Grandma and Grandpa just know best – Lifehacks to make food last longer
Miriam Weitz
May 31, 2023
Preserving strawberries
The strawberry season has recently started again. The popular fruit can be preserved for up to a year by canning - to bridge the time until the next season. For this, you need sufficiently large jam jars. Put the strawberries and 1 tablespoon of sugar into the jar and then fill it up with water. After that, place the jars upside down in a pot of water. Bring the water to a boil, turn off the stove, and let the jars stand in the hot water for two hours. After that, the strawberries can be stored unopened for about 1 year.
Freeze herbs
Fresh herbs are a staple in the kitchen. The problem is that they often don't stay fresh for long, especially when you've bought them in larger quantities. The solution: Simply freeze the herbs with some oil. This way, they remain fresh and crisp for longer. Finely chopped herbs can actually be frozen perfectly in an ice cube tray (mixing ratio 2/3 herbs, 1/3 oil, or water). In the SpeisekammerApp, it is also possible to assign the freezer and/or the deep freeze as a storage location.
The thing with the cucumber
Cucumbers are a true vegetable all-rounder. They can be enjoyed as a snack in between meals and they enhance just about any salad. However, cucumbers should be processed as fresh as possible, otherwise, there's a risk that they become limp and mushy quickly. How can this be prevented? First of all, cucumbers actually do not belong in the refrigerator. The ideal storage temperature for the vegetable is between 10 and 13 degrees Celsius. If a cucumber is stored in the fridge, it will last a maximum of four days. The ideal place for storage is the vegetable compartment. However, not in the vicinity of apples, tomatoes, or similar. These emit the gas ethylene, which causes the cucumber to ripen faster.
Drying food
Another way to preserve food for a longer time is by dehydrating, which means drying the food. Probably the most well-known dried fruit is the raisin - which is a dried grape. Dehydration removes moisture from the food, thus depriving microorganisms and enzymes, which are responsible for food spoilage, of their breeding ground. You can dehydrate food using a dehydrator, in the oven, or on the balcony. Here follows a detailed blog post.
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Another method to preserve food for a longer time is to pickle it in alcohol, brine, or oil. Here too, microorganisms are deprived of oxygen. Pickled foods can last about a year. High-proof alcohol like rum, vodka, cognac, arrack, or brandy is particularly suitable for pickling. Fruits are commonly pickled in alcohol, with rum pot, Calvados apples, or Williams pear being some of the most well-known. To achieve a special flavor note, one can also add vanilla, basil, or parsley, for example.
Make bananas last longer
It's commonly known that bananas actually don't belong in the refrigerator. However, there is a way to keep the popular fruit from getting brown spots for a longer time. All you have to do is hang the bananas up. When lying down, bananas tend to get pressure marks, which later turn brown or black. The tropical fruits are most comfortable in a dark, cool place that should also be dry. To slow down the ripening process, you can also wrap cling film around the stem.
Onions and nylon stockings - a match made in heaven
Onions are naturally quite long-lasting in terms of storage, but there's a trick to extend their shelf life: using nylon stockings. To do this, place the onions into a long nylon stocking (for example, repurposed tights or socks) and tie a knot after each onion. When you need an onion, simply cut above the knot. Spring onions last longer if you slice them into rings and then place them into a cleaned plastic bottle, which is then stored in the refrigerator.
Broccoli in a glass of water
Those who enjoy eating broccoli and want to keep it fresh longer should trim the stalk and place it in a glass of water like a bouquet of flowers. The water should be changed daily. Broccoli prefers a cool environment, so the best place to store it is in the refrigerator. The vegetable does not continue to ripen, but it does dry out with prolonged storage (whether in water or not). Moreover, the taste or aroma changes as the broccoli ages. Frozen broccoli, on the other hand, can last for several months.
More clarity when shopping: How Open Food Facts and the Smantry app make nutrition transparent
Many foods look healthy at first glance – but what's really inside them? Are the nutritional values balanced? How processed is a product? And what impact does it have on our environment?
This is exactly where the Smantry-App comes in: It uses the globally open database Open Food Facts, to give you immediate clarity when scanning your items. But what's actually behind the colorful labels like Nutri-Score, NOVA or Eco-Score, that you encounter in the app?
Let's take a closer look at the background.
Open Food Facts: From the Idea to a Global Database
The journey began in 2012 with the founding of Open Food Facts – a non-profit organization that collects, analyzes, and makes food information freely accessible worldwide. The goal from the beginning was to provide consumers with scientifically substantiated information.
What started as a small project has now become a global platform with millions of products. And it is precisely this data that the Smantry-App uses to give you a clear overview directly on your smartphone.
An overview of the most important scores
1. Nutri-Score – how healthy is my product?
Since 2016, the Nutri-Score has been legally established in France – and it has quickly spread throughout Europe.
- A (green) means: very balanced.
- E (red) means: unbalanced, enjoy in moderation.
The rating is based on calories, sugar, salt, saturated fats – but also on positive factors such as fiber, protein, and the proportion of vegetables.
👉 So in the Smantry app, you can see at a glance whether a food item fits into your everyday life – or perhaps should be on the table less often.
2. NOVA-Score – how processed is it?
Not only the ingredients, but also the degree of processing plays a significant role for health. This is exactly what the NOVA-Score (integrated into Open Food Facts since 2018) shows you:
- 1 = unprocessed or minimally processed (e.g., fresh fruit, plain yogurt)
- 2 = ingredients such as vegetable oils, sugar, flour
- 3 = processed foods (e.g., bread, cheese, canned goods)
- 4 = highly processed products ("Ultra-Processed Food"), often with additives, flavors, and industrial processes
👉 With the Smantry app, you can instantly tell if a product is still 'close to nature' – or if it falls into the category of being highly processed.
3. Eco-Score (soon to be Green-Score) – how sustainable is my shopping?
Since 2019, Open Food Facts also includes an environmental assessment: the Eco-Score. It takes into account, among other things:
- CO₂ emissions from production and transportation,
- Packaging and recyclability,
- Origin and seasonal factors.
The rating is – similar to the Nutri-Score – from A (very eco-friendly) to E (less sustainable).
By 2025, this will become the Green-Score, which will take into account even more detailed data and thus provide you with even better guidance for sustainable consumption.
👉 For you in the Smantry app, this means: You can see not only whether a food is healthy for you, but also whether it is good for our planet.
What this means for you as a Smantry user
Currently, you can scan your products in the Smantry-App and view many details. The scores themselves are not yet integrated – but the integration is planned.
This means: Soon you will be able to see not only the nutritional values of a product but also how healthy, processed, or sustainable it is – all directly in your app.
Conclusion: Your Smart Nutrition Compass
The colorful labels are much more than pretty symbols. They are your quick compass in everyday life – whether you want to shop with health consciousness, reduce highly processed products, or pay attention to the environment.
With the Smantry-App you already have strong support for more transparency while shopping. And with the planned integration of the scores, it will become even more valuable – your smart nutritional compass for the future.
Cooking with the Future: Augmented Reality and Smart Interfaces for Your Recipes
That’s exactly what augmented reality (AR) and smart interfaces bring to the table. They project digital information where you need it most: into your cooking environment. This makes it easier to stay organized, cook more efficiently, and even reduce waste – because less stress in the kitchen often means fewer forgotten or spoiled ingredients.
And here’s where Smantry comes in. The app already helps you keep track of your pantry, avoid food waste, and stay in control of your kitchen. With upcoming features like leftover-based recipe suggestions, you’re already stepping into the smart kitchen future today.
👉 Bottom line: The kitchen of tomorrow is here – and it’s efficient, sustainable, and surprisingly fun.
The best kitchen tools to turn leftovers into delicious dishes 🍲✨
Hand on heart: Each of us has them – those little leftovers in the fridge or pantry that somehow never get properly planned for. But it's exactly these remnants that can often be turned into the most creative and delicious dishes! All you need are a few clever kitchen tools that make the work easier and get the best out of your ingredients.
Here are our favorites:
🥣 1. The powerful blender
Smoothies, soups, dips – a good blender transforms leftover vegetables, fruit, or even bread into a new dish in seconds. Perfect when bananas are a bit brown or the vegetables no longer look crisp.
🔪 2. A sharp chef's knife
Sounds simple, but a really good knife is worth its weight in gold. It allows you to cut vegetable and meat scraps precisely and quickly. Moreover, cooking is just more fun when you have the right tools.
🍳 3. A cast iron skillet
The all-rounder in the kitchen: fried potatoes made from leftover boiled potatoes, frittatas with yesterday's vegetables, or crispy bread cubes from stale bread – everything tastes twice as good in a cast-iron skillet.
🥕 4. Vegetable Peeler & Grater
A modest tool with a big impact: grate carrot leftovers, turn zucchini into noodles, or finely shred cheese remnants. With a peeler and grater, you bring variety to your leftover cooking.
🥡 5. Storage Containers & Screw-top Jars
Without proper storage, nothing works. You can keep leftovers fresh, transport them, or even prepare them for the next meal prepping. Tip: Jars are also great for serving small amounts in style.
🌱 6. Kitchen Scale
It's practical to know exactly how much is left over, especially with leftovers. This way, you can adjust recipes and avoid waste.
🥄 7. Personal Blender
The little brother of the blender – perfect for soups or sauces right in the pot. When only a small amount needs to be processed, it's super convenient.
How Smantry additionally helps you 📲
With the Smantry App you can not only keep an eye on your supplies, but soon you'll also be able to discover recipes for your leftovers. This way, you'll immediately know which tool to take out of the cupboard to save your food and create something new.
👉 Because good tools and the right app are the perfect combo to combat food waste.
New laws on food waste in Spain
Spain has recently passed a groundbreaking law to combat food waste. This law requires all actors in the food chain, from producers to retailers, to implement specific plans to prevent food loss.
Key provisions of the law:
Obligation to donate surplus food: Supermarkets with a floor space of more than 1,300 square meters are now required to form partnerships with non-profit organizations to donate surplus food that is still fit for consumption. These donations are exempt from value-added tax.
Offer of packaging for leftover food: Restaurants and bars are required to provide their guests with free, reusable or recyclable packaging so that they can take home uneaten food. The aim is to raise consumer awareness of food waste and encourage them to take leftovers with them.
Promotion of the sale of products with approaching expiration dates: Retailers should offer products that are nearing their expiration date or have aesthetic defects at reduced prices to encourage their sale and reduce waste.
Hierarchy of priorities for dealing with surplus food: The law establishes an order for handling surplus food. Priority is given to human consumption through donations. If this is not possible, the food should be used for the production of processed products. The last options include using it as animal feed or for energy generation.
Sanctions for violations:
Companies that violate the provisions of the law can expect fines ranging from 2,000 to 500,000 euros.
Critique and Outlook:
While the law is considered an important step in the fight against food waste in Europe, there is also criticism. Some voices argue that the strict framework of sanctions could disproportionately burden companies and that the law does not sufficiently address the role of consumers, who are responsible for a significant portion of food waste.
Nevertheless, the law is seen as a significant advancement in reducing food waste and promoting a more sustainable awareness in society.
Join in and reduce food waste! 🌱📲
Spain's new law demonstrates: Sustainability starts in the pantry! With the Speisekammer App you can keep track of your groceries, plan meals efficiently, and avoid unnecessary waste.
👉 Download the app now and join the movement for less waste and more conscious consumption! 💚 Try it now!