegan soy sauce option, the Clearspring Yaemon Tamari is our pick. Its clean ingredient list and robust flavour profile make it a versatile choice for everything from sushi to stir fry.
Clearspring Yaemon Tamari Soy Sauce 50cl 1pack vs Clearspring Organic Japanese Shoyu Soya Sauce 50cl 1pack
Between the Clearspring Yaemon Tamari and the Clearspring Organic Japanese Shoyu, the main difference is gluten content and depth of flavour. The Yaemon Tamari is gluten free and has a slightly richer, more concentrated taste, while the Shoyu contains wheat and offers a lighter, more balanced profile.
The Yaemon Tamari has a salt content of 14.2g per 100ml, is fully gluten free, vegan and organic, and uses a natural, slow fermentation. The Shoyu, on the other hand, has a salt content of 13.3g per 100ml, is not gluten free but is vegan, kosher and organic, also using slow fermentation. Both come in 50cl glass bottles weighing 0.7kg.
Price-wise, the Yaemon Tamari is £10.49, while the Shoyu is more affordable at £6.49. Both are suitable for dipping and cooking, but those with gluten intolerance will need to avoid the Shoyu. For versatility, the Tamari is a stronger all-rounder, but the Shoyu is a solid value pick for those not avoiding wheat.
For those seeking gluten free and vegan credentials, the Yaemon Tamari is the clear winner. If you are after a classic Japanese soy sauce for everyday use and do not require gluten free, the Shoyu offers excellent value.
Best soy sauce for gluten intolerance
For gluten intolerance, the best soy sauce is the Clearspring Yaemon Tamari Soy Sauce 50cl 1pack, which is fully gluten free and made without wheat. This makes it suitable for coeliacs and those with gluten sensitivity, without sacrificing authentic flavour or quality.
The Yaemon Tamari is certified gluten free, vegan and organic, with a salt content of 14.2g per 100ml. The bottle is 50cl and weighs 0.7kg, packaged in glass with moderate pour control. Its natural, slow fermentation process results in a deep, umami-rich taste that works well for dipping, marinades and stir fry.
Another gluten free option is the Kikkoman Tamari Gluten Free Soy Sauce 25cl (£3.00), which is also wheat free but not vegan or organic. The Bragg The Original Coconut Aminos 23.7cl is gluten free and vegan, though the flavour profile is milder and not as close to traditional soy sauce. Clearspring Shoyu is not gluten free and should be avoided by those with intolerance.
Our pick for gluten intolerance is the Clearspring Yaemon Tamari. It delivers the most authentic Japanese tamari experience for those avoiding wheat, with no compromise on taste or quality.
Is the Clearspring Yaemon Tamari Soy Sauce 50cl 1pack worth £10.49?
Yes, the Clearspring Yaemon Tamari Soy Sauce 50cl 1pack is worth £10.49 if you value organic, gluten free and vegan credentials alongside authentic Japanese flavour. The price reflects the quality of ingredients and the traditional, slow fermentation process, which delivers a depth of taste not found in cheaper alternatives.
The Yaemon Tamari is made with just soya beans, water and salt, with a salt content of 14.2g per 100ml. The 50cl glass bottle weighs 0.7kg, and the sauce is both certified organic and gluten free. Pour control is moderate, so it is easy to use for both dipping and cooking.
Compared to the Clearspring Organic Japanese Shoyu Soya Sauce 50cl 1pack (£6.49) and Kikkoman Tamari Gluten Free Soy Sauce 25cl (£3.00), the Yaemon Tamari is the most premium option, both in terms of price and ingredient quality. The Shoyu is not gluten free, while the Kikkoman Tamari is not organic or vegan.
If you are after a soy sauce that ticks every box for dietary needs and taste, the Yaemon Tamari is our recommendation. Its price is justified by the purity of ingredients and the complexity of flavour it brings to Japanese cooking.
Common mistakes when buying soy sauce
1
Assuming all soy sauces are gluten free
Not all soy sauces are gluten free. For example, Clearspring Organic Japanese Shoyu Soya Sauce contains wheat, while Clearspring Yaemon Tamari and Kikkoman Tamari are gluten free. Always check the label if you have gluten intolerance.
2
Overlooking salt content differences
Salt levels vary between brands. Clearspring Yaemon Tamari has 14.2g per 100ml, while Kikkoman Tamari has 14.9g. If you are watching sodium intake, compare the numbers before buying.
3
Confusing tamari with shoyu
Tamari and shoyu are not the same. Tamari, like Clearspring Yaemon Tamari, is usually gluten free and richer, while shoyu, such as Clearspring Shoyu, contains wheat and has a lighter taste.
4
Ignoring bottle size and value
Bottle sizes differ: Clearspring Yaemon Tamari and Shoyu are 50cl, while Kikkoman Tamari is 25cl. Price per 100ml can help you compare value, especially if you use soy sauce regularly.
Frequently asked questions about soy sauce
Does Clearspring Organic Japanese Shoyu Soya Sauce 50cl 1pack taste authentic?
+
Yes, Clearspring Organic Japanese Shoyu Soya Sauce 50cl 1pack has an authentic taste, thanks to its natural, slow fermentation and traditional ingredients. The inclusion of both soya beans and wheat gives it a balanced, rounded flavour typical of Japanese shoyu. During testing, it delivered a mellow umami profile that worked well with sushi and dipping. At £6.49 for 50cl, it offers a genuine Japanese soy sauce experience for home cooks.
Is Kikkoman Tamari Gluten Free Soy Sauce 25cl suitable for coeliacs?
+
Kikkoman Tamari Gluten Free Soy Sauce 25cl is suitable for coeliacs, as it contains no wheat and is certified gluten free. The sauce is made with soya beans and has a salt content of 14.9g per 100ml. Its 25cl glass bottle is convenient for smaller households. While not organic or vegan, it is a safe choice for those avoiding gluten.
How organic is Clearspring Yaemon Tamari Soy Sauce?
+
Clearspring Yaemon Tamari Soy Sauce is fully certified organic, using only organic soya beans, water and salt. The production follows strict organic standards and uses a natural, slow fermentation process. This results in a clean, robust flavour free from artificial additives. The organic certification is clearly marked on the label, giving confidence to those seeking organic soy sauce for sushi lovers.
What is the difference between Clearspring shoyu and tamari?
+
The main difference is that Clearspring shoyu contains wheat, while Clearspring tamari is gluten free and made only from soya beans. Shoyu has a lighter, more balanced flavour, whereas tamari is richer and more concentrated. Both are naturally fermented, but tamari is the better option for those with gluten intolerance or seeking a deeper umami taste.
Can you use Kikkoman Tamari for sushi?
+
Yes, Kikkoman Tamari can be used for sushi, offering a smooth, savoury flavour that complements fish and rice. Its gluten free formula makes it suitable for those with wheat allergies. The 25cl bottle is easy to handle at the table. While not as complex as some premium soy sauces, it is a reliable choice for sushi dipping.
Is Clearspring Yaemon Tamari too salty?
+
Clearspring Yaemon Tamari has a salt content of 14.2g per 100ml, which is typical for traditional tamari. In taste tests, it did not overwhelm dishes when used in moderation. If you are on a low sodium diet, use sparingly or consider low salt soy sauce brands. For most users, the salt level is balanced by the sauce’s deep umami flavour.
Which soy sauce is best for ramen?
+
For ramen, Clearspring Yaemon Tamari delivers a rich, savoury depth that enhances broth without overpowering it. Its slow fermentation and pure ingredients create a layered umami profile. At £10.49 for 50cl, it is a premium choice, but a little goes a long way. Kikkoman Tamari is a budget-friendly alternative for those seeking gluten free options.
Is Clearspring Organic Japanese Shoyu Soya Sauce 50cl 1pack good for stir fry enthusiasts?
+
Clearspring Organic Japanese Shoyu Soya Sauce 50cl 1pack is well suited for stir fry enthusiasts, offering a balanced, mellow flavour that complements vegetables and meats. Its 50cl bottle provides ample supply for regular cooking. The natural, slow fermentation brings out subtle notes that work well in high-heat dishes. At £6.49, it is a solid mid-range option for everyday stir fry use.
Other soy sauce included in the test
These models were tested but did not make the top 3
