Radiance Super-Tea with Rosehip & Hibiscus - Aduna Superfoods - 15 bags

In the UK, the sound of a whistling kettle is a national comfort. We are conditioned to wait for that 100C click before we pour. While this high thermal energy is necessary to break down the heavy tannins in a robust Black Breakfast tea, applying the same temperature to Green Tea is a chemical error that results in a bitter, unbalanced brew. At Whole Foods Earth, we prioritise the raw integrity of our leaves. To appreciate them, you must understand the thermal kinetics of extraction—the science of how heat moves molecules from a leaf into your mug. The Molecular War: Tannins vs. Catechins Every tea leaf contains a complex library of polyphenols. The two most important for your sensory experience are Catechins and Tannins. Catechins (The "Good" Stuff): These are the antioxidants, specifically EGCG (Epigallocatechin gallate), that provide the sweet, "umami," and grassy notes of green tea. They are delicate and soluble at lower temperatures. Tannins (The "Bitter" Stuff): These are larger, more complex polyphenols. They provide "astringency"—that dry, puckering sensation on the tongue. They require high thermal energy to break their bonds and enter the water. The 80C Threshold When you pour boiling water over green tea, you aren't just "brewing" it; you are performing an aggressive chemical extraction. The high heat forces the tannins out of the leaf far too quickly, overwhelming the delicate catechins. Scientifically speaking, you are scorching the leaf, denaturing its volatile aromatic compounds before they can reach your palate. Thermal Kinetics: The Solubility Curve Solubility—the ability of a substance to dissolve in a solvent (water)—increases with temperature. However, not all compounds in a tea leaf have the same solubility curve. At 70C - 80C: The water has enough energy to dissolve the sugars and catechins, but not enough to fully "unlock" the aggressive tannins. This results in a bright, sweet, and complex cup. At 100C: The kinetic energy of the water molecules is so high that it aggressively pulls everything out of the leaf at once. This leads to over-extraction, where the bitterness of the tannins masks the sophisticated botanical profile of the tea. Bioavailability and Heat Beyond flavour, there is the matter of bioavailability. Many of the health-optimising polyphenols in green tea are heat-sensitive. Subjecting them to boiling water can cause them to degrade, potentially reducing the antioxidant capacity of your brew. By using a lower temperature, you are preserving the molecular structure of the EGCG, ensuring your body gets the full benefit of the plant's chemistry. Practical Physics for the British Kitchen Most standard UK kettles only have one setting: "Boil." You do not need a laboratory-grade digital kettle to fix your brew. You simply need to understand a bit of heat transfer: The "Lid-Off" Rule: Once your kettle boils, open the lid and wait for approximately 2 to 3 minutes. This allows the water to drop to the 80C range through evaporative cooling. The Cold Splash: Add a small splash of cold water to your mug or teapot before pouring in the boiling water. This "tempers" the water, instantly lowering the average thermal energy. A high-quality, whole-leaf green tea is a living product. Treating it with the correct thermal kinetics isn't about being a "tea snob"—it's about respecting the biology of the plant and ensuring you aren't literally "boiling away" the benefits.

You can source the finest, high-altitude Arabica seeds, invest in a precision burr grinder, and master your pour-over technique—but if you ignore your water, you are ignoring 98% of your cup. In the UK, our tap water is a chemical lottery. Whether you are brewing in a hard-water area like London or the South East, or a soft-water region like Scotland or Wales, the mineral composition of your water fundamentally dictates which flavours are extracted from the bean and which are left behind. The Chemistry of Extraction: It’s All About the Ions Coffee extraction isn't just about "washing" flavour off a bean; it is a complex chemical exchange. The minerals in your water act as "sticky" magnets that pull specific compounds out of the coffee grounds. 1. Magnesium: The Flavour Magnet Scientific studies (notably by chemist Christopher Hendon) have shown that magnesium is the hero of coffee water. Magnesium ions have a high "binding energy." They are particularly effective at pulling out the complex, fruity, and acidic compounds found in light-roast coffees. If your water is rich in magnesium, your coffee will likely taste vibrant and multi-dimensional. 2. Calcium: The Heavy Lifter Calcium also assists in extraction, but it is less "selective" than magnesium. While it helps build body and mouthfeel, too much calcium (common in the UK) can lead to a "chalky" or heavy sensation, often masking the delicate top notes of the coffee. 3. Bicarbonate: The Acid Buffer This is where the "Hard Water" problem really begins. Bicarbonate is a buffer; its biological job is to neutralise acid. While this is great for your pipes, it’s a disaster for coffee. High levels of bicarbonate (alkalinity) neutralise the natural phosphoric and citric acids in the coffee, leaving the brew tasting flat, bitter, and "ashy." The UK Coffee Map: A Tale of Two Taps The UK’s geology creates a massive disparity in how coffee tastes across the country. The Hard-Water South & East: If you live in London, East Anglia, or the South East, your water has likely filtered through limestone and chalk. It is high in calcium and bicarbonate. This water is "chemically full," meaning it has less "room" to pull flavours out of the coffee. The result? A cup that tastes dull, bitter, and lacks the bright acidity intended by the roaster. The Soft-Water North & West: In Scotland, Wales, and parts of Northern England, the water is much "purer" (low mineral content). While this sounds ideal, water that is too soft can be overly aggressive, leading to over-extraction and a sharp, metallic, or unpleasantly sour taste. Region Water Type Impact on Coffee London/South East Very Hard Flat, bitter, muted acidity, "earthy" Scotland/Wales Soft High acidity, potential for "sharpness" Midlands Variable Usually requires moderate filtration Why Light Roasts Suffer the Most This chemistry is particularly important for coffees like our Rawgorilla Organic Whole Beans. Because Rawgorilla is a light roast, it is prized for its tea-like clarity and notes of apricot and marzipan. These delicate flavours are the first to be destroyed by the high bicarbonate levels found in hard UK water. If you brew a light roast with unfiltered London tap water, the "buffer" will neutralise the blackcurrant and apricot notes, leaving you with a cup that tastes like plain, bitter "brown water." How to Fix Your Water Chemistry To reach the "scientific truth" of your beans, you must control your water. Here is the hierarchy of solutions: Ion-Exchange Filters: Standard jug filters can help, but look for ones specifically designed for coffee (like Peak Water or BWT) that exchange calcium for magnesium. The "Third Wave" Method: Some enthusiasts use distilled water and add back precise "sachets" of magnesium and calcium to create the perfect laboratory-grade brewing water. Specific Bottled Waters: In the UK, Ashbeck or Volvic are often used by professionals because their mineral content is closer to the "Speciality Coffee Association" (SCA) ideal than most tap water. Grounded in Science At Whole Foods Earth, we believe in transparency. Coffee isn't a mystery; it’s chemistry. By understanding the interaction between the minerals in your UK tap and the acids in your beans, you can finally stop fighting your water and start tasting the true potential of your coffee.

Hibiscus flowers Hibiscus is a small tree with beautiful, large, colourful flowers. It is not known where hibiscus is from, but it grows naturally in Africa and South Asia. There are about 300 species in the hibiscus family, but only a few of them have edible flowers. Most of them are decorative, ornamental plants you can grow in the garden in warmer climates. The edible flowers of hibiscus have been used for centuries for decoration and medicinal purposes. You probably know hibiscus tea, right? This rose-coloured infusion is made with hibiscus tea. What are dried hibiscus flowers used for? The organic dried hibiscus flowers are used to make teas, powders, extracts and supplements and in cooking and baking, especially jams, relishes, dressings and salads. What is the flavour of hibiscus flowers? The taste of hibiscus flowers is similar to cranberry and pomegranate. It is sweet and slightly earthy. What are the health benefits of hibiscus flowers? Hibiscus contains many beneficial compounds for health. It is rich in vitamins A, B and C. It contains flavonoids, phenolic acids, and organic acids, which act as antioxidants. Hibiscus can help lower blood pressure, stimulate diuretic effects, and reduce high cholesterol. It may help promote weight loss and support heart and liver health. Known for its anti-inflammatory properties, it can also help fight infections by reducing the growth of bacteria and boosting your immunity system. How to make hibiscus tea? Just put a couple of dried hibiscus flowers into a cup with boiling water (100°C). Infuse for a few minutes (5-10 minutes) and enjoy a delicious, relaxing drink.

Food lovers aka foodies are those people who simply love to eat. They often love to cook and bake as well. But be aware, they won't eat anything. Foodies often focus on the best quality foods and the best cooking ingredients. So when you want to offer them a gift, let it be the best foods you can find. Foodies will appreciate a Christmas hamper filled with organic produce, vegetables and fruits, whole foods, organic nuts, fermented foods, quality condiments and pickles, organic olive oil and premium herbs and spices. What to add to a foodie Christmas hamper? Here's the list of products you can be assure, a food lover will love! Rare whole foods & grains Wild rice, freekeh, kasha Wholegrain pasta & noodles wholegrain pasta in different shapes, Italian pasta, Japanese noodles Organic oils & quality vinegars Organic olive oil is always great gift option for a foodie. The best organic olive oil available on the market are Greek olive oil and Portuguese olive oil. There are also some speciality rare oils such as pumpkin seed oil, hemp oil, avocado oil, sesame seed oil and peanut oil as well as a good quality Balsamic vinegar will make a perfect addition to a foodie hamper. Organic nuts Organic almonds, macadamia, pistachios, chestnuts, whole walnuts Organic dried fruits Medjoul dates, dried Mediterranean figs, dried apricots, organic prunes, sultanas Premium herbs and spices Organic herbs: organic oregano, organic Basil, organic rosemary, organic bay leaves, organic thyme, organic sage Organic spices: Ceylon cinnamon, cinnamon sticks, organic black pepper, star anise, cardamon, organic chilli, chilli flakes, Harissa paste, varieties of miso, green, red and yellow curry paste, tandoori Salt Pink Himalayan salt, Kala Namal - black salt, Sea salt, Flor de Sal Pickles and fermented foods Kimchi is many flavours, sauerkraut in different versions, beetroot pickles, cucumber pickles, kombucha Organic tea & coffee Matcha powder, organic roasted coffee beans, 100% Arabica coffee beans, organic green tea, organic Earl Grey, fruit infusions, hibiscus flour

Matcha is a type of green tea that has been consumed in Japan and China for hundreds of years. Known for it amazing health benefits, matcha can help improve your immunity system, levels of energy, skin and mind. Japanese Matcha tea is a fine powder made from green tea leaves. Like all tea, Matcha is made from the tea plant Camellia sinensis.Tea leaves grown for Matcha are specially shade-grown to enhance the chlorophyll levels and the amino acid theanine, which is thought to give the drink its deep earthy umami flavour. Matcha is traditionally prepared in a small bowl with a bamboo whisk. It can be used to create hot and cold drinks, smoothies or added to cakes and pastries. Because of its unique flavour and superfood status, it's now featured in many healthy recipes. Matcha improves immunity system The antioxidants that matcha contains protect the cells from free radicals and boost your immune system. One of the antioxidant called catechin EGEG is useful in preventing and defending the body from bacterial and viral infections. The protection from free radicals helps reduce inflammation and ease the symptoms of some long-term medical conditions such as arthritis. Matcha improves cognitive function Matcha contains some caffeine and antioxidants. When consumed in balance, matcha has some health-improving qualities that include promoting cognitive function, and energy levels. Promotes Relaxation Despite the caffeine content matcha has a calming effect and helps people to relax. It's thanks to significant levels of the chemical called L-theanine. It enables a constant release of caffeine, lessening the hazardous effects that caffeine causes some people anxiety and nervousness. This helps to stay attentive, focused and relaxed. Matcha is healthier than coffee & helps in stress relief Matcha is a source of some additional nutrients not found in coffee and may improve the functioning of the brain. L-theanine improves alpha wave activity in the brain, boosting alertness, focus, as well as relaxation. Matcha also helps in stress relief and helps people with memory loss. It's a good product for people suffering with illnesses like dementia and Alzheimer's. Promotes healthy skin & slows skin aging Matcha helps with clearing your skin through plethora of antioxidants. The catechins in green tea neutralise oxidative stress in skin, which slows the aging process. It also helps to fight common skin diseases such as acne and rosacea. The EGCg has anti-inflammatory properties that lessen skin irritation and minimise rash and redness. The tannins in matcha narrow the pores and stop excessive oil production. Matcha can be used as a skin exfoliator removing dead skin cells and helping you get a more youthful-looking clean complexion. Where to buy matcha in bulk? If you consume organic matcha at home or need larger quantities of it for your restaurant or cafe, you can easily buy matcha in bulk in online stores. At Wholefood Earth, you will always find match at great prices. Buy organic matcha online

The clocks are going forward this weekend and that means one less hour of precious sleep! We’re sure you’ve heard before about how important it is to get a good night’s kip. Sleep is an essential function that allows your mind and body to recharge, as well as keeping yourself healthy and warding off diseases. However, as many of us know, sleeping well isn’t always an easy task. Did you know that certain foods can also aid you in getting a restful night’s sleep? There are a variety of chemicals, enzymes, amino acids and other nutrients that can help in falling and staying asleep, and fortunately, you can find a lot of them in foods and drinks. We want to make sure you’re getting the best sleep possible and have compiled a handy list of sleep inducing foods (plus one drink). So, if you’ve been having trouble falling asleep or staying asleep, why not give these a try? Almonds Almonds are not only a nutritious and healthy snack, but it’s also claimed they may help in boosting sleep quality as well. This is because almonds contain the hormone melatonin, which regulates your internal clock and signals your body to prepare for sleep. Almonds are also a great source of magnesium. Consuming an adequate amount of magnesium may improve sleep quality, especially for anyone suffering with insomnia. Magnesium’s role in promoting sleep is considered to be related to its ability to reduce inflammation. In addition, magnesium can assist in lowering levels of the stress hormone cortisol, which is known to disturb your slumber. For more health benefits of almonds, have a look at our previous article Are Almonds Good For You? Oats You may think of oats as more of a breakfast food, but you might want to try eating a bowl of porridge after dark if you want to catch those precious ZZZZZs. The grains present in oats trigger insulin production much like whole-grain bread, raise your blood sugar naturally which makes you feel drowsy. Oats are also rich in both melatonin and the amino acid tryptophan that helps to produce melatonin, which helps our brain send signals to the rest of our body that it’s time to relax and get some rest. Kiwi Kiwis are a low calorie but extremely nutritious fruit that could also aid you in sleeping better. The sleep-promoting effects of kiwis are sometimes usually attributed to serotonin. Serotonin is a brain chemical that helps regulate your sleep cycle. It’s been proposed that the anti-inflammatory antioxidants in kiwis, such as vitamin C and carotenoids, may also be partially responsible for their sleep-inducing impact. White Rice White rice is a rich source of carbohydrates. It’s high carb content along with its lack of fibre, both contribute to white rice having a large glycaemic index. It’s been suggested that eating foods with a high GI, like white rice, approximately one hour before bed may help in improving sleep quality. Some researchers seem to believe this is due to the large amount of insulin released after eating a high GI meal. Insulin drives the amino acid, Tryptophan, which helps activate drowsiness, into the brain. Chamomile Tea Okay, so it’s not technically a food but we’re still including it on this list! Chamomile tea is widely known as one of the best drinks to help you get your forty winks. But did you know, it doesn’t even contain any tea? It’s actually more of an herbal infusion made from the dried flowers of the chamomile plant. Chamomile tea also contains antioxidants which binds to receptors in the brain that encourage sleepiness and reduce insomnia. Just make sure to drink your cup of chamomile tea around 45 minutes before going to bed so your body has ample time to metabolise the tea. Soya Soya has a wide range of health benefits, and one of them may be aiding you in a good night’s kip! The products produced from soya, such as soya milk, tofu, and tempeh contain good amounts of tryptophan, the substance which can help our bodies synthesise melatonin and serotonin. Another way soya may also benefit your sleep pattern is due to its isoflavone content. Isoflavones are believed to somewhat mimic the hormone oestrogen. Oestrogen can affect the brain via the same neurotransmitters that are involved in sleep regulation. Why not check our latest soya article Why Soya is a Great Meat Substitute Figs Figs are an excellent source of magnesium, potassium, calcium and iron, making them a powerful aid for sleep. All these minerals can assist with muscle contraction along with blood flow, which are both vital for falling asleep. Figs also contain high amounts of fibre, keeping you full through the night and preventing any hunger pangs or midnight cravings that could disturb your slumber. Walnuts Another nut featuring on this sleep inducing food list is the small yet mighty walnut. Some researchers have claimed that eating walnuts improves sleep quality, as they’re one of the best food sources of melatonin. They are made up of many fatty acids that may also contribute to better sleep. Walnuts provide alpha-linolenic acid (ALA), an omega-3 fatty acid that’s converted to DHA in the body. DHA may increase your bodies serotonin production. So, if you’re finding it difficult to nod off, eating a handful of walnuts before bed might just help!