May 2, 2026, 5:49 am | Read time: 5 minutes
Coffee without coffee beans is not a new idea. In addition to grain or chicory coffee, lupine coffee is also among the caffeine-free alternatives. It is made from the seeds of the sweet lupine and roasted and brewed similarly to traditional coffee. Lupines are legumes, with cultivated sweet lupines being primarily used. They are considered protein-rich and very versatile. But can this coffee alternative also convince coffee lovers?
What exactly is lupine coffee?
Lupine coffee is made from the seeds of the sweet lupine. The cleaned and dried lupine seeds are first roasted, as is done with traditional coffee to create the typical aromas. They are then ground and can be brewed like regular coffee, such as filter coffee, in a portafilter, or even in a fully automatic machine if the beans are still whole.
Unlike coffee, lupine coffee contains no caffeine and significantly fewer bitter substances. At the same time, it brings some of the plant’s ingredients, such as protein and minerals, although in smaller amounts than in unprocessed form.
Does lupine coffee taste like regular coffee?
Lupine coffee already tastes reminiscent of classic coffee. The roasting of the seeds also creates strong, slightly bitter aromas that are reminiscent of coffee. At the same time, the taste is often described as milder, nuttier, and less acidic. Typical coffee notes like pronounced bitterness or fruity nuances are missing.
How close lupine coffee comes to the original also depends on the preparation and product. In filter form or as an espresso alternative, it can visually and aromatically resemble coffee. However, those accustomed to the intense taste and stimulating effect of caffeine will notice differences.
Who is the alternative suitable for?
Lupine coffee is particularly suitable for people who want or need to avoid caffeine–such as those with sleep problems, stomach sensitivity, or during pregnancy. As a caffeine-free beverage, it can be an alternative without having to forgo the typical roasted flavor. It can also be an option for people looking to reduce their coffee consumption.
Can you eat lupines that grow in the garden?
As early as ancient Egypt, lupines were eaten or processed into beverages. They have also been growing in Germany for centuries. Botanically, their seeds, similar to peas and beans, are classified as legumes. Especially the cultivated sweet lupines are considered valuable nutrient suppliers, while wild lupines should be avoided due to their ingredients.
If you have lupines in your garden, you should be cautious: Many wild-growing or ornamental varieties contain toxic bitter substances, known as alkaloids. This is pointed out by the Bremen Consumer Center, for example. These make the plants unsuitable for consumption.1
The situation is different with cultivated sweet lupines, which are specifically grown for agriculture. They are largely free of these problematic ingredients and are considered a well-tolerated protein source. From an ecological perspective, they also perform well: Lupines are easy to cultivate and, as legumes, can even improve soil quality by binding nitrogen.
Types of sweet lupines
As the AOK writes, the originally contained bitter substances have been largely reduced in modern cultivations.2 Therefore, these cultivated varieties are called sweet lupines. They are mainly distinguished by their flower color–essentially into three main types or colors:
- Yellow lupine
- White lupine
- Blue/Purple lupine
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What nutrients are in sweet lupines?
Sweet lupines are considered particularly protein-rich: Up to 40 grams of protein are found in 100 grams of dried seeds–a value comparable to soy. In processed products such as lupine flour or lupine yogurt, the protein content can vary. They are primarily of interest to people who follow a vegetarian or vegan diet. Additionally, lupines provide important minerals like iron, potassium, and magnesium.
However, they are not equally suitable for everyone. People with a peanut allergy should be cautious, as cross-allergies are known: Those who react to peanuts may also not tolerate lupines. Such an allergic reaction can manifest as tingling in the mouth, coughing, or other typical symptoms. In the EU, lupine is also one of the allergens that must be labeled.3
Other uses for sweet lupines
Sweet lupines can be used in a variety of ways. They are available in stores, similar to chickpeas, both dried and pre-cooked and canned or jarred. In the kitchen, the seeds can be used in curries or processed into sauces.
Additionally, lupines are offered in various forms, such as flour, which is particularly suitable for gluten-free bread or pastries. Plant-based alternatives to dairy products are increasingly based on the legume, from drinks to yogurt and dessert variants to plant-based ice cream.