Homemade Elderflower Cordial Cost Calculator

See if making your own elderflower cordial saves money per bottle.

$
$
$
$
$

Frequently Asked Questions

When is the best time to pick elderflowers?
Elderflowers bloom for a brief window, typically late May through mid-July in the northern hemisphere. Pick the flower heads when they are fully open and fragrant — usually in the morning on a dry day. Avoid buds that have not opened and any heads that have started to brown or smell unpleasant.
Do I need citric acid, and can I substitute it?
Citric acid serves two purposes: it adds brightness and acts as a mild preservative to extend shelf life. You can substitute with lemon juice (use the juice of three extra lemons per batch), but the cordial will have a shorter fridge life of around two to three weeks. Citric acid is cheap, widely available online, and a small bag will last many batches.
How long does homemade elderflower cordial keep?
Unopened bottles stored in a cool, dark place keep for up to six months when made with citric acid and properly sterilized bottles. Once opened, refrigerate and use within four to six weeks. Freezing the cordial is a great way to enjoy it year-round when elderflowers are out of season.
How is elderflower cordial different from St-Germain?
St-Germain is an elderflower liqueur with an alcohol content of around 20% ABV, making it a cocktail ingredient rather than a soft drink mixer. Elderflower cordial is non-alcoholic and meant to be diluted with water or sparkling water. Homemade cordial most closely resembles Belvoir or Bottle Green brand cordials.
Can I make elderflower cordial without fresh flowers?
Dried elderflowers can be used as a substitute when fresh flowers are out of season. Use roughly one-third the weight compared to fresh heads and steep for a shorter time (around 12 hours) to avoid bitterness. The flavour is somewhat less vibrant than fresh, but the result is still pleasant.

Is Homemade Elderflower Cordial Actually Cheaper?

Elderflower cordial is one of those rare seasonal treats that looks expensive on a shop shelf but costs surprisingly little to make at home. Belvoir Elderflower Cordial typically retails for $12–$18 per 500 ml bottle, and the St-Germain elderflower liqueur runs $30–$40 for 750 ml. A home batch made with foraged or market-bought elderflower heads, sugar, citric acid, and lemons can cost a fraction of that — often under $4 per bottle when elderflowers are in season.

The key variable is your flower source. If you can forage elderflower heads for free from a tree you trust (away from roadsides and pesticide use), your ingredient cost drops to almost nothing and the savings become dramatic. If you buy them from a farmers' market or specialty grocer, prices range from $3 to $10 per bunch depending on location and season.

What Goes Into the Cost

A standard batch of elderflower cordial uses 20–30 fresh elderflower heads, around 4 cups (800 g) of white sugar, 2–3 unwaxed lemons, and roughly 1–2 teaspoons of citric acid as a preservative. Sugar is the largest purchased expense — bought in bulk, a 10 lb bag costs $6–$8 and covers multiple batches. Citric acid is sold cheaply in bulk online or at home-brew suppliers and lasts for dozens of batches.

Shelf Life and Preservation

Citric acid is the key to a longer shelf life. Without it, homemade cordial keeps for about two weeks in the fridge. With citric acid and proper sterilization, unopened bottles can last 3–6 months in a cool, dark place.